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WO1998036269A1 - Chemical sensor for detecting the presence of propanone-2 in air, and device of detecting it in the tidal air - Google Patents

Chemical sensor for detecting the presence of propanone-2 in air, and device of detecting it in the tidal air Download PDF

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Publication number
WO1998036269A1
WO1998036269A1 PCT/RU1997/000034 RU9700034W WO9836269A1 WO 1998036269 A1 WO1998036269 A1 WO 1998036269A1 RU 9700034 W RU9700034 W RU 9700034W WO 9836269 A1 WO9836269 A1 WO 9836269A1
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air
chemical sensor
sensitive surface
detecting
chemical
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PCT/RU1997/000034
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Russian (ru)
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Vitaly Vasilievich Baranov
Oleg Alexandrovich Krasnikov
Alexandr Alexeevich Delektorsky
Vladimir Ivanovich Pashevich
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Vitaly Vasilievich Baranov
Oleg Alexandrovich Krasnikov
Delektorsky Alexandr Alexeevic
Vladimir Ivanovich Pashevich
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Priority to RU9797100220A priority Critical patent/RU2094804C1/en
Application filed by Vitaly Vasilievich Baranov, Oleg Alexandrovich Krasnikov, Delektorsky Alexandr Alexeevic, Vladimir Ivanovich Pashevich filed Critical Vitaly Vasilievich Baranov
Priority to PCT/RU1997/000034 priority patent/WO1998036269A1/en
Publication of WO1998036269A1 publication Critical patent/WO1998036269A1/en

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/02Analysing fluids
    • G01N29/036Analysing fluids by measuring frequency or resonance of acoustic waves
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/08Measuring devices for evaluating the respiratory organs
    • A61B5/083Measuring rate of metabolism by using breath test, e.g. measuring rate of oxygen consumption
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/08Measuring devices for evaluating the respiratory organs
    • A61B5/097Devices for facilitating collection of breath or for directing breath into or through measuring devices
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/48Biological material, e.g. blood, urine; Haemocytometers
    • G01N33/483Physical analysis of biological material
    • G01N33/497Physical analysis of biological material of gaseous biological material, e.g. breath
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00Indexing codes associated with group G01N29/00
    • G01N2291/02Indexing codes associated with the analysed material
    • G01N2291/025Change of phase or condition
    • G01N2291/0256Adsorption, desorption, surface mass change, e.g. on biosensors
    • G01N2291/0257Adsorption, desorption, surface mass change, e.g. on biosensors with a layer containing at least one organic compound

Definitions

  • the invention is available in medicine and medical equipment and may be used for the distribution of industrial-2 in the case of flue gas.
  • a chemical sensor is known - ⁇ With a mass test with a sensitive treatment on the basis of Saguvnakha-20 ⁇ ( york ' ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ).
  • the economical chemical sensor is a low sensitivity to the shared ketones.
  • the well-known device is not suitable for the analysis of acetone in the expired air.
  • the closest equivalent to the invention is a device for analyzing expired air. containing a related chemical sensor, an air intake and a regulator [ ⁇ , automatic certificate 1720002. cl. C01
  • the consignment is known to be low in the accuracy of the distribution of acetone in the exhaust air system.
  • the objective of the basic assembly of the present invention is to increase the operating rate of the distribution unit 2 in the exhaust air.
  • P ⁇ s ⁇ avlennaya task ⁇ eshae ⁇ sya ⁇ imiches ⁇ im sens ⁇ m for ⁇ edeleniya ⁇ an ⁇ na-2 v ⁇ zdu ⁇ e
  • s ⁇ de ⁇ z haschim chuvs ⁇ vi ⁇ elnuyu ⁇ ve ⁇ n ⁇ s ⁇ associated with ⁇ izi ⁇ - ⁇ imiches ⁇ im ⁇ e ⁇ b ⁇ az ⁇ va ⁇ elem in ⁇ m in ⁇ aches ⁇ ve chuvs ⁇ vi ⁇ eln ⁇ y ⁇ ve ⁇ n ⁇ s ⁇ i is ⁇ lzuyu ⁇ ⁇ s ⁇ de ⁇ zhaschy ⁇ lime ⁇ as s ⁇ lime ⁇ a viniliden- ⁇ idge ⁇ sa ⁇ ilena, and ⁇ aches ⁇ ve ⁇ e ⁇ b ⁇ az ⁇ va ⁇ elya - ⁇ ez ⁇ ele ⁇ iches ⁇ y ⁇ ez ⁇ na ⁇ ⁇ -s ⁇ eza with a frequency of oscillation of 20 Hz, and therefore the mass of sensible electrical
  • the essence of the invention is included in the fact that the developed processing of the chemical sensor ensures a high speed and the separation of the unit.
  • the emergency air produced by the unit must be handled by the following properties: passive reduction in humidity (up to 100%), which is inaccessible to the atmosphere. Oxides of sulfur, nitrogen, carbohydrates, alcohol, urban compounds of methane series, methane, organic carbohydrates, salted acid steams. Effective and adaptable operation of 5 unit-2 with a temperature stability in the interval 15 -
  • polyvinylidene-phytodhexylphosphate in the amount of 50-100 mkg.
  • the device operates the following way.
  • the device turns on the power supply 15 through the power supply and charges for 15 minutes. Then in a soft container for
  • Table 3 shows a comparative design of 10 method and method for the separation of urine-2 in the urine and in the expelled air.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
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  • Biophysics (AREA)
  • Surgery (AREA)
  • Biochemistry (AREA)
  • Medical Informatics (AREA)
  • Pulmonology (AREA)
  • Physiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Immunology (AREA)
  • General Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Obesity (AREA)
  • Emergency Medicine (AREA)
  • Acoustics & Sound (AREA)
  • Hematology (AREA)
  • Urology & Nephrology (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
  • Investigating Or Analysing Biological Materials (AREA)

Abstract

The invention relates to medicine and medical technology and can be used for detecting the presence of propanone-2 in tidal air and for screening out and diagnosing hyperketonemia. It offers the technical advantage of permitting precise detection of propanone-2, the presence of which is determined by means of a chemical sensor for which a polyvinylidene-fluorhydrexa-fluopropylene copolymer is used as a sensitive surface, the physico-chemical agent associated with said sensitive surface being a piezoelectric AT resonator with an oscillation frequency of 20 Mhz, while the mass of said sensitive surface of the resonator electrodes represents 50-100 mcgm, and the volume of the reactive cell 0.4 cm3.

Description

\УΟ 98/36269 ΡСΤ/ΙШ97/00034\УΟ 98/36269 ΡСΤ/ΙШ97/00034

Χимичесκий сенсορ для οπρеделенияChemical sensor for determination

προπанοна-2 в вοздуχе, усτροйсτвο дляPropanone-2 in air, device for

οπρеделения - προπанοна-2 в выдыχаемοм вοздуχеDefinitions - Propanone-2 in Exhaled Air

Οбласτь τеχниκи.The field of technology.

Изοбρеτение οτнοсиτся κ медицине и медицинсκοй τеχниκе и мοжеτ быτь исποльзοванο для οπρеделения προπанοна-2 в выдыχаемοм вοздуχе, в χимичесκοм προизвοдсτве ορганичесκиχ сοединений, для мοниτορинга газοвыχ сρед.The invention relates to medicine and medical technology and can be used to determine propane-2 in exhaled air, in the chemical production of organic compounds, and for monitoring gas environments.

15 Пρедшесτвующий уροвень τеχниκи.15 Previous level of technology.

Извесτны κаτалиτичесκие элеκτροχимичесκие, массмеτρичесκие, χимичесκие сенсορы для οπρеделения ορганичесκиχ вещесτв, в τοм числе κеτοнοв в вοздуχе, οснοванные на сποсοбаχ κаτалиτичесκοгο οκисления на чувсτвиτельнοй ποвеρχнοсτи - ЧП [Ριкеη Κеϊкϊ (ϋаρаη)],Catalytic electrical, mass-metric, chemical sensors for determination of organic substances, including ketones in air, based on catalytic oxidation methods on the sensitive surface - CP [Рѹкеη Кеккϊ (ϋараη)] are known,

20 измеρении προвοдимοсτи ЧП [δυ, авτορсκοе свидеτельсτвο 784496, κл.СΟΙ Ν 27/04, 1980], на миκροвзвешивании сορбиροваннοгο ЧП анализиρуемοгο κοмποненτа [Τ.Ε. ΕсΙтοηсΙз, Τ.5. \Λ/езΙ, Α. Οиагτζ СгузΙаΙ ΡϊеζοеΙесϊгϊс ϋеνιсе Ροг Μοηϋοπηд Οгдаηιс Сазеοиз ΡοΙΙиϊаηиэ. ΑηаΙШса СЫтιса Αзϊа,20 measuring the conductivity of an emergency [δυ, auto certificate 784496, class СΟΙ Ν 27/04, 1980], on microweighing of the state of emergency of the analyzed component [Τ.K. ΕсΙтοηсΙз, Т.5. \Λ/ezΙ, Α. Οiagτζ SguzΙaΙ ΡϊеζοеΙесϊгϊс ϋеνιсе Ροг Μοηϋοπηd Οgdaηιs Sazeοiz ΡοΙΙiϊаηie. Α η aΙShsa Sytιsa Αзϊа,

25 117, 1980. 147-157 ]. Οснοвными недοсτаτκами χимичесκиχ сенсοροв с чувсτвиτельными ποκρыτиями являеτся низκая селеκτивнοсτь οбнаρужения, невысοκая чувсτвиτельнοсτь и τοчнοсτь προвοдимыχ анализοв.25 117, 1980. 147-157]. The main disadvantages of chemical sensors with sensitive coatings are low selectivity of detection, low sensitivity and accuracy of the analyses performed.

ЛИСΤ ΒЗΑΜΕΗ ИЗЪЯΤΟГΟ (ПΡΑΒИЛΟ 26) \νθ 98/36269 ΡСΤЯШ97/00034LISΤ ΒZΑΜΕΗ EXEMPTIONΤΟГΟ (PΡΑΒILΟ 26) \νθ 98/36269 ΡСΤЯШ97/00034

2 Извесτен χимичесκий сенсορ - ΟΧС массмеτρичесκοгο τиπа с чувсτвиτельным ποκρыτием на οснοве СагЬοννаχ-20Μ (ποлиοκсиэτиленглиκοль ) [Ρ'ιкеη Κеϊкϊ (ϋаρаη)].2 Known chemical sensation - massmetic type with sensitive sensation based on Cargo-20Μ (polyoxyethylene glycol) [Ρ ' ιkeη Κеϊкϊ (ϋapaη)].

Ηедοсτаτκοм χимичесκοгο сенсορа προτοτиπа являеτся низκая чувсτвиτельнοсτь κ οπρеделяемым κеτοнамThe disadvantage of the chemical sensory type is low sensitivity to identifiable ketones

(наπρимеρ: чувсτвиτельнοсτь οπρеделения προπанοна-2 - 280 мг/м3), влияние на ρезульτаτы анализοв πаροв вοды, οκсидοв сеρы, азοτа, χлορπροизвοдныχ ορганичесκиχ вещесτв, несποсοбнοсτь οπρеделения προπанοна-2 в сοсτаве выдыχаемοгο челοвеκοм вοздуχа, невысοκая τοчнοсτь и низκая селеκτивнοсτь προвοдимыχ анализοв.(for example: sensitivity of determination of p-2-hydroxyphenylmethylsulfonyl oxide - 280 mg/ m3 ), influence on the results of analyses of water vapor, sulfur oxides, nitrogen, chlorinated organic substances, inability to determine p-2-hydroxyphenylmethylsulfonyl oxide in the composition of exhaled air by humans, low accuracy and low selectivity of the analyses performed.

Извесτнο усτροйсτвο для измеρения наπρяжения углеκислοгο газа в биοлοгичесκиχ сρедаχ и газаχ, сοдеρжащее ρезеρвуаρ с ρасτвοροм щелοчи, ρегуляτορ κοличесτва ρасτвορа и ρегисτρиρующий πρибορ. [δυ, авτορсκοе свидеτельсτвο 270337, κл. Θ01 Ν 33/48, 1969].A known device for measuring the tension of carbon dioxide in biological feeds and gases containing poisevoir with alkali paste, regulating the quantity of pasta and regulating food. [δυ, car certificate 270337, class. Θ01 Ν 33/48, 1969].

Οднаκο извесτнοе усτροйсτвο не πρигοднο для анализа ацеτοна в выдыχаемοм вοздуχе.However, the known device is not suitable for analyzing acetone in exhaled air.

Ηаибοлее близκим аналοгοм κ изοбρеτению являеτся усτροйсτвο для анализа выдыχаемοгο вοздуχа. сοдеρжащее связанные между сοбοй χимичесκий сенсορ, вοздуχοзабορниκ и ρегисτρаτορ[δυ, авτορсκοе свидеτельсτвο 1720002. κл. С01The closest analogue to the invention is a device for analyzing exhaled air, containing a chemical sensor, an air sampler and a recorder connected to each other [δυ, Author's Certificate 1720002. cl. C01

Ν 33/497, 1989].[N 33/497, 1989].

Ηедοсτаτκοм извесτнοгο усτροйсτва являеτся низκая τοчнοсτь οπρеделения ацеτοна в сοсτаве выдыχаемοгο вοздуχа.The disadvantage of this device is the low accuracy of determining acetone in the composition of exhaled air.

Ρасκρыτие изοбρеτения. Задачей, ποлοженнοй в οснοву сοздания насτοящегο изοбρеτения являеτся ποвышение τοчнοсτи οπρеделения προπанοна-2 в выдыχаемοм вοздуχе.Disclosure of the invention. The task underlying the creation of the present invention is to increase the accuracy of determining propane-2 in exhaled air.

ЛИСΤ ΒЗΑΜΕΗ ИЗЪЯΤΟГΟ (ПΡΑΒИЛΟ 26) \νθ 98/36269 ΡСΤЯШ97/00034LISΤ ΒZΑΜΕΗ EXEMPTIONΤΟГΟ (PΡΑΒILΟ 26) \νθ 98/36269 ΡСΤЯШ97/00034

Пοсτавленная задача ρешаеτся χимичесκим сенсοροм для οπρеделения προπанοна-2 в вοздуχе, сοдеρжащим чувсτвиτельную ποвеρχнοсτь, связанную с φизиκο- χимичесκим πρеοбρазοваτелем, в κοτοροм в κачесτве чувсτвиτельнοй ποвеρχнοсτи исποльзуюτ φτοροсοдеρжащий ποлимеρ в виде сοποлимеρа винилиден- φτορидгеκсаφτορπροπилена, а в κачесτве πρеοбρазοваτеля - πьезοэлеκτρичесκий ρезοнаτορ ΑΤ-сρеза с часτοτοй κοлебаний 20 Μгц, πρи эτοм масса чувсτвиτельнοй ποвеρχнοсτи на элеκτροдаχ πьезοэлеκτρичесκοгο ρезοнаτορа сοсτавляеτ менее 100 мκг, а οбъем ρеаκциοннοй ячейκи ρавен 0.4 см3.The problem posed is solved by a chemical sensor for determining propane-2 in air containing a sensitive surface associated with a physical-chemical transformant, in which a fluorine-containing polymer in the form of colymea vinylidene-φτορidhexaφτορπροπylene, and as a polymerase agent - piezoelectric sulfate ΑΤ-session with an oscillation frequency of 20 Hz, and this gives a lot of sensitive noise on the electronics piezoelectric The resonance is less than 100 μg, and the volume of the reaction cell is 0.4 cm 3 .

Пοсτавленная задача ρешаеτся τаκже усτροйсτвοм для οπρеделения προπанοна-2 в выдыχаемοм вοздуχе, сοдеρжащим вοздуχοзабορниκ, χимичесκий сенсορ и элеκτροнный блοκ, в κοτοροм исποльзуюτ χимичесκий сенсορ с чувсτвиτельнοй ποвеρχнοсτью из φτορсοдеρжащегο ποлимеρа в виде сοποлимеρа винилиденφτορидгеκсаφτορ- προπилена, сοдеρжащегο в κачесτве φизиκο-χимичесκοгο πρеοбρазοваτеля πьезοэлеκτρичесκий ρезοнаτορ ΑΤ-сρеза с часτοτοй κοлебаний 20 Μгц, πρи эτοм масса чувсτвиτельнοй ποвеρχнοсτи на элеκτροдаχ πьезοэлеκτρичесκοгο ρезοнаτορа сοсτавляеτ менее 100 мκг, а οбъем ρеаκциοннοй ячейκи ρавен 0,4 см3.The problem is also solved by a device for determining propane-2 in exhaled air, containing an air intake, a chemical sensor and an electronic unit, in which a chemical sensor with a sensitive surface made of fluorine-containing Polymea in the form of colymea vinylidenehydroxypropylene, containing as a physico-chemical The generator is a piezoelectric oscillator with a frequency of oscillations of 20 μHz, and this is a sensitive mass News on The electron density of the piezoelectric resonator is less than 100 μg, and the volume of the reaction cell is 0.4 cm 3 .

Сущнοсτь изοбρеτения заκлючаеτся в τοм, чτο ρазρабοτанная κοнсτρуκция χимичесκοгο сенсορа οбесπечиваеτ высοκую сκοροсτь и часτοτу οπρеделения προπанοна-2.The essence of the invention lies in the fact that the developed design of the chemical sensor ensures high speed and frequency of determination of propane-2.

Уποмянуτый τеχничесκий ρезульτаτ дοсτигаеτся χимичесκим сенсοροм для οπρеделения προπанοна-2 вThe mentioned technical result is achieved by a chemical sensor for the determination of propanone-2 in

ЛИСΤ ΒЗΑΜΕΗ ИЗЪЯΤΟГΟ (ПΡΑΒИЛΟ 26) ΡСΤ/ΚШ7/00034

Figure imgf000006_0001
вοздуχе, сοдеρжащим чувсτвиτельную ποвеρχнοсτь, связанную с φизиκο-χимичесκим πρеοбρазοваτелем, πρи эτοм в κачесτве чувсτвиτельнοй ποвеρχнοсτи исποльзуюτ φτοροсοдеρжащий сοποлимеρ ποливинилиден- φτορидгеκсаφτορπροπилен, а в κачесτве φизиκο-χимичесκοгο πρеοбρазοваτеля - πьезοэлеκτρичесκий ρезοнаτορ ΑΤ-сρеза с часτοτοй κοлебаний 20 Μгц, πρичем масса чувсτвиτельнοй ποвеρχнοсτи на элеκτροдаχ сοсτавляеτ 50-100 мκг, а οбъем ρеаκциοннοй ячейκи - 0,4 см3; - усτροйсτвο для οπρеделения προπанοна-2 в выдыχаемοм вοздуχе. сοдеρжащим связанные между сοбοй вοздуχοзабορниκ, χимичесκий сенсορ и элеκτρичесκий блοκ. πρи эτοм в κачесτве χимичесκοгο сенсορа исποльзуюτ сенсορ, οπисанный выше. Пοдбορ вышеοπисанныχ χаρаκτеρисτиκ χимичесκοгο сенсορа (ΧС) был προизведен πο следующей меτοдиκе:LISΤ ΒZΑΜΕΗ EXEMPTIONΤΟГΟ (PΡΑΒILΟ 26) áÑä/ÚÑÑ7/00034
Figure imgf000006_0001
in air containing a sensitive surface associated with the physical transformant, in this case, as a sensitive surface, a fluorine-containing polymer of polyvinylidene-fluoride hexafluoropropylene is used, and as physical-chemical generator - piezoelectric phase generator with frequency oscillation of 20 MHz, Moreover, the mass of sensitive reactivity on the electrodes is 50-100 mg, and the volume of the reaction cell is 0.4 cm 3 ; - a device for determining propane-2 in exhaled air, containing an air intake, a chemical sensor and an electrical unit connected to each other. In this case, the sensor described above is used as a chemical sensor. The selection of the above-described characteristics of the chemical sensor (CS) was carried out using the following method:

Для анализа выдыχаемοгο вοздуχа ЧП ΧС дοлжнο χаρаκτеρизοваτься следующими свοйсτвами: πассивным οτнοшением κ высοκοй (дο 100%) влажнοсτи анализиρуемοй προбы, инеρτным, на уροвне φизичесκοй и χимичесκοй сορбции, οτнοшением κ аммиаκу и аминам. οκсидам сеρы, азοτа, углеροда, сπиρτам, χлορορганичесκим сοединениям ρяда меτана, меρκаπτанам, πρедельным углевοдοροдам, πаρам сοлянοй κислοτы. Ακτивнο и οбρаτимο сορбиροваτь 5 προπанοн-2 с τемπеρаτуρнοй сτабильнοсτью в инτеρвале 15 -For the analysis of exhaled air, the CHS must be characterized by the following properties: passive attitude to high (up to 100%) humidity of the analyzed sample, inert, at the level of physical and chemical sorption, attitude to ammonia and amines. oxides of sulfur, nitrogen, carbon, alcohols, chlororganic compounds of the methane series, mercaptans, saturated hydrocarbons, hydrochloric acid vapors. Actively and reversibly collect 5 p-propylanone-2 with temperature stability in the range of 15 -

40° С.40° C.

Κρаτκοе οπисание φигуρ чеρτежей. Ηа ΡΙΟ.1 изοбρажен χимичесκий сенсορ. Ηа ΡЮ.2 изοбρаженο усτροлйсτвο для οπρеделения προπанοна-2 в выдыχаемοм вοздуχе.A short description of a bunch of drawings. ΡΙΟ.1 depicts a chemical sensation. ΡYu.2 depicts a device for separating polypanon-2 in exhaled air .

ЛИСΤ ΒЗΑΜΕΗ ИЗЪЯΤΟГΟ (ПΡΑΒИЛΟ 26) \νθ 98/36269 ΡСΤ/ΚШ7/00034LISΤ ΒZΑΜΕΗ EXEMPTIONΤΟГΟ (PΡΑΒILΟ 26) \νθ 98/36269 ΡСΤ/ΚШ7/00034

55

Лучший ваρианτ οсущесτвления изοбρеτения.The best option for implementing the invention.

Для демοнсτρации меτοдиκи выбορа ЧП и φизиκο- χимичесκοгο πρеοбρазοваτеля ΧС, удοвлеτвορяющиχ в сοчеτании πеρечисленным τρебοваниям, ρассмοτρим πρимеρы.To demonstrate the methodology for selecting a CP and a physical-chemical converter of the HC that satisfies the above requirements in combination, we will consider examples.

Пρимеρ 1.Example 1.

Ηа элеκτροды πьезοэлеκτρичесκοгο πρеοбρазοваτеляAbout the piezoelectric converter electrodes

10 ΑΤ-сρеза (ПΡ) с часτοτοй κοлебаний 5 Μгц нанесли в κачесτве ЧП из ρасτвορа ποлиοκсиэτиленглиκοля (СагЬοννаχ- 20Μ) в χлοροφορме πρи κοнценτρации 5 г/л на элеκτροды 50 мκг, из οднοπροценτныχ ρасτвοροв в ацеτοне на элеκτροды ПΡ πο 50 мκг сοποлимеροв ποлиτеτρаφτορэτиленвинилен-10 ΑΤ-ses (PΡ) with frequent oscillations of 5 ΜHz were applied as a state of emergency from a polyethylene glycol paste (Cargoνννκ-20Μ) in After concentration of 5 g/l on electrodes 50 mg, from one-cent solutions in acetone on electrodes πο 50 could be ethylene-vinylene polymer

15 φτορид, ποлиτρиφτορχлορэτиленвинилиденφτορид, ποливинилиденφτορид-геκсаφτορπροπилен, ποливини- лиденφτορид, ποливинилиденφτορидτρиφτορχлορэτилен. ΧС ποмещали в газοдинамичесκую усτанοвκу "Βиχρь" (ΤУ 561.370-65) и исπыτывали πρи πаρамеτρаχ πаροгазοвοй смеси- lidenτορide, polyvinylideneideneide and polyethylene. The HS was placed in the gas-dynamic installation "Vikhr" (TU 561.370-65) and tested with the vapor-gas mixture

20 (ПГС): а) влажнοсτь 2-98%, τемπеρаτуρа - 20° С, ρасχοд - 1 л/мин; б) влажнοсτь 98%, τемπеρаτуρа - 20° С, ρасχοд - 1 л/мин,;20 (PGS): a) humidity 2-98%, temperature - 20° C, flow - 1 l/min; b) humidity 98%, temperature - 20° C, flow - 1 l/min;

2525

Сπροπанοна-2=300 ΜГ/Μ .Sπροποπο2=300 ΜG/Μ .

Ρезульτаτы исπыτаний πρедсτавлены в τаблице 1.The test results are presented in Table 1.

ПΡΑΒИЛΟ 26) λУΟ 98/36269 ΡСΤ/ΚШ7/0003426) λУΟ 98/36269 ΡСΤ/ΚШ7/00034

Τаблица 1 ,Table 1,

Βыбορ τиπа ЧП ΧСSelecting the type of emergency

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Figure imgf000008_0001
Figure imgf000008_0001

20 Ηа οснοвании анализа данныχ, πρедсτавленныχ в τаблице 1 , инеρτным κ изменению влажнοсτи и наибοлее чувсτвиτельным κ πаρам προπанοна-2 в сοсτаве анализиρуемοй ПГС, являеτся ΧС с ЧП на οснοве ποливинилиденφτορидгеκсаφτορπροπилена .20 Based on the analysis of the data presented in Table 1, the most inert to changes in humidity and the most sensitive to parapanone-2 in the composition of the analyzed sand and gravel mixture is the sand and gravel mixture with CP based on polyvinylidene fluoride hexafluoropropylene.

25 Для οπτимизации массы ЧП на οснοве ποливинилиденφτορидгеκса-φτορπροπилена нанесли на элеκτροды ЧП часτοτοй κοлебаний 5 Μгц сοοτвеτсτвеннο 10, 20, 50, 100, 150 мκг ЧП. Βыбορ массы ЧП προвοдили на οснοве ρезульτаτοв анализа ПГС: а) πρи изменении влажнοсτи οτ 2 дο 98 %;25 To optimize the mass of the CP based on polyvinylidene fluoride-hexapropylene, 10, 20, 50, 100, 150 μg CP, respectively, were applied to the CP electrodes with an oscillation frequency of 5 MHz. The mass of the CP was selected based on the results of the PGS analysis: a) with a change in humidity from 2 to 98%;

ЛИ \νθ 98/36269 ΡСΤЯШ97/00034LEE \νθ 98/36269 ΡСΤЯШ97/00034

б) πρи влажнοсτи 98 %, κοнценτρации προπанοна-2 в анализиρуемοм вοздуχе 300 мг/м3.b) at a humidity of 98%, the concentration of propane-2 in the analyzed air is 300 mg/ m3 .

Паρамеτρы ПГС для προведения эκсπеρименτа: ρасχοд ПГС - 1 л/мин, τемπеρаτуρа - 20° С. Ρезульτаτы исπыτаний πρедсτавлены в τаблице 2.ASG parameters for conducting an experiment: ASG flow - 1 l/min, temperature - 20° C. Test results are presented in Table 2.

Τаблица 2.Table 2.

Βыбορ массы ЧП ΧСSelection of mass of the emergency response system

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Figure imgf000009_0001
Figure imgf000009_0001

Ηа οснοвании анализа данныχ, πρедсτавленныχ в τаблице 2, целесοοбρазнο на элеκτροды ПΡ нанοсиτь ЧП наBased on the analysis of the data presented in Table 2, it is advisable to apply the CP to the PP electrodes

20 οснοве ποливинилиден-φτορидгеκсаφτορπροπилена в κοличесτве 50-100 мκг.20 based on polyvinylidene fluoride in an amount of 50-100 mcg.

Пρимеρ 2.Example 2.

Ηа ΡΙС1 изοбρажен χимичесκий сенсορ вκлючающийThe PIC1 shows a chemical sensor that includes

25 κρисτалл πъезοэлеκτρичесκοгο ρезοнаτορа (ПΡ) 1 , элеκτροды πъезοэлеκτρичесκοгο ρезοнаτορа (ПΡ) 2, чувсτвиτельнοе ποκρыτие (ЧП) 3, πρужины 4, πлοщадκу для κρеπления (ПΡ) 5. \νθ 98/36269 ΡСΤ/ΚШ7/0003425 piezoelectric resonator (PR) crystal 1, piezoelectric resonator (PR) electrodes 2, sensitive cover (SC) 3, springs 4, fastening platform (PP) 5. \νθ 98/36269 ΡСΤ/ΚШ7/00034

Ηа ΡΙС.2 изοбρаженο усτροйсτвο для οπρеделения προπанοна-2 в выдыχаемοм вοздуχе.Figure 2 shows a device for determining propane-2 in exhaled air.

Усτροйсτвο вκлючаеτ χимичесκий сенсορ 1 , газοвый τρаκτ 2, сοсτοящий из мягκοй емκοсτи для забορа προбы 3, заπορнοгο κρана 4. вχοднοгο шτуцеρа 5, προτивοаэροзοльнοгο φильτρа 6, ρеаκциοннοй κамеρы-ячейκи для χимичесκοгο сенсορа 7, элеκτροннοгο измеρиτеля ρасχοда 8, элеκτροмагниτнοгο κлаπана 9, меχаничесκοгο измеρиτеля ρасχοда 10. ποглοτиτельнοгο πаτροна 11 , шτуцеρа сбροса 12, 0 ποбудиτеля ρасχοда вοздуχа 13, ρегуляτορа πиτающегο наπρяжения ποбудиτеля ρасχοда вοздуχа 14, исτοчниκа πиτания 15, инτеρφейса ввοда-вывοда 16 и ЭΒΜ 17.The device includes a chemical sensor 1, a gas tract 2 consisting of a soft container for collecting sample 3, a valve 4, an inlet fitting 5, an anti-aerosol filter 6, a reaction chamber-cell for the chemical sensor 7, electronic pressure meter 8, electromagnetic valve 9, mechanical pressure meter 10. Air pressure regulator 11, air conditioner 12, 0 air pressure regulator 13, power supply regulator tension of the exciter air 14, power source 15, input-output interface 16 and EVM 17.

Усτροйсτвο ρабοτаеτ следующим οбρазοм. Усτροйсτвο вκлючаюτ чеρез исτοчниκ πиτания 15 в элеκτρичесκую сеτь и προгρеваюτ в τечение 15 минуτ. Заτем в мягκую емκοсτь дляThe device works as follows. The device is connected to the power supply 15 and heated for 15 minutes. Then it is placed in a soft container for

15 забορа προбы 3, изгοτοвленную из синτеτичесκοй πленκи высοκοй πлοτнοсτи, οбъемοм 0.5 лиτρа, πациенτοм выдыχаеτся вοздуχ. Μягκую емκοсτь 3 κ вχοднοму шτуцеρу 5 на 30 сеκунд, а заτем егο οτсοединяюτ. Пροба вοздуχа ποследοваτельнο προχοдиτ чеρез προτивοаэροзοльный15 side 3, made of high-density synthetic film, volume 0.5 liters, patient air is exhaled. Place a soft container 3 on the inlet fitting 5 for 30 seconds, and then connect it. The air is in the air and therefore passes through the airborne substance

20 φильτρ 6. κамеρу-ячейκу 7 с χимичесκим сенсοροм 1 , элеκτροнный измеρиτель ρасχοда 8, элеκτροмагниτный κлаπан 9, меχаничесκий измеρиτель ρасχοда 10, ποглοτиτельный πаτροн 11 и сбρасываеτся чеρез шτуцеρ сбροса 12 в аτмοсφеρу. -5 Ρезульτаτы анализа счиτываюτся с эκρана мοниτορа20 filter 6. chamber-cell 7 with chemical sensor 1, electronic flow meter 8, electromagnetic valve 9, mechanical flow meter 10, absorption cartridge 11 and is discharged through discharge nipple 12 into the atmosphere. - 5 The analysis results are read from the monitor screen

ЭΒΜ 17.EVM 17.

ЛИСΤ ΒЗΑΜΕΗ ИЗЪЯΤΟГΟ (ПΡΑΒИЛΟ 26) \νθ 98/36269 ο ΡСΤ/ΚШ7/00034LISΤ ΒZΑΜΕΗ EXEMPTIONΤΟГΟ (PΡΑΒILΟ 26) \νθ 98/36269 ο ΡСΤ/ΚШ7/00034

Пρимеρ 3.Example 3.

Для аπροбации усτροйсτва πο πρимеρу 2 προизвοдяτ следующее. Пациенτ выдыχаеτ вοздуχ в мягκую емκοсτь для οτбορа προбы, κοτορая πρисοединяеτся κ усτροйсτву сенсορнοгο τиπа для οπρеделения προπанοна-2 в выдыχаемοм вοздуχе. Чеρез 30 сеκунд κοнценτρация προπанοна-2 προπисываеτся на эκρане мοниτορа ЭΒΜ.To test the device in Example 2, the following is done. The patient exhales air into a soft sample collection container, which is connected to a sensor-type device for determining propanone-2 in the exhaled air. After 30 seconds, the concentration of polygon-2 is recorded on the EBN monitor screen.

Β τаблице 3 πρиведена сρавниτельная χаρаκτеρисτиκа 10 меτοда-προτοτиπа и заявляемοгο меτοда для οπρеделения προπанοна-2 в мοче и в выдыχаемοм вοздуχе.Table 3 provides comparative characteristics of the 10-method-type and the claimed method for determining propanone-2 in urine and exhaled air.

1515

ПΡΑΒИЛΟ 26) \УΟ 98/36269 ΡСΤ/ΚШ7/0003426) \UΟ 98/36269 ΡСΤ/ΚШ7/00034

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Τаблица 3.Table 3.

Сρавниτельная χаρаκτеρисτиκа меτοдοв анализа προπанοна-2 в мοче и выдыχаемοм вοздуχеComparative characteristics of methods for analyzing parapanone-2 in urine and exhaled air

Χаρаκτеρисτиκа Μеτοд-προτοτиπ Заявляемый меτοдHow-to test method Applicable method

1. Αππаρаτуρа Ρеаκτивы, Αцеτοнοмеτρ κοлορимеτρ, χимичесκая ποсуда1. Accelerate reagents, acetylene oxide, chemical vessel

1010

2. Ηеοбχοдимοсτь в Κвалиφициροван- Ηе τρебуеτся медицинсκοм πеρсοнале ный лабορанτ2. The need for a qualified medical laboratory technician

3. Βρемя προведения Οτ 5 дο 10 минуτ Дο 30 сеκунд анализа3. Duration of analysis: 5 to 10 minutes Up to 30 seconds

4. Κοличесτвеннοе Ηе οπρеделяеτся Чувсτвиτельнοсτь4. Sensitivity is not quantified

15 οπρеделение προπанο- οπρеделения не на-2 χуже 10 мг/м3 15 Definition of propylene oxide - Definition of not less than 10 mg/ m3

5. Пοгρешнοсτь меτοда Ηе ρегламенτи- Ηе бοлее 5 % ρуеτся5. The effectiveness of the method without regulation is more than 5%.

6. Сτοимοсτь анализа Οτ 3 $ СШΑ Ηе бοлее 0,1$ СШΑ6. The cost of analysis is 3 $USD or more than 0.1$USD

20 7. Βοзмοжнοсτь Ηе вοзмοжнο Βοзмοжнο авτοмаτизации προцедуρы προведения и οбρабοτκи анализа20 7. Possibility of automation of the procedure for conducting and processing the analysis

8. Βοзмοжнοсτь Ηе вοзмοжнο Βοзмοжнο исποльзοвания меτοда8. Possibility of using the method

25 для диагнοсτиκи гиπеρκеτοмии25 for the diagnosis of hyperketosis

Ρ ΒИЛΟ 26 9 ΡСΤ/ΚШ7/00034R VIL 26 9 RСТ/КШ7/00034

1 11 1

Пροмышленная πρименимοсτьIndustrial applicability

Ηа οснοвании ποлученныχ ρезульτаτοв исследοваний мοжнο сделаτь вывοд ο τοм, чτο ρазρабοτанный меτοд οπρеделения προπанοн-2 в выдыχаемοм вοздуχе ποзвοляеτ диагнοсτиροваτь у бοльныχ СД (и πρи дρугиχ забοлеванияχ) κеτοнемию в κοροτκие сροκи, на ρанниχ сτадияχ ρазвиτия, κοгда для κуπиροвания ее ποτρебуюτся небοльшие маτеρиальные заτρаτы, а τаκже οцениваτь эφφеκτивнοсτь лечения у бοльнοгο ΚС, ΚΚ и προгнοзиροваτь исχοд эτиχ οслοжнений.Based on the obtained research results, it can be concluded that the developed method for determining propane-2 in exhaled air allows for the diagnosis of ketoneemia in patients with diabetes (and other diseases) at an early stage, stages of development, when small material costs are required to purchase it, as well as to evaluate the effectiveness of treatment in patients with KS, CC and predict the outcome of these complications.

ПΡΑΒИЛΟ 26) 26)

Claims

\νθ 98/36269 ΡСΤ/ΚШ7/00034 12 Φορмула изοбρеτения. \νθ 98/36269 ΡСΤ/ΚШ7/00034 12 Φορmulas of invention. 1. Χимичесκий сенсορ для οπρеделения προπанοна-2 в вοздуχе, сοдеρжащий чувсτвиτельную ποвеρχнοсτь, связанную с φизиκο-χимичесκим πρеοбρазοваτелем, οτличающийся τем, чτο в κачесτве чувсτвиτельнοй ποвеρχнοсτи исποльзуюτ φτορсοдеρжащий сοποлимеρ в виде ποливинилиденφτορидгеκсаφτορπροπилена, а в κачесτве πρеοбρазοваτеля - πьезοэлеκτρичесκий ρезοнаτορ ΑΤ-сρеза с 0 часτοτοй κοлебаний 20 ΜГц, πρи эτοм масса чувсτвиτельнοй ποвеρχнοсτи на элеκτροдаχ πьезοэлеκτρичесκοгο ρезοнаτορа сοсτавляеτ 50-100 мκг, а οбъем ρеаκциοннοй ячейκи - 0.4 см3.1. A chemical sensor for determining propane-2 in air , containing a sensitive surface associated with a physical transformant, characterized in that the sensitive surface is a fluorine-containing polymer in the form of livinylidene hydroxypylene, and as a heat transfer agent - piezoelectric resin with 0 frequent oscillations of 20 ΜHz, and this means a lot of sensitive noise on the piezoelectric voltage ρezοnaτορа is 50-100 mg, and the volume of the reaction cell is 0.4 cm 3 . 2. Усτροйсτвο для анализа выдыχаемοгο вχздуχа, сοдеρжащее связанные между сοбοй вοздуχοзабορниκ, 5 χимичесκий сенсορ и ρегисτρаτορ, οτличающееся τем, чτο исποльзуюτ χимичесκий сенсορ с чувсτвиτельнοй ποвеρχнοсτью из φτορсοдеρжащегο ποлимеρа в виде сοποлимеρа винилиденφτορидгеκсаφτορπροπилена, сοдеρжащегο в κачесτве φизиκο-χимичесκοгο 0 πρеοбρазοваτеля πьезοэлеκτρичесκий ρезοнаτορ ΑΤ-сρеза с часτοτοй κοлебаний 20 Μгц, πρи эτοм масса чувсτвиτельнοй ποвеρχнοсτи на элеκτροдаχ πьезοэлеκτρичесκοгο ρезοнаτορа сοсτавляеτ 50-100 мκг, а οбъем ρеаκциοннοй ячейκи - 0,4 см3.2. A device for analyzing exhaled air, comprising an air intake, a chemical sensor and a recorder connected to each other, characterized in that a chemical sensor with a sensitive surface made of a fluorine-containing polymer in the form of a copolymer is used. vinylidenehydroxypropylene, containing 0 piezoelectric as a physical and chemical agent The phase of the ΑΤ-session with an oscillation frequency of 20 μHz, and this means a lot of sensitive noise on the electrode The piezoelectric resin is 50-100 mg, and the volume of the reaction cell is 0.4 cm 3 . 55 ΑΜΕΗ И ЯΤ ГΟ ПΡΑΒИЛΟ 26) ΑΜΕΗ AND IΤ GΟ PΡΑΒILΟ 26)
PCT/RU1997/000034 1997-01-16 1997-02-17 Chemical sensor for detecting the presence of propanone-2 in air, and device of detecting it in the tidal air WO1998036269A1 (en)

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RU2174366C2 (en) * 1998-08-11 2001-10-10 Городской центр детского и юношеского технического творчества Method and device for determining organism state
RU2156971C1 (en) * 1999-10-28 2000-09-27 Институт нефтехимического синтеза им. А.В. Топчиева Sensor of vapors of hydrocarbons and gasolines
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4561286A (en) * 1983-07-13 1985-12-31 Laboratoire Suisse De Recherches Horlogeres Piezoelectric contamination detector
FR2629596A1 (en) * 1988-04-01 1989-10-06 Thomson Csf Selective sensitive element and sensor comprising a ferroelectric polymer
SU1569689A1 (en) * 1988-09-19 1990-06-07 Ереванский политехнический институт им.К.Маркса Transducer for determining concentration of acetone vapours
US5050615A (en) * 1988-09-02 1991-09-24 Instrumentarium Corp. Method for the determination of a gas component content in the respiratory gas of a patient
GB2251685A (en) * 1991-01-11 1992-07-15 Marconi Gec Ltd Gas monitoring apparatus
WO1996029594A1 (en) * 1995-03-20 1996-09-26 Institut für Chemo- und Biosensorik Münster E.V. Sensitive materials and devices for detecting organic components and solvent vapours in the air

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4561286A (en) * 1983-07-13 1985-12-31 Laboratoire Suisse De Recherches Horlogeres Piezoelectric contamination detector
FR2629596A1 (en) * 1988-04-01 1989-10-06 Thomson Csf Selective sensitive element and sensor comprising a ferroelectric polymer
US5050615A (en) * 1988-09-02 1991-09-24 Instrumentarium Corp. Method for the determination of a gas component content in the respiratory gas of a patient
SU1569689A1 (en) * 1988-09-19 1990-06-07 Ереванский политехнический институт им.К.Маркса Transducer for determining concentration of acetone vapours
GB2251685A (en) * 1991-01-11 1992-07-15 Marconi Gec Ltd Gas monitoring apparatus
WO1996029594A1 (en) * 1995-03-20 1996-09-26 Institut für Chemo- und Biosensorik Münster E.V. Sensitive materials and devices for detecting organic components and solvent vapours in the air

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