MX9702850A - Detector quimico con barrera de difusion. - Google Patents
Detector quimico con barrera de difusion.Info
- Publication number
- MX9702850A MX9702850A MX9702850A MX9702850A MX9702850A MX 9702850 A MX9702850 A MX 9702850A MX 9702850 A MX9702850 A MX 9702850A MX 9702850 A MX9702850 A MX 9702850A MX 9702850 A MX9702850 A MX 9702850A
- Authority
- MX
- Mexico
- Prior art keywords
- electrodes
- diffusion barrier
- sensor
- gas
- chemical sensor
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/416—Systems
- G01N27/49—Systems involving the determination of the current at a single specific value, or small range of values, of applied voltage for producing selective measurement of one or more particular ionic species
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/403—Cells and electrode assemblies
- G01N27/404—Cells with anode, cathode and cell electrolyte on the same side of a permeable membrane which separates them from the sample fluid, e.g. Clark-type oxygen sensors
- G01N27/4045—Cells with anode, cathode and cell electrolyte on the same side of a permeable membrane which separates them from the sample fluid, e.g. Clark-type oxygen sensors for gases other than oxygen
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Molecular Biology (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Measuring Oxygen Concentration In Cells (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Hybrid Cells (AREA)
Abstract
Se describe un detector electroquímico amperométrico de velocidad de difusion limitada. El detector tiene por lo menos dos electrodos, un circuito externo conectado a los electrodos, un electrolito capaz de conducir la carga ionica entre los electrodos y una barrera de difusion coextensa con, o que cubre uno de los electrodos, la barrera de difusion consiste de una membrana porosa que contiene dentro de los poros de la membrana una fase líquida de baja presion de vapor, en la cual un gas a ser detectado es soluble. También se proveen respiradores, indicadores de la exposicion del personal e indicadores ambientales, también como un método para detectar la presencia del gas en el aire y un método para preparar el detector.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US32875094A | 1994-10-24 | 1994-10-24 | |
| PCT/US1995/011303 WO1996012949A1 (en) | 1994-10-24 | 1995-09-06 | Chemical sensor with diffusion barrier |
| US328750 | 2002-12-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| MX9702850A true MX9702850A (es) | 1997-07-31 |
| MXPA97002850A MXPA97002850A (es) | 1997-12-01 |
Family
ID=
Also Published As
| Publication number | Publication date |
|---|---|
| WO1996012949A1 (en) | 1996-05-02 |
| EP0788597A1 (en) | 1997-08-13 |
| JPH10507831A (ja) | 1998-07-28 |
| KR970707439A (ko) | 1997-12-01 |
| BR9509481A (pt) | 1997-09-30 |
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