GB1203126A - Electronic olfactory detector - Google Patents
Electronic olfactory detectorInfo
- Publication number
- GB1203126A GB1203126A GB51597/68A GB5159768A GB1203126A GB 1203126 A GB1203126 A GB 1203126A GB 51597/68 A GB51597/68 A GB 51597/68A GB 5159768 A GB5159768 A GB 5159768A GB 1203126 A GB1203126 A GB 1203126A
- Authority
- GB
- United Kingdom
- Prior art keywords
- diode
- chloranil
- ctc
- junction
- phenazine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000000463 material Substances 0.000 abstract 7
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 abstract 6
- UGNWTBMOAKPKBL-UHFFFAOYSA-N tetrachloro-1,4-benzoquinone Chemical compound ClC1=C(Cl)C(=O)C(Cl)=C(Cl)C1=O UGNWTBMOAKPKBL-UHFFFAOYSA-N 0.000 abstract 6
- VEPOHXYIFQMVHW-XOZOLZJESA-N 2,3-dihydroxybutanedioic acid (2S,3S)-3,4-dimethyl-2-phenylmorpholine Chemical compound OC(C(O)C(O)=O)C(O)=O.C[C@H]1[C@@H](OCCN1C)c1ccccc1 VEPOHXYIFQMVHW-XOZOLZJESA-N 0.000 abstract 5
- 235000000177 Indigofera tinctoria Nutrition 0.000 abstract 5
- PCNDJXKNXGMECE-UHFFFAOYSA-N Phenazine Natural products C1=CC=CC2=NC3=CC=CC=C3N=C21 PCNDJXKNXGMECE-UHFFFAOYSA-N 0.000 abstract 5
- 229940097275 indigo Drugs 0.000 abstract 5
- COHYTHOBJLSHDF-UHFFFAOYSA-N indigo powder Natural products N1C2=CC=CC=C2C(=O)C1=C1C(=O)C2=CC=CC=C2N1 COHYTHOBJLSHDF-UHFFFAOYSA-N 0.000 abstract 5
- CBCKQZAAMUWICA-UHFFFAOYSA-N 1,4-phenylenediamine Chemical compound NC1=CC=C(N)C=C1 CBCKQZAAMUWICA-UHFFFAOYSA-N 0.000 abstract 3
- 239000003795 chemical substances by application Substances 0.000 abstract 3
- 230000015572 biosynthetic process Effects 0.000 abstract 2
- 239000004020 conductor Substances 0.000 abstract 2
- GNBHRKFJIUUOQI-UHFFFAOYSA-N fluorescein Chemical compound O1C(=O)C2=CC=CC=C2C21C1=CC=C(O)C=C1OC1=CC(O)=CC=C21 GNBHRKFJIUUOQI-UHFFFAOYSA-N 0.000 abstract 2
- 239000007788 liquid Substances 0.000 abstract 2
- PCCVSPMFGIFTHU-UHFFFAOYSA-N tetracyanoquinodimethane Chemical compound N#CC(C#N)=C1C=CC(=C(C#N)C#N)C=C1 PCCVSPMFGIFTHU-UHFFFAOYSA-N 0.000 abstract 2
- 239000002841 Lewis acid Substances 0.000 abstract 1
- 239000002879 Lewis base Substances 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 230000001419 dependent effect Effects 0.000 abstract 1
- 230000008014 freezing Effects 0.000 abstract 1
- 238000007710 freezing Methods 0.000 abstract 1
- 238000004817 gas chromatography Methods 0.000 abstract 1
- 238000005286 illumination Methods 0.000 abstract 1
- 150000007517 lewis acids Chemical class 0.000 abstract 1
- 150000007527 lewis bases Chemical class 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000012544 monitoring process Methods 0.000 abstract 1
- 239000011368 organic material Substances 0.000 abstract 1
- 238000003909 pattern recognition Methods 0.000 abstract 1
- 239000004065 semiconductor Substances 0.000 abstract 1
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
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/12—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid, for detecting components in the fluid
- G01N27/125—Composition of the body, e.g. the composition of its sensitive layer
- G01N27/126—Composition of the body, e.g. the composition of its sensitive layer comprising organic polymers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/62—Detectors specially adapted therefor
- G01N30/64—Electrical detectors
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K99/00—Subject matter not provided for in other groups of this subclass
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Electrochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
1,203,126. Semi-conductor gas -detectors. J. E. MEINHARD. 31 Oct., 1968, No. 51597/68. Heading H1K. [Also in Division G1] A sensor for detecting the molecular components of a smell consists of at least one organic rectifying diode with its junction exposed to the olfactory agent and with means for monitoring the junction characteristic. The diode has two layers of different organic materials in contact and can be of PP<SP>+</SP>, PN or NN<SP>+</SP> form. Many Lewis bases are N-type conductors and many Lewis acids are P-type conductors. Examples of N- and P-type materials are given. Specific diode combinations are: phenazine vs the charge transfer complex (CTC) of chloranil and p-phenylenediamine; indigo vs chloranil; indigo vs CTC chloranil and p-phenylenediamine; chloranil vs CTC chloranil and p-phenylenediamine; indigo vs fluorescein; phenazine vs CTC tetracyanoquinodimethane and triethylamine; phenazine vs fluorescein; phenazine vs indigo; phenazine vs CTC chloranil and 2: 5-dimethoxyaniline; and indigo vs CTC tetracyanoquinodimethane and triethylamine. The two superposed layers may be sandwiched between planar electrodes or between coaxial cylindrical electrodes; one of the electrodes and the organic body is multiply apertured to allow access of the olfactory agent to the junction. With the cylindrical device the olfactory agent may be fed through the central tube. Manufacture of the diodes is described with detail relevant to formation of the electrodes, the body, and to the formation of the apertures to expose the junction. Response of the sensor is dependent on concentration of the molecular entities detected, different junction combinations respond differently to different molecular entities, and sensors with identical junction combinations may respond differently to molecular entities if the sensors are differentially heated or illuminated. Fig. 5 shows an arrangement of different sensors held at the same temperature and exposed to the same " atmosphere " (liquid or gaseous). The current measured by ammeter 20 gives an indication of the total content of material detected whereas the components present are identified by comparing the responses of each diode with a diode 25 chosen as a reference. The reference diode may, as shown, be covered with semipermeable material 36 so that it cannot respond to certain entities. Diode 29 is shown illuminated to respond most strongly to particular molecular entities by suitable choice of wavelength of illumination. A diode may be made more responsive to certain materials by immersing itin a liquid which selectively removes these materials from a multicomponent gas stream. Alternatively particular materials may be selectively applied by freezing out or by gas chromatography. The sensor array is calibrated with known quantities of known materials. In modified circuits a bridge with backing potentials may be used to give more linear response or the circuit illustrated may be modified by the use of individual potentiometers to replace resistors 30-34. In advanced systems analogue to digital conversion may be used to feed information to pattern recognition units and display systems or to operate alarms.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB51597/68A GB1203126A (en) | 1968-10-31 | 1968-10-31 | Electronic olfactory detector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB51597/68A GB1203126A (en) | 1968-10-31 | 1968-10-31 | Electronic olfactory detector |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1203126A true GB1203126A (en) | 1970-08-26 |
Family
ID=10460647
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB51597/68A Expired GB1203126A (en) | 1968-10-31 | 1968-10-31 | Electronic olfactory detector |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1203126A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2186091A (en) * | 1986-02-03 | 1987-08-05 | Atomic Energy Authority Uk | Semiconductor gas sensor |
EP0251934A2 (en) * | 1986-07-03 | 1988-01-07 | Commissariat A L'energie Atomique | Method and apparatus for detecting molecular or ionic species |
CN115236160A (en) * | 2022-07-13 | 2022-10-25 | 华中科技大学 | Olfactory perception method based on field effect transistor |
-
1968
- 1968-10-31 GB GB51597/68A patent/GB1203126A/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2186091A (en) * | 1986-02-03 | 1987-08-05 | Atomic Energy Authority Uk | Semiconductor gas sensor |
EP0251934A2 (en) * | 1986-07-03 | 1988-01-07 | Commissariat A L'energie Atomique | Method and apparatus for detecting molecular or ionic species |
FR2601136A1 (en) * | 1986-07-03 | 1988-01-08 | Commissariat Energie Atomique | METHOD AND DEVICE FOR DETECTING MOLECULAR OR IONIC SPECIES |
EP0251934A3 (en) * | 1986-07-03 | 1990-05-09 | Commissariat A L'energie Atomique | Method and apparatus for detecting molecular or ionic species |
CN115236160A (en) * | 2022-07-13 | 2022-10-25 | 华中科技大学 | Olfactory perception method based on field effect transistor |
CN115236160B (en) * | 2022-07-13 | 2023-12-19 | 华中科技大学 | Olfactory sensation method based on field effect transistor |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |