EP0282332A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Method of detecting bitter or odor substances and apparatus therefor
Assignee: Scinics Corp
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Filing: 1988-03-11
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Granted: —
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Expires: 2008-03-11
Abstract
Abstract Disclosed are a method of detecting bitter or odor substances, which method comprises adsorbing the bitter or odor substances onto an immobilized bilayer film and directly, quantitatively, separately, and selectively detecting the adsorbed bitter or odor substances, and an apparatus therefor.
Inventors
- 👤 Yoshio Okahata
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 04:40
CPC Classifications
G; G01; G01N; G01N29/00; G01N29/02; G01N29/036; G01N27/00; G01N27/26; G01N27/28; G01N27/30; G01N27/327; G01N2291/00; G01N2291/02; G01N2291/025; G01N2291/0256; Y; Y10; Y10T; Y10T436/00; Y10T436/25; Y10T436/25375; Y10T436/255
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
30 words
A method of detecting bitter or odor substances, which method comprises adsorbing the bitter or odor substances onto an immobilized bilayer film and detecting the adsorbed bitter or odor substances.
Claim 2
Independent Claim
30 words
A method of detecting bitter or odor substances, which method comprises adsorbing the bitter or odor substances onto an immobilized bilayer film and detecting the adsorbed bitter or odor substances.
Claim 3
Dependent Claim
48 words
A method of detecting bitter or odor substances as claimed in Claim 1, wherein the bitter or odor substances are adsorbed onto the immobilized bilayer film and the resulting changes due to adsorption in membrane potential and/or membrane resistance are measured to detect the bitter or odor substances.
Claim 4
Dependent Claim
70 words
A method of detecting bitter or odor substances as claimed in Claim 1, wherein the bitter or odor substances are adsorbed onto the immobilized bilayer film cast on an electrode of a crystal oscillator or a piezoelectric crystal, and decreased amounts in frequency of the crystal oscillator or the piezoelectric crystal due to the adsorption of the bitter or odor substances are measured to detect the bitter or odor substances.
Claim 5
Independent Claim
47 words
An apparatus for detecting bitter or odor substances, which apparatus comprises an immobilized bilayer film to adsorb the bitter or odor substances thereonto and a means of measuring the resulting changes due to the adsorption of the bitter or odor substances in membrane potential and/or membrane resistance.
Claim 6
Independent Claim
47 words
An apparatus for detecting bitter or odor substances, which apparatus comprises an immobilized bilayer film to adsorb the bitter or odor substances thereonto and a means of measuring the resulting changes due to the adsorption of the bitter or odor substances in membrane potential and/or membrane resistance.
Claim 7
Dependent Claim
84 words
An apparatus for detecting bitter or odor substances as claimed in Claim 4, wherein the means of measuring the resulting changes due to the adsorption of the bitter or odor substances in membrane potential and/or membrane resistance comprises a means of positioning the immobilized bilayer film between an inner aqueous phase free of the bitter or odor substances and an outer aqueous phase containing the bitter or odor substances, and a galvanostat having measuring probes inserted into the inner and outer aqueous phases respectively.
Claim 8
Independent Claim
62 words
An apparatus for detecting bitter or odor substances, which apparatus comprises a frequency measuring means composed of a crystal oscillator or a piezoelectric crystal and an immobilized bilayer film cast on an electrode of the crystal oscillator or the piezoelectric crystal, decreased amounts of frequency due to the adsorption of the bitter or odor substances onto the immobilized bilayer film being measured.
Claim 9
Independent Claim
62 words
An apparatus for detecting bitter or odor substances, which apparatus comprises a frequency measuring means composed of a crystal oscillator or a piezoelectric crystal and an immobilized bilayer film cast on an electrode of the crystal oscillator or the piezoelectric crystal, decreased amounts of frequency due to the adsorption of the bitter or odor substances onto the immobilized bilayer film being measured.
References Cited (Backward Citations)
No citation records indexed.
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