Reagent alcohol test strip device

• US 4,962,025 A
• Filed: 03/17/1987
• Issued: 10/09/1990
• Est. Priority Date: 01/02/1986
• Status: Expired due to Term

• Current Assignee: AlcoPro, Inc., Aristech Chemical Corporation (Energy Transfer Operating, L.P.)
• Original Assignee: Mervin J. Moldowan
• Inventors: Moldowan, Mervin J.
• Primary Examiner(s): Marcus, Michael S.
• Assistant Examiner(s): Johnston, Jill
• Application Number:
  US07/028,022
• Time in Patent Office: 1,302 Days
• Field of Search: 422/55, 422/56, 422/57, 422/58, 436/131, 436/132, 436/170, 435/25, 435/805, 435/4
• US Class Current: 435/25
• CPC Class Codes: C12Q 1/26 involving oxidoreductase
• CPC Class Codes: G01N 33/523 the element being adapted for a specific analyte
• CPC Class Codes: Y10S 435/805 Test papers
• CPC Class Codes: Y10T 436/203332 Hydroxyl containing
• CPC Class Codes: Y10T 436/204165 Ethanol

Abstract

A new method and apparatus for detection and analysis of substrates in a sample is described. The apparatus consists of a rigid or semi-rigid strip having a reaction site, a sample collector or metering site and color blocks to indicate the presence or amount of a substance in the sample. In another embodiment of the apparatus, useful for analysis of gases, a vessel is provided to wet the reaction site and prepare this site for analysis. The components of this device are all located on the same strip and bound together as a one piece test kit.

Claims

1. A test strip for the detection and determination of the concentration of alcohol in samples of fluids comprising:

(a) a substrate to hold various pieces of a test strip in place,

(b) a collection site attached to one end of the substrate consisting of a suitable material to absorb a sample to transfer to a reaction site,

(c) a reaction site attached to the substrate in spaced relationship to the collection site, said reaction site containing alcohol metabolizing enzymes that will catalyze the oxidation of an alcohol and further containing additional, enzymes and reagents that will provide a visible response of a color change upon reaction with an alcohol, and

(d) a color chart, respresenting specific alcohol concentrations, attached to the substrate to permit comparison of the color of the reaction site to determine the concentration of an alcohol in a fluid test sample.

2. The test strip of claim 1, where the color chart comprises two sites, one site on a reverse side of the substrate and another site adjacent the reaction site, and the substrate being bendable to permit the color chart to encompass the reaction site on three sides.

3. The test strip of claim 1, where the color chart is on a reverse side of the substrate and the substrate is perforated so the substrate would bend as to permit the color chart to be adjacent to the reaction site.

4. The test strip of claim 1, where the color chart is on a reverse side of the substrate and the substrate is divided then hinged so the substrate would bend as to permit the color chart to be adjacent to the reaction site;

5. The test strip of claim 1, where the collection site consists of material selected from the group consisting of polyurethane and cellulose.

6. The test strip of claim 1, where the substrate is sufficiently rigid to support the collection site, reaction site and color chart in place but flexible enough to permit the collection site to make contact with the reaction site.

7. The test strip of claim 1, where the substrate comprises material selected from the group consisting of paper and polystyrene;

8. The test strip of claim 1, where the alcohol metabolizing enzyme is alcohol oxidase.

9. The test strip for the detection and determination of the concentration of alcohol in samples of fluids comprising:

(a) a substrate to hold various pieces of test strip in place,

(b) a vessel attached to one end of the substrate positioned and constructed to contain wetting agents to be transferred to a reaction site to promote absorption of alcohol from a gaseous test sample,

(c) a reaction site attached to the substrate in spaced relationship to the vessel and foldable into contact with the vessel, said reaction site containing alcohol metabolizing enzymes that will catalyze the oxidation of an alcohol and further containing additional enzymes and reagents that will provide a visible response of a color change upon reaction with an alcohol and,

(d) a color chart, representing specific alcohol concentrations, attached to the substrate to permit comparision of the color of the reaction site to determine the concentration of an alcohol in a gaseous test sample.

10. The test strip of claim 9, where the color chart comprises two sites, one site on a reverse side of the substrate and another site adjacent the reaction site, and the substrate being bendable to permit the color chart to encompass the reaction site on three sides.

11. The test strip of claim 9, where the color chart is on a reverse side of the substrate and the substrate is perforated so the substrate will bend as to permit the color to be adjacent to the reaction site.

12. The test strip of claim 9, where the color chart is on a reverse side of the substrate and the substrate is divided then hinged so the substrate will bend as to permit the color to be adjacent to the reaction site.

13. The test strip of claim 9, where the substrate is sufficiently rigid to support the vessel, reaction and color chart in place but flexible enough to permit the collection site to make contact with the reaction site.

14. The test strip of claim 9, where the substrate comprises material selected from the group consisting of paper and polystyrene.

15. The test strip of claim 9, where the alcohol metabolizing enzyme is alcohol oxidase.

16. A test strip for the detection and determination of the concentration of alcohol in samples of fluids, comprising:

(b) a collection site attached to one end of the substrate consisting of a suitable material to absorb a sample to transfer to a reaction site,

(c) a vessel attached to the substrate in spaced relationship to the collection site and positioned and constructed to contain reagents for the detection of alcohol on a reaction site,

(d) a reaction site attached to the substrate in spaced relationship to and foldable into contact with the collection site and the vessel, said reaction site containing alcohol metabolizing enzymes that will catalyze the oxidation of an alcohol and further containing additional enzymes and reagents that will provide a visible response of a color change upon reaction with an alcohol, and

(e) a color chart, representing specific alchol concentrations, attached to the substrate to permit comparison of the color of the reaction site to determine the concentration of an alcohol in a fluid test sample.

17. The test strip of claim 16, where the color chart comprises two sites, one site on a reverse side to the substrate and another site of substrate and another site adjacent to the reaction site, and the substrate being bendable to permit the color chart to encompass the reaction site on three sides.

18. The test strip of claim 16, where the color chart is on a reverse side of the substrate the substrate is perforated so the substrate will bend as to permit the color chart to be adjacent to the reaction site.

19. The test strip of claim 16, where the color chart is on a reverse side of the substrate the substrate will bend as to permit the color chart to be adjacent to the substrate is divided then hinged so the substrate will bend as to permit the color chart to be adjacent to the reaction site.

20. The test strip of claim 16, where the collection site consists of material selected from the group consisting of polyurethane and cellulose.

21. The test strip of claim 16, where the substrate is sufficiently rigid to support the vessel, collection site, reaction site and color chart in place but flexible enough to permit the collection site to make contact with the combined reaction and detection site.

22. The test strip of claim 16, where the substrate comprises material selected from the group consisting of paper and polystyrene.

23. The test strip of claim 16, where the alcohol metabolizing enzyme is alcohol oxidase.