Mass produced, low cost, portable test kit for the detection and identification of chemical and biological agents
First Claim
Patent Images
1. A portable detection kit for identifying the presence of a target chemical or biological agent, comprising:
- a first homogenous suspension of a first dry chemical powder colorimetric reagent (CR) mixed with an inert liquid diluent, deposited and dried onto at least a first portion of a solid support article;
a swab device pre-wetted with a solvent to facilitate the collection and transfer of a suspected chemical or biological agent residue to the coated solid support article and upon contacting the residue with the coated solid support article and mixing all components together on the coated solid support article, a known visual colorimetric indication is produced identifying a class of an unknown target chemical or biological agent present in the suspect residue; and
a light, air, and moisture proof package into which the coated solid support article and the swab device are individual hermetically sealed prior to use.
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Accused Products
Abstract
A highly portable, paper and swab-based detection kit is provided for identifying chemical and biological agents. A method of mass manufacture providing low cost kits with long term commercial shelf life and a method of use is also provided.
99 Citations
32 Claims
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1. A portable detection kit for identifying the presence of a target chemical or biological agent, comprising:
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a first homogenous suspension of a first dry chemical powder colorimetric reagent (CR) mixed with an inert liquid diluent, deposited and dried onto at least a first portion of a solid support article; a swab device pre-wetted with a solvent to facilitate the collection and transfer of a suspected chemical or biological agent residue to the coated solid support article and upon contacting the residue with the coated solid support article and mixing all components together on the coated solid support article, a known visual colorimetric indication is produced identifying a class of an unknown target chemical or biological agent present in the suspect residue; and a light, air, and moisture proof package into which the coated solid support article and the swab device are individual hermetically sealed prior to use. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A method of providing a portable detection kit for identifying the presence of a target chemical or biological agent, comprising:
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mixing a homogenous suspension of a dry chemical powder colorimetric reagent (CR) with an inert liquid diluent; depositing the homogeneous suspension onto a solid support article; drying the homogeneous suspension to coat the solid support article; pre-wetting a swab device with a solvent to facilitate the collection and transfer of a suspected chemical or biological agent residue to the coated solid support article and upon contacting the residue with the coated solid support article and mixing all components together on the solid support article, a known visual colorimetric indication is produced thereby identifying a class of an unknown target chemical or biological agent present in the suspect residue; and hermetically sealing the coated solid support article and the swab device in a light, air, and moisture proof package prior to use. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32)
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Specification