The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 20, 2002
Filed:
May. 30, 2000
Wen H. Wu, Elkhart, IN (US);
Integrated Biomedical Technology, Inc., Elkhart, IN (US);
Abstract
A composition, method, and device for quantitatively determining the concentration of an aldehyde in a sample are disclosed. The device includes a test pad having a suitable carrier matrix incorporating an indicator reagent composition capable of interacting with the aldehyde to produce a detectable and measurable response for aldehyde concentration over a range of 0% to over 4%, by weight of the sample. An indicator reagent composition contains: (a) a protein, (b) an amine, (c) a color indicator, (d) preferably a neutral, nonionic polymer, such as a water-soluble cellulose polymer, and (e) a carrier. An indicator reagent composition is incorporated into a carrier matrix, like filter paper, to provide a test pad useful in a dry phase aldehyde assay of a sample, especially for samples containing a high concentration of glutaraldehyde or formaldehyde.