Chemistry: molecular biology and microbiology – Measuring or testing process involving enzymes or... – Involving antigen-antibody binding – specific binding protein...
Patent
1997-05-06
1999-11-09
Housel, James C.
Chemistry: molecular biology and microbiology
Measuring or testing process involving enzymes or...
Involving antigen-antibody binding, specific binding protein...
435 79, 435 71, 436174, G01N 3353, G01N 100
Patent
active
059812044
ABSTRACT:
A method and a buffer solution are set forth for testing for cannabinoid analytes extracted form a hair sample using enzyme linked immunosorbant assay (ELISA). The method includes preparation of a hair extract cocktail using an inorganic base and aliphatic alcohol and thereafter adding the buffer according to the present invention including at least one of (a) a phosphate buffer, (b) proteinaceous substance, (c) a non-ionic surfactant and (d) a polyhydric alcohol. The buffered solution is evaporated and analyzed using ELISA. By using ELISA to determine clearly negative samples, expensive confirmatory testing can be reserved for only those samples determined to be not clearly negative.
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Brown W. Craig
Johnson Ted Donald
Kelly Raymond C.
Devi S.
Housel James C.
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