Chemistry: analytical and immunological testing – Involving an insoluble carrier for immobilizing immunochemicals – Carrier is organic
Patent
1995-05-03
1997-10-21
Scheiner, Toni R.
Chemistry: analytical and immunological testing
Involving an insoluble carrier for immobilizing immunochemicals
Carrier is organic
422 58, 422 61, 422 681, 436164, 436165, 436514, 436518, 436519, 436520, 436524, 436527, 436528, 436529, 436534, 436805, 436808, 436809, G01N 33546, G01N 2100, G01N 2103, G01N 2175
Patent
active
056795840
ABSTRACT:
A method for detecting a target substance which includes collecting a substance sample; introducing the substance sample into a substance card having at least one reagent responsive to the presence of the target substance and having a light-transmissive chamber; inserting the substance card into a substance detector device having a photosensor and adapted to receive the substance card; mixing the substance sample with the reagents for a preselected mixing period, thus producing a measurand having a target substance reaction; streaming the measurand through the light-transmissive chamber and illuminating the measurand with a quantity of light for a selectable analysis period, an optical characteristic of the measurand can be measured with the photosensor; and selecting the target substance reaction as a positive reaction or a negative reaction, responsive to the optical characteristic. If the target substance reaction is a negative reaction, the device operator is signalled thereof. On the other hand, if the target substance reaction is the positive reaction, the streaming, illuminating, measuring, and selecting steps are repeated for a selectable number of repetitions. If the target substance reaction remains positive after exhausting the selectable number of repetitions, the device operator is signalled of the positive reaction.
REFERENCES:
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"The Illicit Substance Detector" by Daryl S. Mileaf, Joseph Leginus, Ph.D. and Noe E. Rodriguez, II, Westinghouse Electric Corporation, Baltimore, MD to be published in Proceedings From Government Microcircuit Applications Conference 1994.
Mileaf Daryl Sunny
Rodriquez, II Noe Esau
Huff Sheela J.
Scheiner Toni R.
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