Chemistry: analytical and immunological testing – Composition for standardization – calibration – simulation,... – Glucose – ketone – nitrate standard or control
Patent
1985-02-26
1987-03-10
Lechert, Jr., Stephen J.
Chemistry: analytical and immunological testing
Composition for standardization, calibration, simulation,...
Glucose, ketone, nitrate standard or control
435 14, 435 4, G01N 3500
Patent
active
046491210
ABSTRACT:
A viability test device wherein the viability of a test composition for the determination of an analyte of interest can be determined by simply wetting the device with ordinary water. The viability device can be prepared in three formats: a control or calibrator device, an internal control device and a self indicating device. Unreacted analyte, or an analog thereof, can be incorporated in a limited defined portion of a dried carrier matrix incorporated with a test composition to provide an internal control test device. When wetted with water, a positive optical response, usually color, indicates the test composition can provide a viable test for the analyte. The internal control test device is particularly advantageously used by diabetics in their own homes where a negative test response could be due to the desired control of the user's condition or due to deterioration of a test composition because of unfavorable storage conditions.
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Hemmes Paul
Ismail Ibrahim A.
Skarstedt Mark T.
Zipp Adam
Boguslaski Mary G.
Lechert Jr. Stephen J.
Miles Laboratories Inc.
Wallen T. J.
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