Viability test device

Details Viability test device Viability test device

G - Physics

01

N

150/14, 150/3

G01N 33/96 (2006.01) C12Q 1/00 (2006.01) C12Q 1/54 (2006.01) G01N 33/52 (2006.01)

Patent

CA 1255198

ABSTRACT OF THE DISCLOSURE 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 in- ternal control test device is particularly advanta- geously 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.

489433

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