Catalytic test composition intended to produce a range of colors

Details Catalytic test composition intended to produce a range of colors Catalytic test composition intended to produce a range of colors

1987-07-30

1990-12-04

Rosen, Sam

Chemistry: molecular biology and microbiology

Measuring or testing process involving enzymes or...

Involving cholesterol

422 55, 422 56, 422 57, 435 14, 435 25, 435 26, 435805, 436704, C12Q 126, C12Q 132, C12Q 154, C12Q 160

Patent

active

049753673

ABSTRACT:
Test compositions, indicators, and test device are provided which are capable of generating different hues at different analyte concentrations. The compositions are capable of generating a yellow hue in situ. Visual tests for clinically important analytes, such as glucose, are determined by use of two independent catalytic systems which are reactive with reduced nicotinamide adenine dinucleotide to produce a range of hues; the particular hue produced depending on the concentration of the analyte. The invention provides a test device for the determination of analyte, e.g. glucose, in body fluid which exhibits a rainbow of hues, the particular final hue produced depending on the analyte concentration.

REFERENCES:
patent: 4490465 (1984-12-01), Limbach et al.
patent: 4629697 (1986-12-01), Limbach et al.

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