Color test strip carrying pad for correction

Details Color test strip carrying pad for correction Color test strip carrying pad for correction

1991-11-14

1994-05-17

Johnston, Jill A.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Calorimeter

422 57, 422 58, G01N 3122, G01N 3350

Patent

active

053125916

ABSTRACT:
A color test strip for detecting predetermined substances which carries on a support at least one coloring pad and at least one pad for. The correction pad having a pH which is adjusted in relation to pH of the coloring pad. The color test strip can avoid false positive and false negative results.

REFERENCES:
patent: 4125372 (1978-11-01), Kawai et al.
patent: 4160646 (1979-07-01), Furutani et al.
patent: 4837043 (1989-06-01), Engelmann et al.

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