Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Calorimeter
Patent
1986-02-14
1988-05-17
Richman, Barry S.
Chemical apparatus and process disinfecting, deodorizing, preser
Analyzer, structured indicator, or manipulative laboratory...
Calorimeter
422 70, 436124, 436162, G01N 3090, G01N 3122
Patent
active
047449527
ABSTRACT:
A test paper which is disclosed herein comprises a filter paper bearing a mixed berberine sulfate/pigment solution applied on a part thereof. The mixed berberine sulfate/pigment solution is produced by dissolving berberine sulfate and a pigment in a solvent such as water or an organic solvent. The test paper is used to determine the concentration of common salt in an aqueous common salt containing solution of urine or food as well as the content of chlorine or other halogen ions such as bromine and iodine ions in an aqueous halogen-containing solution. The test paper may be made by dissolving a berberine sulfate and a pigment in a solvent and applying the resulting mixed berberine/pigment solution onto a portion of a filter paper. The pigment may be Patent Blue V.
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The Merck Index, Tenth Edition, Merck & Co., Inc., Rahway, N.J., 1983, p. 165.
Touchstone et al., "Practice of Thin Layer Chromatography", 2nd Edition, John Wiley & Sons Inc., New York, 1983, pp. 10, 11, 270 and 271.
Johnston Jill
Richman Barry S.
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