Automated test system for evaluating the physical compatibility

Details Automated test system for evaluating the physical compatibility Automated test system for evaluating the physical compatibility

1991-07-23

1994-01-25

Housel, James C.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Means for analyzing liquid or solid sample

422 67, 422 8205, 356319, 364498, G01N 2184, G01N 2190

Patent

active

052813967

ABSTRACT:
A system for evaluating the physical compatibility of two or more pharmaceutical chemicals in solution mixes chemical solutions in predetermined relative quantities in a test well and, under the direction of a control mechanism, measures the absorption of the mixture at two different wavelengths. The first wavelength is within the visual spectrum in the range of 400 to 500 nm and detects both changes in color and changes in physical properties caused by mixing the chemical solutions. The second wavelength is above the visual spectrum in the range of 610 to 650 nm to detect only changes in physical properties caused by mixing the chemical solutions. The control mechanism further compares the absorption measured at the two different wavelengths to differentiate between solely color changes and physical property changes (with or without color changes) caused by the mixing. The control mechanism also provides an output of the differentiated results.

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