Sensitive pH indicator

Details Sensitive pH indicator Sensitive pH indicator

1976-05-03

1977-12-13

Shaver, Paul F.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260392, C09B 1110

Patent

active

040628760

ABSTRACT:
Process of preparing reduced aniline blue pH indicator for use in detecting presence of microorganisms in culture media. The process involves reducing aniline blue by the sequential addition of sodium thioglycollate. The reduced aniline blue indicator may be used in certain media designed for use in the cards and wells of the mechanism described in applications AUTOMATED MICROBIAL ANALYZER and MACHINE AND PROCESS FOR READING CARDS CONTAINING SPECIMENS.

REFERENCES:
patent: 327953 (1885-10-01), Kern

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