Sensitive ph indicator

Details Sensitive ph indicator Sensitive ph indicator

C - Chemistry, Metallurgy

09

B

260/396.5

C09B 11/12 (2006.01) C09B 11/10 (2006.01) G01N 31/22 (2006.01)

Patent

CA 1059527

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 bu 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.

271678

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