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The butyrate disk test is a rapid test detecting the enzyme butyrate esterase. When used in conjunction with characteristic morphology on a blood agar plate, typical Gram stain, and a positive...

Cetrimide agar also known as pseudosel agar is used for the selective isolation and presumptive identification of Pseudomonas aeruginosa. The medium was first developed by Lowburry. It is a...

A buffy coat suspension is a concentrated leukocyte suspension. It contains most white blood cells and platelets from a whole blood sample. Blood stages can be concentrated using centrifugation...

Endospore staining is a differential technique that selectively stains the spores and makes them distinguishable from the vegetative part of the cells. Endospores are produced by a few genera of...

API (Analytical Profile Index) 20E is a biochemical panel from bioMerieux, Inc. for identifying and differentiating members of the family Enterobacteriaceae. The plastic strip holds twenty...

The complement fixation test is one of the major traditional tests for the demonstration of the presence of specific antigens or antibodies. It requires a veritable zoo of reagents and numerous...