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Short Report
ScienceAsia 21 (1995): 047-050 |doi: 10.2306/scienceasia1513-1874.1995.21.047
COST EFFECTIVE AND CONVENIENT VERSION OF THE DROP PLATE METHOD
KAMNIRD SUPANWONG AND KALTIMA PICHAI
ABSTRACT: Determination of colony forming units (CFU) by the Drop Plate method usually requires 3 agar plates and 3 calibrated pipettes. Here, a modification of this method is described using 1 agar plate to accommodate 6 drops, one from each dilution. Accuracy of the method is maintained even when 1 calibrated pipette is used to make all 6 drops.
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Ethanol Fermentation Research Unit, Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, THAILAND.
Received October 21, 1994
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