Microbial detection apparatus, microbial detection method, and sample container used therein

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United States of America Patent

PATENT NO 8679828
APP PUB NO 20140011221A1
SERIAL NO

14023640

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Abstract

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The sample container has a two-layer membrane filter comprising a first layer as an upper layer serving as a hydrophilic membrane filter and a hydrophobic membrane filter as an underlying second layer capable of filtering an aqueous solution without the use of a wetting agent and by means of a formed negative pressure. Using this sample container, a large amount of an aqueous sample solution is filtered by means of a negative pressure formed by a suction portion to capture microbes in the aqueous sample solution by the hydrophilic membrane filter. Then, the negative pressure is restored to normal pressure, and a microbial dissolution solution is then added to the membrane filter to retain the microbial dissolution solution for a given time on the hydrophobic membrane filter. Then, the microbial dissolution solution is dispensed to a reaction container containing a luminescent reagent, and luminescence is detected to detect the microbes.

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Patent Owner(s)

Patent OwnerAddress
HITACHI PLANT SERVICES CO LTDTOKYO 170-6034

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Miyashita, Noe Tokyo, JP 22 127
Noda, Hideyuki Tokyo, JP 75 2816
Okanojo, Masahiro Tokyo, JP 26 118

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