Method and apparatus for preventing cross-examination of biochemical test wells in a microtiter test plate
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United States of America Patent
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Oct 20, 1987
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N/A
app pub date -
Mar 3, 1986
filing date -
Apr 15, 1985
priority date (Note) -
Expired
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Abstract
This invention relates to an improved method and apparatus for preventing cross-contamination of biochemical test wells included in a microtiter test plate which comprises the covering of the biochemical test wells with a porous barrier that has been impregnated with an approximately 10% (W/V) solution of a solid, water soluble compound and then dried before use, the impregnating material being one selected form a group of chemical compounds consisting of inorganic acid phosphates, the acid salts of amino acids and the polycarboxylic organic acids which are relatively non-volatile, non-hygroscopic and non-toxioc to humans and bacteria while remaining effective to neutralize alkaline gases without attacking the barrier material.
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