Determining infections in liquid samples by detecting short-chain fatty acids and ammonia in the headspace associated with the liquid sample using polymer sensors
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United States of America Patent
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Jul 26, 2005
Grant Date -
Jun 3, 2004
app pub date -
Nov 26, 2001
filing date -
Nov 24, 2000
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Abstract
A method for determining the presence of an infection in a liquid sample comprising the steps of: lowering the pH of the liquid sample so as to drive short-chain fatty acids present in the liquid sample, acetic acid in particular, to the gaseous phase; detecting short-chain fatty acids, ammonia and, optionally amine species present as gases in a headspace associated with the liquid sample using a detector which is sensitive to the presence of short-chain fatty acids, ammonia and, optionally, amine species, particularly conductive and semi-conductive polymer sensors; and correlating the presence of detected short-chain fatty acids, ammonia and, optionally, amine species with the presence of the infection.
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