SYSTEMS FOR QUANTITATION OF NAPHTHENIC ACIDS IN WATER AND CRUDE OIL
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United States of America Patent
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Aug 6, 2015
app pub date -
Jan 30, 2015
filing date -
Feb 5, 2014
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The present disclosure relates generally to systems for accurate quantitation of naphthenic acids in liquid samples. The system allows efficient identification as well as quantitation of NA species based on carbon number and ring structure, but requires no chemical modification or extraction of the sample allowing a rapid throughput. Reverse phase liquid chromatographic separation of the sample minimizes (or eliminates) matrix suppression effects to allow detection of all NAs present in various samples by mass spectroscopy with superior detection thresholds that are as much as 350-fold lower than conventional systems.
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