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Determination of triclocarban and triclosan in biosolid and soil samples by application of pressurized liquid extraction and liquid chromatography with tandem mass spectrometry
A sensitive, rapid and reproducible analytical method for quantifying triclocarban (TCC) and triclosan (TCS) in biosolid and soil samples using pressurized liquid extraction (PLE) and ultraperformance liquid chromatography with triple quadrupole mass spectrometry (UPLC-MS-MS) is developed and presented in this study.
The analytes were ionized in a new combined ESI-APCI (ESCi) operating with negative ion mode. Recoveries of TCC and TCS from biosolids and soil samples ranged from 93% to 102%, and the method detection limits were both 0.05 ng/g (d.w.). The intra- and inter-day precision of the assay fell within acceptable ranges of 15%. The developed method was applied to evaluate the occurrence of these compounds at two wastewater treatment plants and five farms in Michigan. TCC and TCS analyzed were detected in three biosolids samples at high concentrations. TCC and TCS were found at a low or trace level of concentration in the five soil samples which had had biosolids applied to them. This indicates that antimicrobials might enter surface water and groundwater through runoff or infiltration where biosolids are used as fertilizer.
Determination of triclocarban and triclosan in biosolid and soil samples by application of pressurized liquid extraction and liquid chromatography with tandem mass spectrometry
A sensitive, rapid and reproducible analytical method for quantifying triclocarban (TCC) and triclosan (TCS) in biosolid and soil samples using pressurized liquid extraction (PLE) and ultraperformance liquid chromatography with triple quadrupole mass spectrometry (UPLC-MS-MS) is developed and presented in this study.
The analytes were ionized in a new combined ESI-APCI (ESCi) operating with negative ion mode. Recoveries of TCC and TCS from biosolids and soil samples ranged from 93% to 102%, and the method detection limits were both 0.05 ng/g (d.w.). The intra- and inter-day precision of the assay fell within acceptable ranges of 15%. The developed method was applied to evaluate the occurrence of these compounds at two wastewater treatment plants and five farms in Michigan. TCC and TCS analyzed were detected in three biosolids samples at high concentrations. TCC and TCS were found at a low or trace level of concentration in the five soil samples which had had biosolids applied to them. This indicates that antimicrobials might enter surface water and groundwater through runoff or infiltration where biosolids are used as fertilizer.
Determination of triclocarban and triclosan in biosolid and soil samples by application of pressurized liquid extraction and liquid chromatography with tandem mass spectrometry
Cha, Jongmun (author) / Cupples, Alison M (author)
Geosystem Engineering ; 15 ; 280-291
2012-12-01
12 pages
Article (Journal)
Electronic Resource
English
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