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《Journal of Chongqing University of Technology(Natural Science)》 2011-12
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Test of Qualitative and Quantitative Method for Cholesterol in Hogwash Oil by LC/MS/MS

YU Wen-jing1,ZHENG Li1,SHEN Chong-yu2(1.Suzhou Entry & Exit Inspection and Quarantine Bureau,Suzhou 215104,China; 2.Jiangsu Entry & Exit Inspection and Quarantine Bureau,Nanjing 210001,China)  
Cholesterol content was detected with LC/MS/MS method for identification of hogwash oil,and set up EPI(enhance product ion) MS library.LC/MS /MS limit of quantification(LOQ) based on a signal/noise ratio of 10,was estimated to be for 50ng/mL.The MRM-IDA-EPI has shown the quantification and confirmation analysis in one injection,and the overall average recovery in cholesterol spiked oil as 82%~93%.Compared with the hogwash oil,new oil was in a low quantity,so this method is well used for detection the cholesterol in the hogwash oil.
【CateGory Index】: TS227;O657.63
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