【摘 要】
：
By applying frozen liquid-liquid extraction to remove the oil ingredient of samples,a method for the simultaneous determination and quantification of 4 OTCs
【机 构】
：
CenterofAnalysisandTesting,NanchangUniversity,Nanchang330047,ChinaStateKeyLaboratoryofFoodScienceand
【出 处】
：
2014年全国生物技术与食品质量博士后学术论坛
论文部分内容阅读
By applying frozen liquid-liquid extraction to remove the oil ingredient of samples,a method for the simultaneous determination and quantification of 4 OTCs in plant oil samples by gas chromatography-mass spectrometry(GC-MS)determination has been established for the first time.The derivatization with NaBEt4 and extraction for the extracts was carried out,followed by the further purification with dispersive-solid phase extraction(d-SPE),which eliminated the matrix interference and was benefit for the sample determination.Under the optimized conditions,good accuracy and precision were attained.The average recoveries obtained for analytes were in the range of 75.6%-114.9%,with the relative standard deviation(RSD)lower than 12.6%,and the limits of detection for each OTC were ranged between 0.25 μg·kg-1and 0.30 μg·kg-1.Some different plant oil samples were detected using this developed method to demonstrate its feasibility for the OTCs determination in oil samples.Therefore,establishing the simple,rapid and sensitive methods for analyzing the oil samples,is very significance for monitoring the OTCs.
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