FoodandFermentationScience&FoodandFermentationScience&TechnologyTechnology收稿日期:2023-03-29作者简介:李燕(1976-),女,硕士,高级工程师。研究方向:食品安全与检测。引用格式:李燕,鲍治成,杨冉冉,等.QuEChERS净化-气相色谱/三重四极杆质谱法测定酱油中6种对羟基苯甲酸酯类[J].食品与发酵科技,2023,59(4):151-155.QuEChERS净化-气相色谱/三重四极杆质谱法测定酱油中6种对羟基苯甲酸酯类李燕,鲍治成,杨冉冉,王忠一(烟台市食品药品检验检测中心,山东烟台264003)摘要:试验建立了QuEChERS净化-气相色谱/三重四极杆质谱仪检测酱油中6种对羟基苯甲酸酯类含量的方法。样品经盐酸酸化、乙腈提取、QuEChERS净化,用气相色谱/三重四极杆质谱仪检测,外标法定量。本方法实验条件下,对羟基苯甲酸酯类在0.02~5.0mg/L范围内呈良好线性关系,相关系数r2≥0.9991;样品中加标回收率为78.3%~101.3%,相对标准偏差介于1.5%~4.2%,对羟基苯甲酸酯类的检出限为0.01mg/kg。该方法操作简便,重现性好,且准确度、灵敏度高。关键词:QuEChERS;对羟基苯甲酸酯类;气相色谱-三重四极杆质谱法;酱油中图分类号:TS207.3文献标识码:A文章编号:1674-506X(2023)04-0151-0005Determinationof6ParabensinSoySaucebyQuEChERSPurificationGC-MS/MSLIYan,BAOZhicheng,YANGRanran,WANGZhongyi(YantaiTestingCenterforFoodandDrugControl,YantaiShandong264003,China)Abstract:AQuEChERSpurificationGC-MS/MSmethodwasestablishedforthedeterminationof6parabensinsoysauce.Thesampleswereacidifiedbyhydrochloricacid,extractedbyacetonitrile,purifiedbyQuEChERS,detectedbyGC-MS/MS,andquantifiedbyexternalstandardmethod.Undertheexperimentalconditionsofthismethod,therewasagoodlinearrelationshipbetweenparabensintherangeof0.02~5.0mg/L,andthecorrelationcoefficientr2≥0.9991.Therecoveriesrangedfrom78.3%to101.3%,andtherelativestandarddeviationsrangedfrom1.5%to4.2%.Thedetectionlimitsofparabenswere0.01mg/kg.Thismethodissimpleinoperation,goodinreproducibility,highinaccuracyandsensitivity.Keywords:QuEChERS;parabens;gaschromatography-triplequadrupolemassspectrometry(GC-MS/MS);soysaucedoi:10.3969/j.issn.1674-506X.2023.04-024对羟基苯甲酸酯类(PBs)又称尼泊金酯类,是由对羟...