方便面、大米和花椒中环氧乙烷、2-氯乙醇、二氧六环和环氧丙烷残留量的测定  

Determination of ethylene oxide,2-chloroethanol,dioxide and propylene oxide residues in instant noodle,rice and pepper

作　　者：陈仁熙 梁伟方 黄小倩 张秀芹 CHEN Ren-Xi;LIANG Wei-Fang;HUANG Xiao-Qian;ZHANG Xiu-Qin(Centre Testing International Group Co.,Ltd.,Shenzhen 518101,China)

机构地区：[1]华测检测认证集团股份有限公司,深圳518101

出　　处：《食品安全质量检测学报》2024年第15期255-263,共9页Journal of Food Safety and Quality

摘　　要：目的建立QuEChERS-气相色谱-三重四极杆质谱法测定方便面、大米和花椒中环氧乙烷、2-氯乙醇、二氧六环和环氧丙烷的残留量的方法。方法样品经粉碎后用乙腈提取,提取液经分散固相萃取净化,分流进样,DB-WAX毛细管色谱柱分离,多反应监测模式检测,外标法定量。结果各化合物在10~500μg/L范围内线性关系良好,相关系数r^(2)均大于0.99;环氧乙烷、2-氯乙醇、二氧六环和环氧丙烷检出限均为0.01 mg/kg,定量限均为0.02mg/kg;环氧乙烷、2-氯乙醇、二氧六环和环氧丙烷的回收率范围分别为77.2%~111.8%、86.5%~114.1%、89.2%~114.0%、83.0%~108.6%,相对标准偏差分别为2.2%~11.3%、1.9%~11.4%、3.0%~11.9%、2.5%~11.7%。结论该方法操作简单、分析速度快、结果准确,可用于方便面、大米和花椒中环氧乙烷、2-氯乙醇、二氧六环和环氧丙烷残留量的测定。Objective To establish a method for determination of the amount of ethylene oxide,2-chloroethanol,dioxide and propylene oxide in instant noodle,rice and pepper by QuEChERS-gas chromatography-triple quadrupole mass spectrometry.Methods Samples were extracted by acetonitrile,purified by dispersed solid phase extraction,divided into samples,separated by DB-WAX capillary column,detected by multiple reaction monitoring mode,and quantified by external standard.Results Each compound showed a good linear relationship in the range of 10–500μg/L,the correlation coefficient r2 was greater than 0.99;the limits of detection for ethylene oxide,2-chloroethanol,dioxide and propylene oxide were 0.01 mg/kg,the limits of quantification were 0.02 mg/kg;the recovery rates of ethylene oxide,2-chloride ethanol,dioxide and propylene oxide ranged from 77.2%–111.8%,86.5%–114.1%,89.2%–114.0%,83.0%–108.6%,respectively,the relative standard deviations were 2.2%–11.3%、1.9%–11.4%、3.0%–11.9%,and 2.5%–11.7%,respectively.Conclusion This method has simple operation steps,rapid analysis speed and accurate results.It can be used for the determination of ethylene oxide,2-chlorine ethanol,dioxide and propylene oxide in instant noodle,rice and pepper.

关 键 词：环氧乙烷 2-氯乙醇 二氧六环 环氧丙烷 

分 类 号：TS207.3[轻工技术与工程—食品科学]