1.常州工业及消费品检验有限公司,江苏 常州 213017
2.南京海关危险货物与包装检测中心, 江苏 常州 213022
3.江苏理工学院 化学与环境工程学院,江苏 常州 213001
寇海娟,高级工程师,研究方向:食品接触材料及制品安全检测,E-mail:20228881@qq.com
罗世鹏,博士,副教授,研究方向:环境及食品接触材料中有害物质的检测,E-mail:spluo@jsut.edu.cn
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刘桂华,苏凤,李威等.高效液相色谱法测定食品接触材料及制品中9种酚类物质的迁移量[J].分析测试学报,2021,40(11):1619-1626.
LIU Gui-hua,SU Feng,LI Wei,et al.Determination of Migration of 9 Phenols in Food Contact Materials by High Performance Liquid Chromatography[J].Journal of Instrumental Analysis,2021,40(11):1619-1626.
刘桂华,苏凤,李威等.高效液相色谱法测定食品接触材料及制品中9种酚类物质的迁移量[J].分析测试学报,2021,40(11):1619-1626. DOI: 10.19969/j.fxcsxb.21073011.
LIU Gui-hua,SU Feng,LI Wei,et al.Determination of Migration of 9 Phenols in Food Contact Materials by High Performance Liquid Chromatography[J].Journal of Instrumental Analysis,2021,40(11):1619-1626. DOI: 10.19969/j.fxcsxb.21073011.
该文建立了苯酚、甲酚类、二甲酚类等9种酚类物质迁移量同时测定的高效液相色谱(HPLC)检测方法。采用Agilent ZORBAX SB-Aq色谱柱进行分离,以甲醇-水为流动相梯度洗脱,流速1.0 mL/min,荧光检测器测定,激发波长为214 nm,发射波长为315 nm。优化了含油脂食品模拟物中9种酚类物质的提取方式,并考察了线性范围、准确度及精密度等方法性能参数。研究结果表明,含油脂食品模拟物中9种酚类物质的最佳提取溶剂为67%甲醇溶液,9种酚类物质在水基及油脂类食品模拟物中的线性相关系数(,r,2,)均高于0.999,回收率为90.7%~99.8%,相对标准偏差均低于6.0%。5种水基食品模拟物中9种酚类物质的定量下限为0.07~0.10 mg/L,橄榄油中9种酚类物质的定量下限为0.15~0.20 mg/kg。方法成功应用于11批食品接触用聚碳酸酯(PC)塑料制品、15批涂层制品中9种酚类物质迁移量的测定。该方法灵敏度高、精密度好,可为食品接触材料及制品中9种酚类物质迁移量的分析提供技术支持。
A high performance liquid chromatographic(HPLC) method was established for the simultaneous determination of 9 phenols such as phenol,methyl-phenols and xylenols in food simulants. The sample was separated on an Agilent ZORBAX SB-Aq column by gradient elution,using methanol and water as mobile phase at a flow rate of 1.0 mL/min,and finally determined by fluorescence detection at an excitation wavelength of 214 nm and an emission wavelength of 315 nm.Meanwhile,the extraction method for 9 phenols in the fat-contained simulant was optimized,and the performances of the method including linearity,spiked recovery and precision were studied.Results demonstrated that 67% methanol aqueous solution was the best extraction solvent for the 9 phenols in fat simulants.The results also showed that there were good linear relationships for 9 phenols in all food simulants studied,with correlation coefficients(,r,2,) higher than 0.999.The recoveries for 9 phenols at 3 spiked levels in all food simulants ranged from 90.7% to 99.8%,with relative standard deviations (RSD) all below 6.0%.The limits of quantitation(LOQs) were in the ranges of 0.07-0.10 mg/L for aqueous simulants,and 0.15-0.20 mg/kg for fat simulants. This method was successfully applied to the migration determination of 9 phenols released from 11 plastics articles(PC) and 15 coatings intended to contact with food.The method was sensitive and accurate,and was suitable for the determination of 9 phenols in food simulants.
酚类物质迁移食品接触材料高效液相色谱法(HPLC)荧光检测器
phenolsmigrationfood contact materialshigh performance liquid chromatography (HPLC)fluorescence detector
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