厦门海关技术中心,福建 厦门 361026
徐敦明,博士,研究员,研究方向:食品安全,E-mail:49213971@qq.com
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林睿,徐敦明,黄旖珏等.气相色谱-热能分析仪法同时测定食品接触材料及制品中15种N-亚硝胺在酒精类食品模拟物中的迁移量[J].分析测试学报,2022,41(10):1542-1547.
LIN Rui,XU Dun-ming,HUANG Yi-jue,et al.Simultaneous Determination of Specific Migration Amounts of 15 N-nitrosamines in Food Contact Materials and Products by Gas Chromatography-Thermal Energy Analyzer with Alcoholic Food Simulants[J].Journal of Instrumental Analysis,2022,41(10):1542-1547.
林睿,徐敦明,黄旖珏等.气相色谱-热能分析仪法同时测定食品接触材料及制品中15种N-亚硝胺在酒精类食品模拟物中的迁移量[J].分析测试学报,2022,41(10):1542-1547. DOI: 10.19969/j.fxcsxb.22071001.
LIN Rui,XU Dun-ming,HUANG Yi-jue,et al.Simultaneous Determination of Specific Migration Amounts of 15 N-nitrosamines in Food Contact Materials and Products by Gas Chromatography-Thermal Energy Analyzer with Alcoholic Food Simulants[J].Journal of Instrumental Analysis,2022,41(10):1542-1547. DOI: 10.19969/j.fxcsxb.22071001.
建立了气相色谱-热能分析仪法(GC-TEA)同时测定食品接触材料及制品中15种N-亚硝胺在酒精类食品模拟物中迁移量的方法。对气相色谱条件、前处理方法(液液萃取法)进行优化,以10%乙醇、20%乙醇、50%乙醇作为食品模拟物,浸泡液经稀释、液液萃取、浓缩、DB-FFAP色谱柱分离后,采用热能分析仪进行检测,外标法定量。在优化实验条件下,15种N-亚硝胺实现了良好的基线分离,线性范围为0.025 ~ 0.5 mg/L,相关系数(,r,2,)大于0.998,检出限(LOD)为0.200 μg/kg,定量下限(LOQ)为0.625 μg/kg。加标回收率为85.7% ~ 106%,相对标准偏差(RSD)小于10%。该方法具有操作简单、线性范围好、灵敏度和准确度高等优点,适用于食品接触材料及制品中15种N-亚硝胺迁移量的检测。
A gas chromatography-thermal energy analyzer(GC-TEA) method with alcoholic food simulants was established for the simultaneous determination on the migration amounts of 15 N-nitrosamines in food contact materials and products.The gas chromatographic conditions and pretreatment method(liquid-liquid extraction method) were optimized.Using 10% ethanol,20% ethanol and 50% ethanol as food simulants,the immersion solution was diluted,liquid-liquid extracted and concentrated,then separated on a DB-FFAP column,and finally detected by the thermal energy analyzer and quantified by the external standard method.Under the optimized experimental conditions,good baseline separation for 15 N-nitrosamines was achieved in the linear range of 0.025-0.5 mg/L,with correlation coefficients(,r,2,) greater than 0.998.The limits of detection(LODs) and limits of quantitation(LOQs) were 0.200 μg/kg and 0.625 μg/kg,respectively.The spiked recoveries ranged from 85.7% to 106%,with relative standard deviations(RSDs) less than 10%.With the advantages of simple operation,good linear range,high sensitivity and accuracy,the method was suitable for the determination of 15 N-nitrosamines in food contact materials and products.
食品接触材料及制品N-亚硝胺酒精类食品模拟物特殊迁移量气相色谱-热能分析仪法(GC-TEA)
food contact materials and productsN-nitrosaminesalcoholic food simulantsspecific migration amountsgas chromatography-thermal energy analyzer(GC-TEA)
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