ICP–MS法测定食品接触纸制品中铬、镍、砷、镉、铅、汞
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摘要
建立电感耦合等离子体质谱法(ICP–MS)测定食品接触纸制品中铬、镍、砷、镉、铅、汞6种重金属含量的方法。样品经微波消解处理后用ICP–MS进行测定,内标法定量。在优化实验条件下,测定汞元素的线性范围在0~10μg/L之间,测定铅、镉、铬、镍、砷元素的线性范围在0~100μg/L之间,相关系数均大于0.999。各元素的检出限为0.001~0.1 mg/kg,加标回收率为89.3%~116.0%,测定结果的相对标准偏差为3.5%~7.9%(n=6)。该方法样品处理简单,检测灵敏度高,适用于食品接触纸制品中铬、镍、砷、镉、铅、汞的检测。
The method for determining Cr, Ni, As, Cd, Pb, Hg in food contact paper products by inductively coupled plasma mass spectrometry(ICP–MS) was established. After being treated by microwave digestion method,the contents of Cr, Ni, As, Cd, Pb, Hg in samples were determined by ICP–MS, internal standard method was used. The linear range of detection was 0–10 μg/L for Hg, and 0–100 μg/L for Pb, Cd, Cr, Ni, As, and the correlation coefficients were more than 0.999. The detection limits were in the range of 0.001–0.1 mg/kg. The recovery rates of six elements ranged from 89.3% to 116.0%, and the relative standard deviations of detection results were 3.5%–7.9%(n=6). The method is simple in sample pretreatment,accurate and sensitive, it is suitable for the determination of Cr, Ni, As, Cd, Pb, Hg in food contact paper products.
The method for determining Cr, Ni, As, Cd, Pb, Hg in food contact paper products by inductively coupled plasma mass spectrometry(ICP–MS) was established. After being treated by microwave digestion method,the contents of Cr, Ni, As, Cd, Pb, Hg in samples were determined by ICP–MS, internal standard method was used. The linear range of detection was 0–10 μg/L for Hg, and 0–100 μg/L for Pb, Cd, Cr, Ni, As, and the correlation coefficients were more than 0.999. The detection limits were in the range of 0.001–0.1 mg/kg. The recovery rates of six elements ranged from 89.3% to 116.0%, and the relative standard deviations of detection results were 3.5%–7.9%(n=6). The method is simple in sample pretreatment,accurate and sensitive, it is suitable for the determination of Cr, Ni, As, Cd, Pb, Hg in food contact paper products.
引文
[1]张鑫,孙慧娟,邱廷华,等.浅谈食品中重金属的危害及应对措施[J].山东化工,2015,44(13):167–168.
[2]冷进松,高雪梅,王磊鑫.食品中重金属污染的危害及其检测技术研究进展[J].农产品加工,2015,14(12):50–53.
[3]张玉霞,王洪涛.食品接触塑料材料中重金属的现状分析[J].上海塑料,2012,40(3):8–22.
[4]黄湘鹭,李莉,曹进,等.我国食品接触材料的安全性检验研究进展[J].中国药事,2012,26(5):513–516.
[5]朱桃玉,郑艳明,罗海英,等.电感耦合等离子体质谱法测定食品接触材料中可溶性铅、镉、砷、汞[J].现代食品科技,2008,24(8):842–844.
[6]李媛,贾韶千,李思阳.微波消解/ICP–MS法测定乳制品纸铝塑包装中重金属[J].食品研究与开发,2017,38(4):154–157.
[7]贺鹏,陈练,吕小园,等.电感耦合等离子体质谱法同时测定与食品接触陶瓷制品中12种元素溶出量[J].食品安全质量检测学报,2016,7(1):177–181.
[8]禄春强,罗婵,孙多志,等.电感耦合等离子体质谱法测定食品包装用纸中9种重金属元素[J].理化检验(化学分册),2015,51(1):111–113.
[9]乔兆华,林勤宝,郭捷,等.ICP–MS法测定铝塑复合食品包装中的9种重金属[J].食品科学,2015,36(18):186–189.
[10]陈旻实,郑洁,许才明,等.电感耦合等离子体质谱法同时测定塑料食品接触材料原料和成型品中11种元素溶出量[J].食品科学,2015,36(8):236–239.
[11]叶旭炎,周加林,刘亚丽,等.微波消解–电感耦合等离子体质谱法测定纸杯中的铅[J].应用化工,2012,41(5):906–907.
[12]邱静,韩芳,郑平,等.电感耦合等离子体质谱测定包装材料中8种可溶性元素[J].分析试验室,2011,30(10):20–23.
[13]林立,周谙非,王朝晖.电感耦合等离子体质谱法测定食品包装材料中有害金属元素[J].食品工业科技,2011,32(11):457–459.
[14]薛美贵,王双飞,黄崇杏.印刷纸质食品包装材料中Pb、Cd、Cr及Hg含量的测定及其来源分析[J].化工学报,2010,61(12):3 258–3 265.
[15]GB 4806.8–2016食品安全国家标准食品接触用纸和纸板材料及制品[S].
[2]冷进松,高雪梅,王磊鑫.食品中重金属污染的危害及其检测技术研究进展[J].农产品加工,2015,14(12):50–53.
[3]张玉霞,王洪涛.食品接触塑料材料中重金属的现状分析[J].上海塑料,2012,40(3):8–22.
[4]黄湘鹭,李莉,曹进,等.我国食品接触材料的安全性检验研究进展[J].中国药事,2012,26(5):513–516.
[5]朱桃玉,郑艳明,罗海英,等.电感耦合等离子体质谱法测定食品接触材料中可溶性铅、镉、砷、汞[J].现代食品科技,2008,24(8):842–844.
[6]李媛,贾韶千,李思阳.微波消解/ICP–MS法测定乳制品纸铝塑包装中重金属[J].食品研究与开发,2017,38(4):154–157.
[7]贺鹏,陈练,吕小园,等.电感耦合等离子体质谱法同时测定与食品接触陶瓷制品中12种元素溶出量[J].食品安全质量检测学报,2016,7(1):177–181.
[8]禄春强,罗婵,孙多志,等.电感耦合等离子体质谱法测定食品包装用纸中9种重金属元素[J].理化检验(化学分册),2015,51(1):111–113.
[9]乔兆华,林勤宝,郭捷,等.ICP–MS法测定铝塑复合食品包装中的9种重金属[J].食品科学,2015,36(18):186–189.
[10]陈旻实,郑洁,许才明,等.电感耦合等离子体质谱法同时测定塑料食品接触材料原料和成型品中11种元素溶出量[J].食品科学,2015,36(8):236–239.
[11]叶旭炎,周加林,刘亚丽,等.微波消解–电感耦合等离子体质谱法测定纸杯中的铅[J].应用化工,2012,41(5):906–907.
[12]邱静,韩芳,郑平,等.电感耦合等离子体质谱测定包装材料中8种可溶性元素[J].分析试验室,2011,30(10):20–23.
[13]林立,周谙非,王朝晖.电感耦合等离子体质谱法测定食品包装材料中有害金属元素[J].食品工业科技,2011,32(11):457–459.
[14]薛美贵,王双飞,黄崇杏.印刷纸质食品包装材料中Pb、Cd、Cr及Hg含量的测定及其来源分析[J].化工学报,2010,61(12):3 258–3 265.
[15]GB 4806.8–2016食品安全国家标准食品接触用纸和纸板材料及制品[S].