石墨炉原子吸收光谱法测定不锈钢食具容器中锰的溶出量
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摘要
不锈钢食具容器样品经4%醋酸溶液浸泡过夜,取浸泡液测试,以磷酸二氢铵-硝酸镁为基体改进剂,试验了石墨炉原子吸收法测定锰的最佳仪器条件,提出了石墨炉原子吸收光谱法测定不锈钢食具容器中锰溶出量的分析方法。在选定的最优测试条件下锰的检出限为0.10μg·L-1,样品加标回收率为96.8%~104.8%,相对标准偏差小于2.4%。
The stainless steel food container sample was soaked in 4% acetic acid solution over night,then the soaking solution was taken for test. With ammonium dihydrogen phosphate—magnesium nitrate matrix as the improver,the optimum instrument conditions for determination of manganese by graphite furnace atomic absorption spectrometry were tested. A method for the determination of manganese in leaching solution released from stainless steel food containers by graphite furnace atomic absorption spectrometry was developed under the selected optimum test conditions. The detection limit of manganese was 0.10μg·L-1,the range of sample recovery rate after addition of standard substance was 96.8%~104.8%,with relative standard deviation(RSD) below 2.4%.
The stainless steel food container sample was soaked in 4% acetic acid solution over night,then the soaking solution was taken for test. With ammonium dihydrogen phosphate—magnesium nitrate matrix as the improver,the optimum instrument conditions for determination of manganese by graphite furnace atomic absorption spectrometry were tested. A method for the determination of manganese in leaching solution released from stainless steel food containers by graphite furnace atomic absorption spectrometry was developed under the selected optimum test conditions. The detection limit of manganese was 0.10μg·L-1,the range of sample recovery rate after addition of standard substance was 96.8%~104.8%,with relative standard deviation(RSD) below 2.4%.
引文
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[11]刘洁,芮琦,马冲先,等.电感耦合等离子体原子发射光谱法测定不锈钢食具容器中12种重金属元素的迁移量[J].理化检验-化学分册,2014,50(7):824-827.
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[13]陈永康,张笑旻,张丽琪.ICP-AES法快速测定不锈钢食具容器中重金属的迁移量[J].化学分析计量,2016,25(3):26-29.
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[2]荆俊杰,谢吉民.微量元素锰污染对人体的危害[J].广东微量元素科学,2008,15(2):6-9.
[3]王琳,张萍,刘艇飞.食品接触材料新国标的变化及影响分析[J].包装与食品机械,2016,34(5):60-64.
[4]付露莹,王锐,张有林.食品包装材料研究进展[J].包装与食品机械,2018,36(1):51-56.
[5]商责芹,赵敏,王文烨.国内外不锈钢食品接触材料法规研究[J].食品安全质量检测学报,2014,5(8):2602-2608.
[6]张丽丽,霍杰标,叶蔚云,等.浊点萃取-GFAAS测定不锈钢制品中食品模拟物中六价铬[J].中国卫生检验杂志,2015,25(1):24-26.
[7]张宁,牛承辉,秦朝秋.石墨炉原子吸收法测定食品接触材料制品中有害重金属迁移量[J].食品安全质量检测学报,2015,6(12):4762-4766.
[8]郝文,曲青.石墨炉原子吸收分光光度法测定不锈钢食具容器乙酸浸泡液中的镉、铅、镍、铬[J].预防医学论坛,2015,22(5):387-389.
[9]蒋小良,王洁泉,黄钧,等.HG-AAS法测定不锈钢食具浸泡液中痕量的砷[J].化学分析计量,2011,20(6):40-42.
[10]余裕娟,吴兆凤,吴思超,等.石墨炉原子吸收光谱法测定不锈钢食具容器中砷的迁移量[J].检验检疫学刊,2013,23(6):1-3.
[11]刘洁,芮琦,马冲先,等.电感耦合等离子体原子发射光谱法测定不锈钢食具容器中12种重金属元素的迁移量[J].理化检验-化学分册,2014,50(7):824-827.
[12]宋传旺,庞晋山.电感耦合等离子体原子发射光谱同时测定不锈钢厨具铬、镍、镉、镍、砷的溶出量[J].理化检验-化学分册,2010,46(5):528-530.
[13]陈永康,张笑旻,张丽琪.ICP-AES法快速测定不锈钢食具容器中重金属的迁移量[J].化学分析计量,2016,25(3):26-29.
[14]国家卫生和计划生育委员会.食品安全国家标准食品接触材料及制品迁移试验预处理方法通则:GB 5009.156-2016[S].北京:中国标准出版社,2016.