微波消解-ICP-MS检测纺织材料中6种有害元素总量
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摘要
探讨了微波消解-电感耦合等离子体质谱法(ICP-MS)同时测定纺织材料中6种重金属总量的方法。采用硝酸-双氧水体系优化了微波消解条件,同时测定了纺织品及其装饰材料中的Sb、As、Cd、Cr、Ba和Pb总量。测定的6种重金属总量在12.5～200.0μg/L时呈良好的线性关系;相关系数均不小于0.999 6,加标回收率为93.40%～100.05%,相对标准偏差为1.8%～4.7%,6种重金属的检出限和定量限分别为0.07～0.22μg/L和0.23～0.73μg/L。该方法在精密度、准确度和灵敏度方面均能满足日益严苛的相关实验标准要求,可实现多元素同时分析,有效提高检测效率,为纺织材料中重金属总量的检测提供技术储备。
The simultaneous determination of total amount of six heavy metals in textile materials by microwave digestion-inductively coupled plasma mass spectrometry(ICP-MS) was established. By using nitric acid-hydrogen peroxide system and optimizing microwave digestion conditions, the total amount of Sb, As,Cd, Cr, Ba and Pb in textiles and decorative materials was determined simultaneously. The total amount of six heavy metals determined showed a good linear relationship during 12.5～200.0 μg/L. The correlation coefficients were above 0.999 6, the recovery rate was 93.40%～100.05%, and the relative standard deviation was1.8%～4.7%. The detection limit and the quantitative limit of six heavy metals were 0.07～0.22 μg/L and 0.23～0.73 μg/L, respectively. This method could meet the increasingly stringent requirements of relevant experimental standards in terms of precision, accuracy and sensitivity. It could realize simultaneous multi-element analysis, effectively improve the detection efficiency, and provide technical reserves for the detection of total heavy metals in textile materials.
The simultaneous determination of total amount of six heavy metals in textile materials by microwave digestion-inductively coupled plasma mass spectrometry(ICP-MS) was established. By using nitric acid-hydrogen peroxide system and optimizing microwave digestion conditions, the total amount of Sb, As,Cd, Cr, Ba and Pb in textiles and decorative materials was determined simultaneously. The total amount of six heavy metals determined showed a good linear relationship during 12.5～200.0 μg/L. The correlation coefficients were above 0.999 6, the recovery rate was 93.40%～100.05%, and the relative standard deviation was1.8%～4.7%. The detection limit and the quantitative limit of six heavy metals were 0.07～0.22 μg/L and 0.23～0.73 μg/L, respectively. This method could meet the increasingly stringent requirements of relevant experimental standards in terms of precision, accuracy and sensitivity. It could realize simultaneous multi-element analysis, effectively improve the detection efficiency, and provide technical reserves for the detection of total heavy metals in textile materials.
引文
[1]李学洋,李淑芬,王利兵,等.我国生态纺织品标准与Oeko-Tex Standard 100的差异[J].上海纺织科技,2011,39(5):50-52.
[2]马书民,刘佳,芦春悔,等.ICP-MS法测定纺织品中可萃取重金属[J].印染,2015,41(16):45-47.
[3]徐建云,陈美君,任一佳.ICP-OES测定纺织品中钡总量与可迁移量[J].印染,2018,43(2):46-48.
[4]田勇,黄理纳,丁志勇.儿童用品纺织物中重金属汗液迁移影响因素[J].印染,2017,43(12):45-49.
[5]花金龙,姜逊,张玉莲,等.ICP-MS法测定聚酯纤维中TiO2含量[J].化学分析计算,2011,20(2):30-32.
[6]陈荣圻.纺织品中重金属残留的生态环保问题(一)[J].印染,2000,26(5):45-47.
[7]徐婧,崔雯,闻毅,等.儿童玩具中有害化学物质的危害及其检测研究进展[J].环境与健康杂志,2010,27(5):465-469.
[8]纪雷,孙健,王岩,等.欧盟与国产纺织品可萃取重金属含量测定及特征分析[J].光谱实验室,2004,21(5):488-491.
[9]史福霞,包红娟,邵秋凤,等.ICP-MS法测定皮革和纺织品中可萃取重金属含量[J].西部皮革,2017,39(9):28-31.
[10]史福霞,雷开强,邵秋凤,等.ICP-AES法测定染料中12种重金属元素含量[J].印染,2017,43(10):48-50.
[11] GB/T 18885—2009,生态纺织品技术要求[S].
[12] GB/T 18401—2010,国家纺织产品基本安全技术规范[S].
[13] GB/T 31701—2015,婴幼儿及儿童纺织产品安全技术规范[S].
[14] GB/T 33271—2016,机织婴幼儿服装[S].
[15] GB/T 33734—2017,机织婴幼儿床上用品[S].
[2]马书民,刘佳,芦春悔,等.ICP-MS法测定纺织品中可萃取重金属[J].印染,2015,41(16):45-47.
[3]徐建云,陈美君,任一佳.ICP-OES测定纺织品中钡总量与可迁移量[J].印染,2018,43(2):46-48.
[4]田勇,黄理纳,丁志勇.儿童用品纺织物中重金属汗液迁移影响因素[J].印染,2017,43(12):45-49.
[5]花金龙,姜逊,张玉莲,等.ICP-MS法测定聚酯纤维中TiO2含量[J].化学分析计算,2011,20(2):30-32.
[6]陈荣圻.纺织品中重金属残留的生态环保问题(一)[J].印染,2000,26(5):45-47.
[7]徐婧,崔雯,闻毅,等.儿童玩具中有害化学物质的危害及其检测研究进展[J].环境与健康杂志,2010,27(5):465-469.
[8]纪雷,孙健,王岩,等.欧盟与国产纺织品可萃取重金属含量测定及特征分析[J].光谱实验室,2004,21(5):488-491.
[9]史福霞,包红娟,邵秋凤,等.ICP-MS法测定皮革和纺织品中可萃取重金属含量[J].西部皮革,2017,39(9):28-31.
[10]史福霞,雷开强,邵秋凤,等.ICP-AES法测定染料中12种重金属元素含量[J].印染,2017,43(10):48-50.
[11] GB/T 18885—2009,生态纺织品技术要求[S].
[12] GB/T 18401—2010,国家纺织产品基本安全技术规范[S].
[13] GB/T 31701—2015,婴幼儿及儿童纺织产品安全技术规范[S].
[14] GB/T 33271—2016,机织婴幼儿服装[S].
[15] GB/T 33734—2017,机织婴幼儿床上用品[S].