动态反应池—电感耦合等离子体质谱法测定自来水中11种非常规金属元素
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摘要
目的了解广西各地市水厂出厂水水质非常规元素含量状况,建立自来水中11种非常规金属元素(Be、Mo、Tl、Sb、Ag、Ni、Ba、Na、K、Ca、Mg)的动态反应池-电感耦合等离子体质谱法(DRC-ICP-MS)。方法以6Li,45Sc,115In,209Bi为内标,采用电感耦合等离子体质谱法的标准模式(STD)及动态反应模式(DRC),一次进样同时测定水样中的11种元素。结果动态反应池技术及内标加入能有效消除干扰的影响,11种元素的线性相关系数均> 0. 999,相对标准偏差均<5%,各元素的加标回收率均在81. 0%～101. 5%,测定各元素的标准参考物质,11种元素测定值均在标准值范围内。结论该方法简便、快速、灵敏、准确,适用于自来水中11种非常规元素指标的同时测定。
Objective In order to investigate the levels of unconventional elements in tap water from different areas in Guangxi,an inductively coupled plasma mass spectrometry( ICP-MS) method was established for the determination of Be,Mo,Tl,Sb,Ag,Ni,Ba,Na,K,Ca and Mg in the tap water. Methods With6 Li,45Sc,115 In,209Bi as internal standard elements,11 target elements in tap water were determined simultaneously by ICP-MS in standard mode( STD) and dynamic reaction mode( DRC). Results Dynamic reaction cell technology and internal standard method can effectively eliminate the influence of interference. The linear correlation coefficients of the method were greater than 0. 999. The relative standard deviations( RSD)were less than 5% and the recoveries for the spiked samples ranged from 81. 0% to 101. 5%. The analysis results of standard reference materials were satisfactory. Conclusion This method is simple,fast and accurate,and it can be used to determine11 unconventional metal elements in tap water simultaneously.
Objective In order to investigate the levels of unconventional elements in tap water from different areas in Guangxi,an inductively coupled plasma mass spectrometry( ICP-MS) method was established for the determination of Be,Mo,Tl,Sb,Ag,Ni,Ba,Na,K,Ca and Mg in the tap water. Methods With6 Li,45Sc,115 In,209Bi as internal standard elements,11 target elements in tap water were determined simultaneously by ICP-MS in standard mode( STD) and dynamic reaction mode( DRC). Results Dynamic reaction cell technology and internal standard method can effectively eliminate the influence of interference. The linear correlation coefficients of the method were greater than 0. 999. The relative standard deviations( RSD)were less than 5% and the recoveries for the spiked samples ranged from 81. 0% to 101. 5%. The analysis results of standard reference materials were satisfactory. Conclusion This method is simple,fast and accurate,and it can be used to determine11 unconventional metal elements in tap water simultaneously.
引文
[1]中华人民共和国卫生部. GB 5749—2006生活饮用水卫生标准[S].北京:中国标准出版社,2006.
[2]中华人民共和国卫生部. GB 5750—2006生活饮用水卫生标准检验方法[S].北京:中国标准出版社,2006.
[3]耿琪,秦文华,曾东,等.原子吸收光谱法测定地表水中的钴[J].中国卫生检验杂志,2013,23(5):1321-1322.
[4]方素珍,陈春祝.原子荧光光谱法同时测定水中的锑和汞[J].中国卫生检验杂志,2014,24(17):2582-2583.
[5]孙仓,金福杰.地表水中镍的石墨炉-原子吸收分光光度法的优化研究[J].环境科学与管理,2015,40(6):113-116.
[6]赵永强,朱秀娟,刘志高,等.流动注射在线分离富集-火焰原子吸收光谱法测定水中镍(Ⅱ)[J].理化检验:化学分册,2015,51(6):787-789.
[7]刘丽萍,田佩瑶,张妮娜.涉水产品浸泡液中15种元素的电感耦合等离子体质谱测定法[J].环境与健康杂志,2006,23(5):460-462.
[8]徐向阳.电感耦合等离子体质谱(ICP-MS)在水质卫生检测中应用[J].中国卫生检验杂志,2010,20(10):2661-2662,2665.
[9]刘静波,张更宇.全自动消解电感耦合等离子体质谱仪测定环境土壤中铍钡铊银[J].分析试验室,2018,37(2):207-211.
[10]姜娜.电感耦合等离子体质谱技术在环境监测中的应用进展[J].中国环境监测,2014,30(2):118-124.
[11]孙世宏,湛社霞,臧李纳,等.电感耦合等离子体质谱法测定渔沙坦地区水中12种金属离子[J].中国卫生检验杂志,2013,23(8):1891-1892.
[12]许秀兰.微波消解ICP-MS法同时测定羊栖菜中13种元素及其食用风险评估[J].现代食品科技,2013,29(3):636-639.
[13]王俊,谭洪兴,刘惠坚,等.动态反应池电感耦合等离子体质谱法快速监测人体尿液中19种元素的含量[J].卫生研究,2012,41(4):654-658.
[14]张更宇,吴超,邓宇杰.电感耦合等离子体质谱(ICP-MS)联用技术的应用及展望[J].中国无机分析化学,2016,6(3):19-26.
[15]聂西度,符靓.电感耦合等离子体质谱法测定硅藻土助滤剂中的重金属元素[J].光谱学与光谱分析,2015,35(11):3192-3195.
[2]中华人民共和国卫生部. GB 5750—2006生活饮用水卫生标准检验方法[S].北京:中国标准出版社,2006.
[3]耿琪,秦文华,曾东,等.原子吸收光谱法测定地表水中的钴[J].中国卫生检验杂志,2013,23(5):1321-1322.
[4]方素珍,陈春祝.原子荧光光谱法同时测定水中的锑和汞[J].中国卫生检验杂志,2014,24(17):2582-2583.
[5]孙仓,金福杰.地表水中镍的石墨炉-原子吸收分光光度法的优化研究[J].环境科学与管理,2015,40(6):113-116.
[6]赵永强,朱秀娟,刘志高,等.流动注射在线分离富集-火焰原子吸收光谱法测定水中镍(Ⅱ)[J].理化检验:化学分册,2015,51(6):787-789.
[7]刘丽萍,田佩瑶,张妮娜.涉水产品浸泡液中15种元素的电感耦合等离子体质谱测定法[J].环境与健康杂志,2006,23(5):460-462.
[8]徐向阳.电感耦合等离子体质谱(ICP-MS)在水质卫生检测中应用[J].中国卫生检验杂志,2010,20(10):2661-2662,2665.
[9]刘静波,张更宇.全自动消解电感耦合等离子体质谱仪测定环境土壤中铍钡铊银[J].分析试验室,2018,37(2):207-211.
[10]姜娜.电感耦合等离子体质谱技术在环境监测中的应用进展[J].中国环境监测,2014,30(2):118-124.
[11]孙世宏,湛社霞,臧李纳,等.电感耦合等离子体质谱法测定渔沙坦地区水中12种金属离子[J].中国卫生检验杂志,2013,23(8):1891-1892.
[12]许秀兰.微波消解ICP-MS法同时测定羊栖菜中13种元素及其食用风险评估[J].现代食品科技,2013,29(3):636-639.
[13]王俊,谭洪兴,刘惠坚,等.动态反应池电感耦合等离子体质谱法快速监测人体尿液中19种元素的含量[J].卫生研究,2012,41(4):654-658.
[14]张更宇,吴超,邓宇杰.电感耦合等离子体质谱(ICP-MS)联用技术的应用及展望[J].中国无机分析化学,2016,6(3):19-26.
[15]聂西度,符靓.电感耦合等离子体质谱法测定硅藻土助滤剂中的重金属元素[J].光谱学与光谱分析,2015,35(11):3192-3195.