电感耦合等离子体质谱法测定水体中溴和碘量
ICP-MS Determination of Bromine and Iodine in Waters
摘 要
采用电感耦合等离子体质谱法测定水体中溴和碘的含量.水样无需前处理与内标溶液稀释后直接测定,用氨水(1+99)溶液作介质和清洗液.以铟为内标物.溴和碘的质量浓度在100 μg·L-1以内与其响应强度呈线性关系,溴的检出限为0.19 μg·L-1,碘的检出限为0.083 μg·L-1.对5 μg·L-1溴和碘的混合标准溶液连续测定18次,测定值的相对标准偏差为2.3%(溴),1.9%(碘).方法用于水样的分析,加标回收率在88.0%~110%之间.
溴
碘
水体
ICP-MS
Bromine
Iodine
Waters
Abstract
ICP-MS was applied to the determination of bromine and iodine in waters.The water sample was diluted with internal standard solution and determined directly without any pretreatment.Aqueous ammonia solution (1+99) was used both as the medium and washing solution in the determination.Indium ion was used as internal standard.Linear relationships between values of intensity of response signal and mass concentration of bromine and iodine were kept in the same range within 100 μg·L-1 with detection limits of 0.19 μg·L-1 for bromine and 0.083 μg·L-1 for iodine.Precision of the method was tested at the concentration level of 5 μg·L-1 mixed standard solution for 18 determination,values of RSD′s found were 2.3% and 1.9% for bromine and iodine respectively.The proposed method was applied to the analysis of water samples,giving values of recovery in the range of 88.0%-110%.
中图分类号 O657.63 DOI 10.11973/lhjy-hx201508038
所属栏目 专题报道(环境监测)
基金项目
收稿日期 2014/8/28
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备注王旭日(1982-),男,海南临高人,工程师,硕士,主要从事环境中的重金属研究.
引用该论文: WANG Xu-ri,JIA Zhen-ya,CHEN Sheng,CHEN Nan,WANG Xiao-ju,HE Shu-hai. ICP-MS Determination of Bromine and Iodine in Waters[J]. Physical Testing and Chemical Analysis part B:Chemical Analysis, 2015, 51(8): 1187～1190
王旭日,贾振亚,陈盛,陈楠,王小菊,何书海. 电感耦合等离子体质谱法测定水体中溴和碘量[J]. 理化检验－化学分册, 2015, 51(8): 1187～1190
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参考文献
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【5】张云,徐刚,江勇,等.沉淀滴定计算分析法同时测定溴酸根与碘酸根[J].分析化学,2002,30(5):605-607．
【6】贺茂勇,肖应凯,马云麒,等.基于与酚红反应-分光光度法测定高碘卤水中溴[J].理化检验-化学分册,2009,45(12):120-121．
【7】郑日云,张志龙.极谱测定地质试样中的痕量溴[J].分析试验室,1991,10(6):9-12．
【8】王瑞侠,周享春,陆光汉.电化学分析方法测定卤素的研究进展[J].理化检验-化学分册,2012,48(9):1123-1128．
【9】方国桢,曾红燕,方梅.气相色谱和薄层色谱法在形态分析中的应用[J].岩矿测试,1996,15(4):299-310．
【10】US EPA Method 300.1Determination of inorganic anions in drinking water by ion chromatography[S]．
【11】李冰,何红蓼,史世云,等.电感耦合等离子体质谱法同时测定地质样品中的痕量溴碘硒砷的研究I.不同介质及不同阴离子对测定信号的影响[J].岩矿测试,2001,20(3):161-166．
【12】杨林,于珊.碰撞反应电感耦合等离子体质谱法直接测定卤水中的溴碘[J].岩矿测试,2013,32(3):502-505．
【13】赵秋香,汪模辉,刘赛红.电感耦合等离子体质谱仪同时测定地下水中的溴和碘[J].光谱实验室,2009,26(6):1519-1523．
【14】沈璐佳,董亚红.电感耦合等离子体质谱同时测定矿泉水中痕量溴和碘[J].中国无机分析化学,2012,2(4):31-34．
【15】徐义邦,樊孝俊,唐珂.电感耦合等离子体质谱法在非金属元素测定中的应用[J].理化检验-化学分册,2013,49(10):1276-1280．
【16】冯士筰,李凤岐,李少箐.海洋科学导论[M].北京:高等教育出版社,1998．
【17】HENMI T,TSUNOGAI S.Iodine in the surface water of the ocean[J].Journal of the Oceanographical Society of Japan,1971,27(2):67-72．
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