大体积进样–Ag柱除氯–离子色谱法测定水中溴酸盐
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摘要
建立以大体积进样(250μL)–离子色谱测定水中溴酸盐(BrO_3~–)的方法。采用Ag柱离线去除样品中大量Cl~–以消除Cl~–干扰,同时保证痕量溴酸盐未沉淀,过滤后直接进样测定。BrO_3~–的质量浓度在2.0~25.0μg/L范围内与色谱峰面积呈良好的线性关系,线性相关系数r=0.999 2,方法检出限为0.8μg/L。自来水和矿泉水样品3浓度水平加标回收率为85.0%~101.0%,测定结果的相对标准偏差为3.6%~12.9%(n=6)。该方法样品处理简单,检出限低,准确度和精密度高,满足分析测试的要求。
The method for determination of bromate in water by large volume injection(250 μL)–ion chromatography was established. The disturbance of chloride ion was eliminated by using Ag column to remove most of chloride ion off line,meanwhile,the bromate was not precipitated,the sample was determined by ion chromatography. The mass concentration of bromated has good linear relationship with the peak areas in the range of 2.0–25.0 μg/L with the linear correlation coefficient(r) of 0.999 2,and the detection limit was 0.8 μg/L. The recovery rates of bromate in running water and commercial mineral water at 3 spiked levels were 85.0%–101.0%,and the relative standard deviation of determination results was 3.6%–12.9%(n=6). The method can meet the requirements of analysis with simple sample treatment,low detection limit,high accuracy and precision.
The method for determination of bromate in water by large volume injection(250 μL)–ion chromatography was established. The disturbance of chloride ion was eliminated by using Ag column to remove most of chloride ion off line,meanwhile,the bromate was not precipitated,the sample was determined by ion chromatography. The mass concentration of bromated has good linear relationship with the peak areas in the range of 2.0–25.0 μg/L with the linear correlation coefficient(r) of 0.999 2,and the detection limit was 0.8 μg/L. The recovery rates of bromate in running water and commercial mineral water at 3 spiked levels were 85.0%–101.0%,and the relative standard deviation of determination results was 3.6%–12.9%(n=6). The method can meet the requirements of analysis with simple sample treatment,low detection limit,high accuracy and precision.
引文
[1]张殷俊,沈莎莎,高群,等.江苏省沿江城市饮用水系统适应能力评估[J].中国环境监测,2013,29(5):73–79.
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[10]GB 5749–2006生活饮用水卫生标准[S].
[11]CJ/T 206–2005城市供水水质标准[S].
[12]US EPA Method 300.1 Determination of Inorganic Anions in Drinking Water by Oin Chromatography[S].
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[14]GB/T 5750–2006生活饮用水卫生标准检验方法[S].
[15]戴鸣,李为兵,吴黎敏.ICS–90型离子色谱仪测定饮用水中溴酸盐含量[J].供水技术,2007,1(4):43–44,48.
[16]王娟,戴军.离子色谱法测定饮用水中溴酸根[J].分析仪器,2008(5):21–23.
[17]罗海英,郭新东,吴玉銮,等.离子色谱法在饮用水溴酸盐分析中的应用[J].中国测试技术,2008,34(2):100–102.
[18]童俊,臧道德,陈国光,等.关于瓶装水水质标准中溴酸盐离子的探讨[J].净水技术,2009,28(1):72–74.
[19]史亚利,蔡亚岐,刘京生,等.大体积直接进样离子色谱法测定饮用水中痕量溴酸盐[J].分析化学,2005,33(8):1 077–1 080.
[20]楼颖伟,郑建珍.直接进样离子色谱法测定饮用水中的溴酸盐[J].上海预防医学,2015,24(12):691–693.
[21]HJ 168–2010环境监测分析方法标准制修订技术导则[S].
[2]袁波祥,陈莎,杨圣杰.臭氧化技术在饮用水处理中的应用[J].北方交通大学学报,2001,25(6):54–56,72.
[3]应波,李淑敏,岳银玲,等.离子色谱法同时测定空气中的二氧化硫和二氧化氮[J].中国预防医学杂志,2006,7(2):137–138.
[4]王建宏,蒋明蔚,尹建军,等.Ag–H柱去除氯离子提高包装水中溴酸盐的检测精度[J].食品工业科技,2010,31(12):349–351.
[5]裴义山,杨敏,郭召海,等.含溴水源水臭氧处理时溴酸盐的产生与控制[J].环境科学学报2007,27(11):1 767–1 770.
[6]刘勇建,牟世芬.离子色谱法在测定饮用水中痕量溴酸盐标准方法中的应用[J].环境化学,2002,21(2):203–204.
[7]US EPA 822–R–04–005 2004 2004 Edition of the Drinking Water Standards and Health Advisories[S].
[8]刘晶,何青青,杨丽莉,等.大体积进样–浓缩柱在线富集_离子色谱法测定水中痕量及超痕量溴酸盐[J].色谱,2015,33(10):1 110–1 114.
[9]GB 8537–2008饮用天然矿泉水[S].
[10]GB 5749–2006生活饮用水卫生标准[S].
[11]CJ/T 206–2005城市供水水质标准[S].
[12]US EPA Method 300.1 Determination of Inorganic Anions in Drinking Water by Oin Chromatography[S].
[13]沈霞芬,孙月奇,翁利丰.离子色谱法测定水中痕量溴酸盐[J].现代科学仪器,2008,18(2):108–113.
[14]GB/T 5750–2006生活饮用水卫生标准检验方法[S].
[15]戴鸣,李为兵,吴黎敏.ICS–90型离子色谱仪测定饮用水中溴酸盐含量[J].供水技术,2007,1(4):43–44,48.
[16]王娟,戴军.离子色谱法测定饮用水中溴酸根[J].分析仪器,2008(5):21–23.
[17]罗海英,郭新东,吴玉銮,等.离子色谱法在饮用水溴酸盐分析中的应用[J].中国测试技术,2008,34(2):100–102.
[18]童俊,臧道德,陈国光,等.关于瓶装水水质标准中溴酸盐离子的探讨[J].净水技术,2009,28(1):72–74.
[19]史亚利,蔡亚岐,刘京生,等.大体积直接进样离子色谱法测定饮用水中痕量溴酸盐[J].分析化学,2005,33(8):1 077–1 080.
[20]楼颖伟,郑建珍.直接进样离子色谱法测定饮用水中的溴酸盐[J].上海预防医学,2015,24(12):691–693.
[21]HJ 168–2010环境监测分析方法标准制修订技术导则[S].