流动注射在线萃取法测定地表水中阴离子表面活性剂
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摘要
近年来水质安全成为全民的关注点,水质分析测定污染物的项目也越来越多,阴离子表面活性剂已经成为当前水污染的重要指标之一,传统的亚甲基蓝分光光度法测定水中阴离子表面活性剂操作复杂,效率低,对人体危害大。本文使用FIA-6000+流动注射分析仪在线萃取法对地表水中阴离子表面活性剂进行测定分析,结果显示阴离子表面活性剂在0.025～2.0 mg/L有良好的线性相关(线性相关系数0.99994);检出限11.18μg/L;精密度(100μg/L,n=7)RSD=1.15%,水样的加标回收率为95%～104%。各项指标均能满足测试要求。
in recent years,water quality safety has become a national concern,water quality analysis and determination of pollutants have become more and more projects,anionic surfactants have become one of the important indicators of water pollution,The traditional methylene blue spectrophotometry for the determination of anionic surfactants in water is complex in operation,low in efficiency and harmful to human body. In this paper,anionic surfactants in surface water were determined and analyzed by on-line extraction with FIA-6000 flow injection analyzer. The results showed that anionic surfactants had good linear correlation in 0.025～2.0 mg/L(linear correlation coefficient 0.99994). Check out With the limit of 11.18 μg/L and the precision of(100 μg/L,n=7) RSD=1.15%,the recovery of water sample was 95%～104%. All the indexes can meet the test requirements.
in recent years,water quality safety has become a national concern,water quality analysis and determination of pollutants have become more and more projects,anionic surfactants have become one of the important indicators of water pollution,The traditional methylene blue spectrophotometry for the determination of anionic surfactants in water is complex in operation,low in efficiency and harmful to human body. In this paper,anionic surfactants in surface water were determined and analyzed by on-line extraction with FIA-6000 flow injection analyzer. The results showed that anionic surfactants had good linear correlation in 0.025～2.0 mg/L(linear correlation coefficient 0.99994). Check out With the limit of 11.18 μg/L and the precision of(100 μg/L,n=7) RSD=1.15%,the recovery of water sample was 95%～104%. All the indexes can meet the test requirements.
引文
[1]韩晓嫣,邵志刚.高效液相色谱法测定水中阴离子表面活性剂[J].净水技术,2006(3):71-73.
[2]张丽,杨春霞,刘玉侠.高效液相色谱法测定水环境中阴离子表面活性剂的探讨[J].污染防治技术,2012,25(6):56-61.
[3] 国家环境保护局.GB 7494-1987 水质阴离子表面活性剂的测定亚甲蓝分光光度法[S].北京:中国标准出版社,1987.
[4]汪海波,姚国峰.亚甲蓝分光光度法测定阴离子表面活性剂的改进[J].安徽化工,2011,37(5) :76-77.
[5]马威,袁英贤,李冰.亚甲蓝分光光度法测定废水中阴离子表面活性剂研究[J].河南科学,2003,21(4):421-423.
[6]谢志海,郎慧云,王昕,等,离子缔合物-萃取荧光光度法测定水中阴离子表面活性剂[J].分析实验室,2001,20(50):47-48.
[7]徐宏.荧光光度法在生活饮用水中阴离子洗涤剂分析中的应用[J].中国科技信息,2006(2):85-86.
[8]程世贤.电导滴定法测定离子型表面活性剂浓度[J].广州化工,2000,28(2):32-34.
[9]梁赟,唐东民,流动注射光度法与国标法测定水中 LAS 的比较[J].广州化工,2016,44(3):126-128.
[10] 盛冬梅.流动注射光度法快速测定阴离子表面活性剂与化学法比较[J].才智,2009(18):23-24.
[11]陈秋强,谢宏琴.流动注射分析仪测定地表水中阴离子表面活性剂的研究[J].应用化工,2012,41(8):1467-1469.
[2]张丽,杨春霞,刘玉侠.高效液相色谱法测定水环境中阴离子表面活性剂的探讨[J].污染防治技术,2012,25(6):56-61.
[3] 国家环境保护局.GB 7494-1987 水质阴离子表面活性剂的测定亚甲蓝分光光度法[S].北京:中国标准出版社,1987.
[4]汪海波,姚国峰.亚甲蓝分光光度法测定阴离子表面活性剂的改进[J].安徽化工,2011,37(5) :76-77.
[5]马威,袁英贤,李冰.亚甲蓝分光光度法测定废水中阴离子表面活性剂研究[J].河南科学,2003,21(4):421-423.
[6]谢志海,郎慧云,王昕,等,离子缔合物-萃取荧光光度法测定水中阴离子表面活性剂[J].分析实验室,2001,20(50):47-48.
[7]徐宏.荧光光度法在生活饮用水中阴离子洗涤剂分析中的应用[J].中国科技信息,2006(2):85-86.
[8]程世贤.电导滴定法测定离子型表面活性剂浓度[J].广州化工,2000,28(2):32-34.
[9]梁赟,唐东民,流动注射光度法与国标法测定水中 LAS 的比较[J].广州化工,2016,44(3):126-128.
[10] 盛冬梅.流动注射光度法快速测定阴离子表面活性剂与化学法比较[J].才智,2009(18):23-24.
[11]陈秋强,谢宏琴.流动注射分析仪测定地表水中阴离子表面活性剂的研究[J].应用化工,2012,41(8):1467-1469.
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