甲亚胺-H光度法检测水中硼测定条件的改进性研究
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摘要
对水中硼的标准分析方法甲亚胺-H分光光度法分别从方法的测定范围、校准系列溶液及被测样品的取样量、校准曲线标准点的合理化设置、分析测定的质量控制和提高测试灵敏度等方面进行改进。结果表明,经优化改进后,分析方法的检出限为0.045 mg/L,测定下限为0.18 mg/L,测定范围为0.083～3.3 mg/L。精密度和准确度的检验结果符合技术要求。改进后的方法,测定范围拓宽了2倍,降低了测定下限,提高了测定灵敏度,适合地表水以及其他水体中硼的分析测定,也适合大批量水样的快速测定。
Methylenimine-H spectrophotometry,which is a standard analysis method used for the detection of boron in water,from the research perspective of methodology.Aiming at the problems existed in the analysis method,it made an improvement and research in the aspects of measurement range,calibration serial solution,sampling volume of measured samples,reasonable setting of calibration curves ' standard points,analysis of quality control used in the measurement,improvement of measuring sensitivity,etc.The results showed that after the optimization and improvement,the detection limit of the analysis method was 0.045 mg/L,with the limit of quantitative determination of 0.18 mg/L and the measurement range of 0.083～3.3 mg/L.Moreover,its precision and accuracy of the determination results met the technical requirements.The measurement range of the improved analysis method has doubled,its limit of quantitative determination has lowered,and its sensitivity has enhanced.Therefore,it is suitable for not only the assay determination of boron in surface water and other water bodies but also the quick determination of large-scale water samples.
Methylenimine-H spectrophotometry,which is a standard analysis method used for the detection of boron in water,from the research perspective of methodology.Aiming at the problems existed in the analysis method,it made an improvement and research in the aspects of measurement range,calibration serial solution,sampling volume of measured samples,reasonable setting of calibration curves ' standard points,analysis of quality control used in the measurement,improvement of measuring sensitivity,etc.The results showed that after the optimization and improvement,the detection limit of the analysis method was 0.045 mg/L,with the limit of quantitative determination of 0.18 mg/L and the measurement range of 0.083～3.3 mg/L.Moreover,its precision and accuracy of the determination results met the technical requirements.The measurement range of the improved analysis method has doubled,its limit of quantitative determination has lowered,and its sensitivity has enhanced.Therefore,it is suitable for not only the assay determination of boron in surface water and other water bodies but also the quick determination of large-scale water samples.
引文
[1]国家环境保护局.HJ/T 49-1999水质硼的测定姜黄素分光光度法[S].北京:中国标准出版社,1999.
[2]卫生部,国家标准化管理委员会.GB/T 5750.5-2006生活饮用水标准检验方法无机非重金属指标甲亚胺-H分光光度法[S].北京:中国标准出版社,2006.
[3]黄雪莲.温泉水样中硼的测定方法[J].化学工程师,2018,32(5):30-32.
[4]丘山.甲亚胺-H光度法测定电镀废水中的微量硼[J].材料保护,2003,36(5):46-47.
[5]周春燕,伊文涛,马培华,等.微量硼的测定方法研究进展[J].理化检验-化学分册,2008,44:197-201.
[6]杨海云,李海民,孟瑞英.微量硼的分析方法比较[J].盐湖研究,2005(4):58-60.
[7]刘宇,魏双.关于硼的测定方法综述[J].微量元素与健康研究,2018,35(2):74-76.
[8]轩月兰,多克辛,南淑清,等.水中硼测定方法比对研究[J].中国环境监测,2013,29(2):75-78.
[9]沈康俊,蔡友琼,李冰,等.鲜活水产品及其制品中硼含量的测定[J].食品科学,2012,33(22):210-213.
[10]池卫廷.硼测定方法的研究现状[J].职业与健康,2010,26(3):335-338.
[11]陈淑萍,王雪征,茜晓哲,等.甲亚胺法测定土壤有效硼的研究[J].土壤学报,2009,46(3):537-540.
[12]刘占广,程滨,李景义.海水淡化过程中硼的测定[J].天津科技大学学报,2008,23(4):23-26.
[13]闫春燕,伊文涛,马培华,等.微量硼的测定方法研究进展[J].理化检验-化学分册,2008(2):197-201.
[14]石彦召,王亮,李新丽.土壤肥料中硼的测定方法研究[J].微量元素与健康研究,2006(5):42-43.
[15]环境保护部,环境监测.HJ 168-2010分析方法标准制修订技术导则[S].北京:中国环境科学出版社,2010.
[16]中国环境监测总站.环境水质监测质量保证手册[M].2版.北京:中国环境科学出版社,1994:115.
[2]卫生部,国家标准化管理委员会.GB/T 5750.5-2006生活饮用水标准检验方法无机非重金属指标甲亚胺-H分光光度法[S].北京:中国标准出版社,2006.
[3]黄雪莲.温泉水样中硼的测定方法[J].化学工程师,2018,32(5):30-32.
[4]丘山.甲亚胺-H光度法测定电镀废水中的微量硼[J].材料保护,2003,36(5):46-47.
[5]周春燕,伊文涛,马培华,等.微量硼的测定方法研究进展[J].理化检验-化学分册,2008,44:197-201.
[6]杨海云,李海民,孟瑞英.微量硼的分析方法比较[J].盐湖研究,2005(4):58-60.
[7]刘宇,魏双.关于硼的测定方法综述[J].微量元素与健康研究,2018,35(2):74-76.
[8]轩月兰,多克辛,南淑清,等.水中硼测定方法比对研究[J].中国环境监测,2013,29(2):75-78.
[9]沈康俊,蔡友琼,李冰,等.鲜活水产品及其制品中硼含量的测定[J].食品科学,2012,33(22):210-213.
[10]池卫廷.硼测定方法的研究现状[J].职业与健康,2010,26(3):335-338.
[11]陈淑萍,王雪征,茜晓哲,等.甲亚胺法测定土壤有效硼的研究[J].土壤学报,2009,46(3):537-540.
[12]刘占广,程滨,李景义.海水淡化过程中硼的测定[J].天津科技大学学报,2008,23(4):23-26.
[13]闫春燕,伊文涛,马培华,等.微量硼的测定方法研究进展[J].理化检验-化学分册,2008(2):197-201.
[14]石彦召,王亮,李新丽.土壤肥料中硼的测定方法研究[J].微量元素与健康研究,2006(5):42-43.
[15]环境保护部,环境监测.HJ 168-2010分析方法标准制修订技术导则[S].北京:中国环境科学出版社,2010.
[16]中国环境监测总站.环境水质监测质量保证手册[M].2版.北京:中国环境科学出版社,1994:115.