连续流动法测定废水中挥发酚不确定度的研究
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摘要
采用连续流动法测定废水中挥发酚含量,通过实验过程分析测量过程中不确定度的来源,其中主要包括:样品的重复测定、标准溶液的配置、校准曲线的拟合、仪器本身测量的误差等,在分析的基础上建立相应的测量模型并对各分量进行计算评定,最终计算得出相对标准不确定度和扩展不确定度。通过评定各因素不确定度分量,进而得出如何减小测量过程中的不确定度。
The continuous flow method was used to determine the volatile phenol content in the wastewater. The source of the uncertainty during the measurement process was analyzed through the experimental process, including repeated measurement of the sample, configuration of the standard solution, fitting of the calibration curve, error of the instrument measurement, etc. On the basis of the analysis, the corresponding measurement model was established and the components were calculated and evaluated. The relative standard uncertainty and the extended uncertainty were calculated. By assessing the uncertainty component of each factor, how to reduce the uncertainty in the measurement process was concluded.
The continuous flow method was used to determine the volatile phenol content in the wastewater. The source of the uncertainty during the measurement process was analyzed through the experimental process, including repeated measurement of the sample, configuration of the standard solution, fitting of the calibration curve, error of the instrument measurement, etc. On the basis of the analysis, the corresponding measurement model was established and the components were calculated and evaluated. The relative standard uncertainty and the extended uncertainty were calculated. By assessing the uncertainty component of each factor, how to reduce the uncertainty in the measurement process was concluded.
引文
[1] 环境保护部.HJ503-2009 水质挥发酚的测定4-氨基比林分光光度法[S].北京:中国环境科学出版社,2009.
[2] 环境保护部.HJ502-2009 水质挥发酚的测定蒸馏后溴化容量法[S].北京:中国环境科学出版社,2009.
[3] 环境保护部.HJ 825-2017 水质挥发酚的测定流动注射4氨基安替比林分光光度法[S].北京:中国环境科学出版社,2017.
[4] 刘茂青.连续流动注射法测定水中挥发酚的含量[J].广州化工,2011,39(14):124-125.
[5] 全国法制计量管理计量技术委员会.测量不确定度评定与表示[S].国家质量监督检验检疫总局.
[6] 苗志国.流动注射测定阴离子表面活性剂不确定度的评估研究[J].环境影响评价,2015,40(2)108-110.
[7] 肖国起,赵洋甬,赵建平.流动注射法测定地表水中氨氮测量的不确定度评估[J].福建分析测试,2011,20(4):26-28.
[8] 赵莉,郭晶晶,杨虹.TOC/TN 分析仪法测定水质总氮的不确定度评定[J].绿色科技,2013(7):204-206.
[9] 曾兴宇,刘静,王燕.流动注射法测定海水中挥发酚的不确定度评定[J].盐业与化工,2013,42(10):24-26,31.
[10] 李君,罗建民,肖怀德.连续流动注射法测定水中挥发酚的不确定度评定[J].广州化工,2014(16):100-102,134.
[11] FIA检测挥发酚结果的不确定度评定[J].供水技术,2009,3(5):50-52.
[2] 环境保护部.HJ502-2009 水质挥发酚的测定蒸馏后溴化容量法[S].北京:中国环境科学出版社,2009.
[3] 环境保护部.HJ 825-2017 水质挥发酚的测定流动注射4氨基安替比林分光光度法[S].北京:中国环境科学出版社,2017.
[4] 刘茂青.连续流动注射法测定水中挥发酚的含量[J].广州化工,2011,39(14):124-125.
[5] 全国法制计量管理计量技术委员会.测量不确定度评定与表示[S].国家质量监督检验检疫总局.
[6] 苗志国.流动注射测定阴离子表面活性剂不确定度的评估研究[J].环境影响评价,2015,40(2)108-110.
[7] 肖国起,赵洋甬,赵建平.流动注射法测定地表水中氨氮测量的不确定度评估[J].福建分析测试,2011,20(4):26-28.
[8] 赵莉,郭晶晶,杨虹.TOC/TN 分析仪法测定水质总氮的不确定度评定[J].绿色科技,2013(7):204-206.
[9] 曾兴宇,刘静,王燕.流动注射法测定海水中挥发酚的不确定度评定[J].盐业与化工,2013,42(10):24-26,31.
[10] 李君,罗建民,肖怀德.连续流动注射法测定水中挥发酚的不确定度评定[J].广州化工,2014(16):100-102,134.
[11] FIA检测挥发酚结果的不确定度评定[J].供水技术,2009,3(5):50-52.