| 紫外分光光度法测定水中化学需氧量的不确定度评定 |
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| 引用本文： | 陈旻实,曾树金,许才明,郑思远,张晓莉.紫外分光光度法测定水中化学需氧量的不确定度评定[J].福建分析测试,2013,22(3):21-25. |
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| 作者姓名： | 陈旻实 曾树金 许才明 郑思远 张晓莉 |
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| 作者单位： | 1. 福建出入境检验检疫局技术中心,国家消费品安全检测重点实验室,福建省检验检疫技术研究重点实验室,福建福州350001
2. 泉州出入境检验检疫局,福建泉州,362000 |
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| 摘 要： | 依据HJ/T 399-2007,选取含量接近法规限值的代表性样品,从基准物质溯源,探索测定水中化学需氧量的数学模型,对检测过程中引入的不确定度进行了分类和量化,系统全面地评定了各个不确定度分量,得到该方法的相对标准不确定度为0.033。
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| 关 键 词： | 水质 化学需氧量 不确定度 紫外分光光度法 |
Uncertainty Evaluation of the Determination of the Chemical Oxygen Demand in Water by Spectrophotometric method |
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| Chen Min-shi
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Zeng Shu-jin
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Xu Cai-ming
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Zheng Si-yuan
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Zhang Xiao-li.Uncertainty Evaluation of the Determination of the Chemical Oxygen Demand in Water by Spectrophotometric method[J].Fujian Anal Ysis & Testing,2013,22(3):21-25. |
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| Authors: | Chen Min-shi Zeng Shu-jin Xu Cai-ming Zheng Si-yuan Zhang Xiao-li |
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| Affiliation: | 1(Technical Centre of Fujian Entry-Exit Inspection & Quarantine Bureau,State key Laboratory of safety testing of consumer products,Fujian Key Laboratory Technology Research of Inspection & Quarantine,Fuzhou,Fujian 350001,China);2(Quanzhou Entry-Exit Inspection & Quarantine Bureau,Quanzhou,Fujian 362000,China) |
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| Abstract: | According to HJ/T 399-2007,using a representative sample in which the chemical oxygen demand was close to regulatory limit,the mathematical model for determination of the chemical oxygen demand in water was introduced by investigating from the standard material.The components of uncertainty in the detection process were classified and quantified,and were evaluated systematically.The uncertainty evaluation for determination of the chemical oxygen demand in water by spectrophotometric method was established. |
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| Keywords: | water quality the chemical oxygen demand uncertainty spectrophotometric method |
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