| 亚甲基蓝分光光度法测定废水硫化物的不确定度评定研究 |
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| 引用本文： | 于顺娣,崔永峰. 亚甲基蓝分光光度法测定废水硫化物的不确定度评定研究[J]. 环境科学与管理, 2014, 0(4): 141-144 |
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| 作者姓名： | 于顺娣 崔永峰 |
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| 作者单位： | [1]黑龙江省林甸县环境保护局,黑龙江大庆166300 [2]新疆塔里木油田建设工程有限责任公司,新疆库尔勒841000 |
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| 摘 要： | 分析了应用亚甲基蓝分光光度(GB/T16489-1996)测定废水硫化物测试过程中不确定度影响因素,主要来源为硫化物标准溶液、标准曲线拟合、随机效应、分光光度计和取样体积这五部分。本测量合成相对标准不确定度0.025 9;其中由测定样品质量引入的不确定度为0.024 7;由样品体积引入的不确定度为0.007 7。本次废水中硫化物测量结果为:0.110±0.006 mg/L,k=2(包含概率约为95%)。
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| 关 键 词： | 不确定度 评定 废水 硫化物 测定 亚甲基蓝分光光度法 |
Uncertainty in Determining Sulfide in Wastewater by Methylene Blue Spectrophotometry |
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| Yu Shundi,Cui Yongfeng. Uncertainty in Determining Sulfide in Wastewater by Methylene Blue Spectrophotometry[J]. Environmental Science and Management, 2014, 0(4): 141-144 |
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| Authors: | Yu Shundi Cui Yongfeng |
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| Affiliation: | 1. Lindian Environmental Protection Agency Environmental Monitoring Station, Daqing 166300, China; 2. Xinjiang Tarim Oilfield Construction Engineering Co. , Ltd. , Korla 841000, China) |
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| Abstract: | This paper studied on the influencing factors in determining sulfide in wastewater using methylene blue spectropho- tometry（ GB/T 16489 - 1996）. Its main factors are sulfide standard solution, standard curve fitting, random effects, spectropho- tometer and sampling volume. The uncertainty standard is 0. 025 9, while the uncertainty introduced by the determination of the sample quality is 0. 024 7 and uncertainty introduced by sample volume is 0. 007 7. The measurement result of the wastewater sul- fide is 0. 110 μ0. 006 mg / L, k = 2（probability about 95% ）. |
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| Keywords: | uncertainty evaluation wastewater sulfide determination methylene blue spectrophotometry |
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