| 微生物电极法测定地表水中生化需氧量的不确定度评定 |
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| 引用本文： | 龚剑,傅惠红,陈迪云.微生物电极法测定地表水中生化需氧量的不确定度评定[J].广东农业科学,2011,38(5):160-162. |
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| 作者姓名： | 龚剑 傅惠红 陈迪云 |
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| 作者单位： | 1. 广州大学环境科学与工程学院,广东,广州,510006;广州市污染控制与同位素重点实验室,广东,广州,510006;珠江三角洲水质安全与保护实验室,广东,广州,510006
2. 广州大学环境科学与工程学院,广东,广州,510006 |
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| 基金项目： | 国家自然科学基金青年基金，广东高校优秀青年创新人才培育项目 |
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| 摘 要： | 依据国家标准方法和测量不确定度评定与表示的理论,评定了微生物电极法测定地表水中生化需氧量(BOD)的测量不确定度.测得水样中BOD含量为6.7 mg/L,扩展不确定度U95=L7 mg/L(k=2).该法合成标准不确定度主要来自仪器分析的重复性.
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| 关 键 词： | 生化需氧量 微生物电极 地表水 不确定度 |
Evaluation of uncertainty of measuring bio-chemical oxygen demand in surface water by microbial electrode sensor |
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| GONG Jian,FU Hui-hong,CHEN Di-yun.Evaluation of uncertainty of measuring bio-chemical oxygen demand in surface water by microbial electrode sensor[J].Guangdong Agricultural Sciences,2011,38(5):160-162. |
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| Authors: | GONG Jian FU Hui-hong CHEN Di-yun |
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| Institution: | GONG Jian1,2,3,FU Hui-hong1,CHEN Di-yun1,3(1.School of Environmental Science and Engineering,Guangzhou University,Guangzhou 510006,China,2.Guangzhou Key Laboratory of Environmental Pollution Control and Isotope Application,3.Safety and Protection of the Pearl River Delta Water Quality Laboratory,China) |
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| Abstract: | According to national standard method,the uncertainty of measuring bio-chemical oxygen demand(BOD) in surface water by microbial electrode sensor was evaluated based on the theory of evaluation and expression of uncertainty in measurement.6.7 mg/L of BOD was determined in the water,and 1.7 mg/L of the expanded uncertainty,U95(k=2) was obtained in the method.The result indicated that the combined standard uncertainty mainly derived from the reproducibility of instrumental analyzing. |
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| Keywords: | BOD microbial electrode surface water uncertainty |
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