东海近海水质活性磷测定的不确定度探讨
Study on the uncertainty of phosphate measurement in offshore water in the East China Sea
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摘要: 采用国际通用的方法研究了东海近海水质活性磷测定中的不确定度,分析了现场特定环境、测量标准、取样体积、摩尔质量等因素对测量不确定度的影响,评估了各参数的标准不确定度、合成标准不确定度和扩展不确定度.结果表明,现场特定环境是影响东海近海水质活性磷测定中不确定度的主要因素;东海近海水质活性磷测定中的相对合成标准不确定度约为0.067.Abstract: The uncertainty of phosphate measurement in offshore water in the East China Sea was studied with the general method.By analyzing the effective factors of measurement uncertainty,such as the specific measurement environment,the standard materials used,the sampling volume,mole quality,etc.,the standard uncertainty,the combined standard uncertainty and the extended uncertainty of phosphate measurement were estimated.The results show that the specific measurement environment is the main fluencing factor of measurement uncertainty of phosphate,and the relative combined standard uncertainty of phosphate in the offshore water in the East China Sea is about 0.067.
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Key words:
- East China Sea /
- offshore water /
- phosphate measurement /
- uncertainty
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尚德军,王军.测量不确定度的研究和应用进展[J].理化检验,2004,40(10):623-627. GB/T15481-2000,检测和校准实验室能力的通用要求[S]. GB17378.4-98,海洋监测规范[S]. JJF1059-1999,测量不确定度评定与表示[S]. 任松.测量不确定度在近海水质污染监测中的应用探讨[J].海洋环境科学,2004,23(2):61-65. 魏昊,乔东,江丽媛,等.化学分析中不确定度的评估指南[M].北京:中国计量出版社,2002. 曾江宁,黄韦艮,吕海燕,等.近岸海水质量量化方法及分类评价[J].海洋学报,2004,26(4):139-146. 黄自强,暨卫东.用水文化学要素类聚分析台湾海峡西部水团[J].海洋学报,1995,17(1):40-51. 于志刚.海水中溶解有机磷的测定方法[J].海洋学报,1999,21(5):138-143. 许建平,苏纪兰.CTD资料质量控制浅析[J].海洋学报,1999,21(1):126-132. LYSIAK-PASTUSZAK E. On quality assurance procedures in monitoring analyses of nutrients[J]. Oceanol Stud, 1996, 38(3):3-13. LYSIAK-PASTUSZAK E, Interlaboratory analytical performance studies:a way to estimate measurement uncertainty[J]. Oceanologia,2004,46(3):427-438. NEHRING D. Quality assurance of nutrient data with special respect to the HELCOM Baltic Monitoring Programme[J]. Baltic Sea Environ. Proc, 1994, 58(5):5-21. COFINO W P, WELLS D E. Design and evaluation of the QUASIMEME interlaboratory performance studies:a test case for robust statistics[J]. Mar Pollut Bull, 1994, 29(2):149-158. -
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