参加水中氨氮、挥发酚检测能力验证的体会

莫建芳, 黄闽燕, 陈一军

莫建芳, 黄闽燕, 陈一军. 参加水中氨氮、挥发酚检测能力验证的体会[J]. 环境与职业医学, 2011, 28(6): 377-378.
引用本文: 莫建芳, 黄闽燕, 陈一军. 参加水中氨氮、挥发酚检测能力验证的体会[J]. 环境与职业医学, 2011, 28(6): 377-378.
MO Jian-fang , HUANG Min-yan , CHEN Yi-jun . A Proficiency Test Report of Ammonia and Volatile Phenol in Water[J]. Journal of Environmental and Occupational Medicine, 2011, 28(6): 377-378.
Citation: MO Jian-fang , HUANG Min-yan , CHEN Yi-jun . A Proficiency Test Report of Ammonia and Volatile Phenol in Water[J]. Journal of Environmental and Occupational Medicine, 2011, 28(6): 377-378.

参加水中氨氮、挥发酚检测能力验证的体会

详细信息
    作者简介:

    莫建芳(1962-),女,学士,副主任技师;研究方向:质量管理和卫生理化检验,E-mail:mjf_1215@126.com

A Proficiency Test Report of Ammonia and Volatile Phenol in Water

  • 摘要:
    [目的] 通过参加水中氨氮、挥发酚的检测能力验证,进一步总结经验,提高水质检测水平。

    [方法] 采用《生活饮用水标准检验方法& #183;无机非金属指标》 (GB/T 5750.5-2006)纳氏试剂分光光度法测定氨氮、《生活饮用水标准检验方法& #183;感观现状和物理指标》 (GB/T 5750.4-2006)氨基安替吡啉三氯甲烷萃取分光光度法测定挥发酚。以Z比分值来评价和判定检测结果。

    [结果] 本实验室氨氮测定数据实验室间Z比分值(ZB)为0.35,实验室内Z比分值(ZW)为0.22,挥发酚测定数据ZB值为-1.12, ZW值为0.54,|Z|均≤ 2,二项能力验证结果均为满意。

    [结论] 在本次水中氨氮、挥发酚能力验证活动中,通过采用标准样品进行实验室内部质量控制,严格按方法要求配制试剂和操作,用超纯水仪处理实验用水,控制空白值等关键点,可以获得满意结果。

     

    Abstract:
    [Objective] To further improve the water testing capability through a proficiency test of ammonia and volatile phenol in water.

    [Methods] The level of ammonia was tested by a Nessler spectrophotometry and the level of phenol was tested by a 4-AAP-chloroform extraction spectrophotometry. Z-score was used to evaluateand predicate test results.

    [Results] In the ammonia test, the Z-score of tests among laboratories (ZB)was 0.35 and the Z-score of tests within the same laboratory (ZW)was 0.22; in the phenol test, ZB was -1.12 and ZW was 0.54. It indicated that both tests met the proficiency requirement (both|Z|≤ 2).

    [Conclusion] The proficiency tests suggestion couple of key issues in laboratory management, such as internal quality control procedure, reagents' preparation and operation, purified water and blank controls.

     

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出版历程
  • 收稿日期:  2010-08-20
  • 刊出日期:  2017-07-18

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