Langlois Eddy, Boulet Alain, Kauffer Edmond
Institut National de Recherche et de Sécurité, 50 av de Bourgogne, BP27 54501, Vandoeuvre Cedex, France.
J Environ Monit. 2008 Dec;10(12):1460-6. doi: 10.1039/b807652a. Epub 2008 Oct 22.
Nowadays, quality assurance is an important part in the environment of analytical laboratories, who need to prove their ability to perform analysis as well to handle routine control as research and development analysis. A proficiency testing scheme (PTS) is one of the possible and powerful tools to evaluate both bias and dispersion of the analysis. As far as industrial hygiene is concerned, since analytical uncertainty is insignificant with regard to sampling strategy uncertainty, laboratories could be tempted to neglect analytical uncertainty assessment as well. The department 'Métrologie des Polluants' (part of INRS) has been organising a proficiency testing scheme since 2002 with the intention of giving the most reliable performance assessment to the participant. The original features, which are also the strong points of the scheme, are: the determination of the assigned value by a method that is independent from the analytical method to be tested; the development of original tools for the fabrication of samples; the strength of the statistic model, which is based on the WASP HSL scheme model; a tool to visualize the results of participants in bias and dispersion contribution; communication with the participants; a completely computerized system to handle the participant database, the sample database, results treatment and report edition; and the use of internet facilities to allow the participant to submit the results via a secured website. All these technical and organisational points are detailed in this paper.
如今，质量保证是分析实验室环境中的重要组成部分，这些实验室需要证明其进行分析以及处理常规控制和研发分析的能力。能力验证计划（PTS）是评估分析偏差和离散度的一种可行且强大的工具。就工业卫生而言，由于与采样策略不确定性相比分析不确定性微不足道，实验室可能也会倾向于忽视分析不确定性评估。“污染物计量学”部门（法国国家科研中心的一部分）自2002年以来一直在组织能力验证计划，目的是为参与者提供最可靠的性能评估。该计划的独特之处，也是其优点在于：通过一种独立于待测试分析方法的方法确定赋值；开发用于制备样品的原始工具；基于WASP HSL计划模型的统计模型的优势；一种可视化参与者在偏差和离散度贡献方面结果的工具；与参与者的沟通；一个完全计算机化的系统，用于处理参与者数据库、样品数据库、结果处理和报告编辑；以及使用互联网设施允许参与者通过安全网站提交结果。本文将详细介绍所有这些技术和组织要点。
