共查询到19条相似文献,搜索用时 859 毫秒
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化学分析方法验证和确认的应用研究 总被引:2,自引:0,他引:2
分析方法的验证/确认是实验室引进新方法时必做的工作,也是实验室技术工作的重点和难点之一。对实验室采用分析方法的验证和确认工作进行归纳总结,详述了分析方法选择性、测量范围、线性范围、检出限和定量限、精密度、准确度的验证/确认方法及结果判定方式。适用于实验室引进的标准方法(包括标准变更)和非标准方法(实验室设计/制定的方法、超出预定范围使用的标准方法、扩充和修改过的标准方法)的验证和确认。 相似文献
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阐述了测量方法确认的方法、指标以及方法确认的6种技术手段;介绍了方法确认技术的9种指标以及指标的获得和评价;指出方法确认技术的重点应放在识别和消除显著影响方面。 相似文献
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要点:本书第二版增强了色谱峰纯度检验,色谱指纹图潜、实验室能力验证和实验室认证与认可等相关内容的介绍。 相似文献
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关胜 《理化检验(化学分册)》2012,(8):995-999
对便携式气相色谱仪及其在环境污染事故应急监测中的应用进展作了评述,涉及的内容有便携式气相色谱仪的进样方式、色谱柱和检测器等性能特点及4种常见型号的便携式气相色谱仪的简介,及其在实际应用中的效果(引用文献21篇)。 相似文献
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为了保证天然气工业用气相色谱仪分析结果准确可靠和量值溯源有效,依据JJG 1055—2009《在线气相色谱仪》、JJF1033—2016《计量标准考核规范》等规程规范要求,配置建标所需计量标准器,研究开展了重复性试验、不确定度评定、检定结果的验证等工作,建立了天然气气相色谱仪检定装置,通过了国家市场监督管理总局的现场考... 相似文献
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设计了一种裂解气相色谱--裂解毛细柱气相色谱联用仪。在第一级裂解气相色谱仪把聚合物裂解并分离裂解产物,分离了的产物用六通气体进样阀选取并逐个在第二级裂解气相色谱仪裂解,得到聚合物裂解产物的裂解气相色谱图。与低分子化合物的标准指纹图比较,这些裂解产物就得到确认,这样,就可以充分肯定地推断复杂聚合物的组成。 相似文献
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It is only possible to obtain analytical results that are suitable for their intended purpose if the equipment used is capable of producing measurements of the required quality. To ensure that this requirement is met, analysts should define the performance criteria required from the instruments, ensure that only suitable instruments are selected for analytical measurements, and confirm that these instruments continue to meet these criteria for their entire operational life. This process should be conducted on a formal, documented basis, known as equipment qualification. In addition to describing the key elements of equipment qualification for all analytical instruments, this paper gives specific guidance on its application to conductivity systems that has never previously appeared in the literature. The benefits of performing equipment qualification are highlighted and guidance is given on the selection of control standards and why the equipment vendor performing stages of equipment qualification can be of benefit to the user. The relationship between equipment qualification and method validation is discussed, including how these activities play a major role in determining the quality control measures that should be applied to routine analysis. 相似文献
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While operational qualification (OQ) is a well-established term within equipment qualification, users of equipment often become unsure when it comes to implementation. The biggest problem is how to select procedures and acceptance criteria. Should these be the vendor's specifications or should the users define their own limits, and, if so, how? Should all instruments of the same type have the same values or should these be optimized for each individual instrument? This article will provide an overall strategy and specific examples for HPLC on how to select procedures and acceptance limits that are based on efficient use of resources, on practicality and on the intended use of the equipment. 相似文献
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The development and application of guidance on equipment qualification of analytical instruments 总被引:1,自引:0,他引:1
This paper describes the development of guidance for the equipment qualification (EQ) of analytical instruments. EQ is a
formal process that provides documented evidence that an instrument is fit for its intended purpose and kept in a state of
maintenance and calibration consistent with its use. 相似文献
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详细论述了管理评审的基本概念、如何开展管理评审工作以及中国实验室国家认可委员会的有关政策。 相似文献
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根据资质认定、实验室认可要求, 从仪器设备管理的要求和仪器设备管理工作实际出发, 归纳了实验室仪器设备管理、计量溯源方面的要求以及管理环节中容易出现的问题, 采用用户界面(user interface, UI)插件技术和Gojs技术开发了信息管理系统仪器设备管理模块, 降低了系统维护的难度, 满足了系统使用的个性化需求, 实现了仪器设备的分权限协作管理, 充分满足了资质认定、实验室认可中仪器设备管理的要求, 给仪器设备的使用、维修、维护工作带来了诸多便利, 提高了工作效率, 成为了仪器设备管理的有效工具. 相似文献
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Xiaoyu Wang Shaofeng Liu Qiaoling Xia Ge Zhao Jizhao Guo Fuwei Xie 《Journal of separation science》2013,36(23):3750-3757
Tobacco is a complex chemical matrix. The analysis of trace alkaline flavors in tobacco is very difficult because of the limited peak capacity of monodimensional GC. In the present study, a home‐assembled twin‐oven GC–GC–MS system, with MS detection in both dimensions, has been applied to the analysis of 20 alkaline volatiles in a variety of cut‐tobacco samples. By transferring nine and six heart‐cuts from the first apolar column to the second polar column in two separate runs, the potential mutual interference of adjacent isomeric targets and the complex matrix could be removed. For comparative purposes, a systematic comparison of both quantification and qualification results for the cut‐tobacco sample as quality control was conducted between GC–GC–MS and GC–MS. The results showed that GC–GC–MS provided higher accuracy in peak assignment and quantification. And in GC–MS, the interferences of co‐elution had caused both low matched similarity in peak assignment and false‐negative/‐positive results in quantification for some targets. Advantages of the developed GC–GC–MS method in the analysis of alkaline flavors are its high resolving power, reliability, and simplicity. 相似文献