共查询到20条相似文献,搜索用时 187 毫秒
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介绍了空白分析、重复检测、加标、控制样品分析和质量控制图等化学实验室常用内部质量控制方法,并从具体实施和应用的角度对质量控制计划作了阐述,以达到满足《检测和校准实验室能力认可准则在化学检测领域的应用说明》的要求,保证检测结果公正、准确、可靠的目的。 相似文献
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《中国石油和化工标准与质量》2017,(23)
质量控制是检验检测机构质量管理工作中十分重要的一部分。致力于满足实验室管理体系要求,确保检验检测结果的准确性和有效性。因此与检验检测有关的人员必须熟悉和掌握质量控制方法,才能为客户提供准确可靠的检测结果。本文详细介绍了检验检测机构内部质量控制和外部质量控制的控制方式和方法,能为检验检测人员提供质量控制的方法,以便正确使用并保证检测结果的准确性。 相似文献
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王化阳 《煤炭加工与综合利用》2021,(2):75-78,83
针对 《商品煤质量管理暂行办法》 对煤炭质量管理的要求以及煤炭检测数据对煤炭实验室的重要性,从工作实际出发,列举了多种实验室内部质量控制方式和外部质量控制活动,结合具体实例对煤炭检测质量控制方法进行了探讨.分析提出了实验室应建立和完善人员管理体系,加强人员培训和规范操作;明确了实验设备应满足方法要求,做好设备检定/校准... 相似文献
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检测实验室的产品是检测结果,保证检测结果的准确、可靠是检测实验室追求的质量目标。质量控制贯穿于实验室全部质量活动的始终,采取科学的方法对检测过程进行有效控制是对检测结果的重要保证。本文从实验室开展质量控制的依据、流程、方式和对不符合检测工作的原因分析等方面进行论述,为规范实验室质量控制提供了参考。 相似文献
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The quality control of copper alloy condenser tubes cannot be limited to mechanical characteristics, microstructure and chemical composition, but should be extended to cover such not yet fully standardized topics as tube Integrity :and surface conditions.An analysis of possible defects, with particular regard to internal ones and their relevance to tube life is given together with their causes.Problems related to detection of internal defects by means of eddy current test are also discussed. 相似文献
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W. B. Sizer 《Journal of the American Oil Chemists' Society》1984,61(6):1112-1113
In Canada, as in the USA, the quality of commercial oil exports is determined by independent laboratories, whereas the quality
of oilseed exports is controlled by government agencies. An independent laboratory has no direct control of oil exported.
The oil is sampled and analyzed at the time of shipment to determine whether certain contract specifications are met. Since
a particular oil may be shipped to any of a number of countries with different end uses, analysis requirements are not necessarily
the same. Besides analysis, other precautions are taken to ensure that quality is maintained. These include inspections of
ships’ tanks for cleanliness and suitability. In respect to oilseeds in Canada, quality is controlled at various stages by
strict adherence to grading standards regarding such items as dockage, seed maturity and moisture. All of this sampling and
control work is done by the Canadian Grain Commission, a government agency. Government grading standards make no reference
to oil content, but since most exports of oilseed are sold on a certain minimum oil content, an analysis for this is performed
by an independent laboratory on samples taken by the Canadian Grain Commission at the time of shipment. 相似文献
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A soft sensor was developed for quality estimation of diesel fuel as the crude distillation unit product. Due to the stringent fuel quality standards and the growing need to produce various gradations of quality with different feeds, laboratory testing and quality control of the products have become a necessity. On the basis of available continuous temperature measurements and flows of appropriate process streams, software sensors for estimating the cold filter plugging point of diesel fuel were developed. Nonlinear software sensor models were built with the best results achieved by using multilayer neural networks. Statistical data analysis was carried out and the data were critically evaluated. The results showed that soft sensors can be applied for refinery product quality estimation of diesel fuel as an alternative to laboratory testing. So, it becomes possible to continuously estimate fuel quality and to apply methods of inferential control for plant operation optimization. 相似文献
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提高实验室内部审核质量方法探讨 总被引:1,自引:1,他引:0
阐述实验室内部审核作用和内部审核涉及质量体系的过程:细致分析了影响内部审核质量的几个关键环节,包括内审目的、作用,提高人员素质,加强文件预审,常见两种审核形式优缺点,审核计划,制定抽样方案要点、编写检查表要点、撰写审核报告注意点,深入探讨提高实验室内审质量的方法,从而为有序高效实施内审提供了行为指南. 相似文献
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目的研究用化学发光免疫分析法(CLIA)检测人血清孕酮(PROG)。方法采用竞争抑制法,用高亲和力的多克隆抗体包被,碱性磷酸酶标记孕酮,金刚烷增敏化学发光体系作为酶底物来检测PROG。并考察试剂的灵敏度、精密性、准确性、特异性和测定范围。将试剂盒置4℃存放14个月,检测质控血清的PROG含量,考察试剂的稳定性。并与进口试剂进行比较。结果CLIA法检测PROG灵敏度达0.1ng/ml;特异度99.5%;测定范围在0.1~200ng/ml之间;用PROG浓度分别为高、中、低的质控血清测定精密性,批内和批间变异系数均小于10%,回收率在91.7%~108.4%之间;与雌二醇、雌三醇和雌酮的交叉反应率低于0.1%,与睾酮和可的松无交叉反应;试剂在4℃存放14个月,质控血清的测定值均在规定范围内;与进口全自动化学发光试剂BeckmanAccessTM相比有较好的相关性。二者测定结果的符合率为99.2%。结论化学发光法灵敏度高,特异性好,稳定性强,检测范围宽,有很好的准确性和精密性,是现有放射免疫法的理想替代方法。 相似文献
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质量控制图是分析检测实验室内控的主要工具,文章主要介绍质量控制图的原理、方法、分类和实现过程,并介绍了几种常用的绘制软件在质量控制图绘制中的应用。 相似文献