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首页> 外文会议>SMTA medical electronics symposium 2008 >SOLVENT EXTRACTION MATRIX SELECTION AND ITS POTENTIAL AFFECTS ON CLEANLINESS TEST RESULTS
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SOLVENT EXTRACTION MATRIX SELECTION AND ITS POTENTIAL AFFECTS ON CLEANLINESS TEST RESULTS

机译：溶剂萃取矩阵的选择及其对清洁测试结果的潜在影响

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Ion Chromatography (IC) is the predominant instrument used in the determination of overall cleanliness of printed circuit boards (PCB) and assemblies (PCA) in the medical device industry. Cleanliness testing should be one of many steps in your quality assurance process and its importance is critical as a first step in predicting overall product reliability.rnCleanliness requirements used by our medical product-based customers will be presented and discussed as well as compared to those requirements present in the non-medical product based industry.rnMost customers develop specifications for cleanliness testing on their own, but as a common thread, most of them reference the use of IPC-TM-650, method 2.3.28A - "Ionic Analysis of Circuit Boards, Ion Chromatography Method" as the testing procedure. Whether known or not, other ion chromatography-based cleanliness test methods are available for use, specifically those from Delphi Automotive Systems and the US military. Although major differences are not present when comparing the methods, one striking difference is present: the solvent extraction matrix.rnOverall, DI water and isopropyl alcohol / DI water solutions appear to be the matrices of choice. But why? And more importantly, which is the "best" matrix to choose? And does it really matter which matrix is chosen?rnThis presentation covers an internal study focused on determining the affects, if any, of the solvent extract matrix selection on the cleanliness results of a given sample. Additional relevant topics will also be addressed and discussed. Specifically, if differences are present, do these differences show any trends between the different matrices that may help in explaining why one matrix should be used instead of another? And also, should the products' end use have any determining factor in which matrix is selected?
机译：离子色谱（IC）是用于确定医疗设备行业中印刷电路板（PCB）和组件（PCA）总体清洁度的主要仪器。清洁度测试应该是质量保证过程中的许多步骤之一，它的重要性对于预测整体产品可靠性至关重要。rn我们将介绍和讨论基于医疗产品的客户使用的清洁度要求，并与这些要求进行比较大多数客户自行制定清洁度测试的规范，但作为通用线程，他们中的大多数参考IPC-TM-650方法2.3.28A的使用-“电路的离子分析”板，“离子色谱法”作为测试程序。不论是否已知，都可以使用其他基于离子​​色谱的清洁度测试方法，特别是来自Delphi Automotive Systems和美国军方的清洁度测试方法。尽管在比较这些方法时没有主要差异，但存在一个显着差异：溶剂萃取基质。总体上，去离子水和异丙醇/去离子水溶液似乎是选择的基质。但为什么？更重要的是，哪个“最佳”矩阵可供选择？选择哪种基质真的有关系吗？本次演讲涵盖了一项内部研究，重点在于确定溶剂萃取物基质选择对给定样品清洁度的影响（如果有）。其他相关主题也将得到解决和讨论。具体地说，如果存在差异，这些差异是否表明不同矩阵之间有任何趋势，可能有助于解释为什么应使用一个矩阵而不是另一个矩阵？而且，产品的最终用途是否应具有选择矩阵的任何决定因素？

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