1∶5万区矿调地球化学样品的分析质量监控

从改变溶样方式和改进分析方法入手，结合样品特性，对西南天山哈拉齐地区地球化学样品中19种元素的分析方法配套方案进行了优化；建立健全包括“人、机、料、法、环、测”6个方面的质量管理系统；开发建设了包含7个模块的实验室信息管理系统（LIMS），使质量管理走向信息化、规范化；通过准确度、精密度、重复性检验、异常点、外部监控样等内外部控制方法，采取多种手段，形成原因查找及改进的监控体系图，建成完善的1∶5万区矿调地球化学样品分析质量监控体系，为西南天山哈拉齐地区地球化学找矿和基础研究提供准确的地球化学信息。

Quality monitoring of geochemical sample analysis in 1:50000 regional geological and mineral resources survey

The analytical method matching scheme of 19 elements in geochemical samples in Karaqi area of Southwest Tianshan Mountains was optimized by changing the sample dissolving method, improving the analytical method and considering the characteristics of the sample. The quality management system comprising man, machine, material, method, measurement and surroundings was established and improved. The laboratory information management system consisting of seven modules (LIMS) responsible for the quality management information and standardization was also developed and constructed. The scientific and perfect 1∶50000 regional geological and mineral survey sample quality monitoring system was constructed by internal and external controlling methods for accuracy, precision, repeatability test, abnormal point and external monitoring. By adopting various means, establishing foundation of information courses and utilizing advanced monitoring system graphic display, the authors have supplied accurate geological-geochemical information for geochemical prospecting and basic research in Karaqi area of Southwest Tianshan Mountains.