浅谈多接收器电感耦合等离子体质谱仪的日常维护

The daily maintenance of the multi-collector inductively coupled plasma mass spectrometer

多接收器电感耦合等离子体质谱仪(以下简称MC-ICP-MS)广泛应用于同位素的准确测定,为地质、环境、考古等科学研究提供了破解"指纹密码"的重要工具,为地质科学研究提供了获取实验数据的重要手段。由于仪器部件老化、日常维护保养不到位和重要技术人员流动等原因,如果仪器长时间"带病"工作,故障率会增高,甚至濒临瘫痪,就很难保证同位素测试数据的可靠性。因此,掌握MC-ICP-MS各个部件的工作原理和特性及维护要领,加强日常的仪器维护,维持仪器正常运转,对于保障测试结果的准确度与精密度势在必行。本文结合长期实践经验,以Neptune仪器为例,重点介绍了MC-ICP-MS主要部件工作原理及维护要领,并对一些常见故障做详细分析,提出解决方案,以供相关技术人员参考与借鉴。

The wide application of the multi-collector inductively coupled plasma mass spectrometer(MC-ICPMS)provides a solid foundation in the field of scientific research.However,due to the aging of instrument components and the less of daily maintenance,many instruments have been working in bad state,with high failure rates and even on the verge of paralysis.It is difficult to guarantee the reliability of the isotope data.Therefore,it is necessary to master the working principle and characteristics of each component of MC-ICP-MS,maintain daily,and ensure the normal operation of instruments.It is necessary to obtain high-precision isotope data.In addition,some common faults are analyzed in detail and some repairing solutions are proposed.