电感耦合等离子体质谱仪故障分析与处理
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摘要
电感耦合等离子体质谱仪(ICP-MS)是一种适用于痕量元素分析的仪器,具有基体效应小、检出限低等特点。本文以安捷伦公司7500系列电感耦合等离子体质谱仪为例,列举了废气排放装置温度高、截取锥锥口频繁损坏、雾化室温度过高、冷却水流量低等4个仪器故障实例,介绍了通过分析仪器设计结构和控制系统原理,进行推理找到仪器故障原因并进行处理的方法。对于电感耦合等离子体质谱仪等精密仪器修复工作中遇到的疑难问题处理,提供了一种思路,采用的处理方法和技巧有利于保持仪器的良好性能。
Inductively coupled plasma mass spectrometer(ICP-MS)was an instrument suitable for the trace element analysis.It has the characteristics of small matrix effect and low detection limit.With 7500 series ICP-MS from Agilent Technologies as an example,four instrumental faults were listed including high temperature of exhaust gas discharging device,frequent damage of skimmer cone,excess temperature of atomizing chamber and low flow rate of cooling water.By introduction of the design structure and control system principle of the instrument,the cause of instrument fault and treatment method was found out by reasoning.Thus,a way to solve knotty problems for the recondition work of precision instruments such as ICP-MS was proposed.The proposed methods and skills were advantageous to maintaining good performance of instruments.
Inductively coupled plasma mass spectrometer(ICP-MS)was an instrument suitable for the trace element analysis.It has the characteristics of small matrix effect and low detection limit.With 7500 series ICP-MS from Agilent Technologies as an example,four instrumental faults were listed including high temperature of exhaust gas discharging device,frequent damage of skimmer cone,excess temperature of atomizing chamber and low flow rate of cooling water.By introduction of the design structure and control system principle of the instrument,the cause of instrument fault and treatment method was found out by reasoning.Thus,a way to solve knotty problems for the recondition work of precision instruments such as ICP-MS was proposed.The proposed methods and skills were advantageous to maintaining good performance of instruments.
引文
[1]乐淑葵,段永梅.电感耦合等离子体质谱法(ICP-MS)测定土壤中的重金属元素[J].中国无机分析化学,2015,5(3):16-19.LE Shu-kui,DUAN Yong-mei.Determination of heavy metal elements in soil by ICP-MS[J].Chines Journal of Inorganic Analytical Chemistry,2015,5(3):16-19.
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[11]李香宇,任建存,王世功,等.基于LM35的高精度温控系统的设计[J].电子设计工程,2017,25(15):94-96.LI Xiang-yu,REN Jian-cun,WANG Shi-gong,et al.Design of high-precision temperature control system based on LM35[J].Electronic Design Engineering,2017,25(15):94-96.
[12]张荫民,张学智,刘锋,等.管式光纤光栅温度传感器封装与传感特性研究[J].电子技术应用,2014,40(10):89-92.ZHANG Yin-min,ZHANG Xue-zhi,LIU Feng,et al.Study on tubular fiber Bragg grating temperature sensor packaging and sensing characteristics[J].Application of Electronic Technique,2014,40(10):89-92.
[13]李龙,范学军,王晶.高温壁面热流与温度一体化测量传感器研究[J].实验流体力学,2012,26(1):93-99.LI Long,FAN Xue-jun,WANG Jing.Study of integrated high temperature sensor for wall heat flux and temperature measurements[J].Journal of Experiments in Fluid Mechanics,2012,26(1):93-99.
[2]曾涛,沈倩.电感耦合等离子体质谱法(ICP-MS)应用进展及展望[J].广东化工,2018,45(18):116.ZENG Tao,SHEN Qian.The application progress of inductively coupled plasma mass spectrometry[J].Guangdong Chemical Industry,2018,45(18):116.
[3]苑国强,赵晶晶,何秀娟.NexION300X型电感耦合等离子体质谱仪的日常维护及故障排除[J].化学分析计量,2015,24(4):94-96.YUAN Guo-qiang,ZHAO Jing-jing,HE Xiu-juan.Regular maintenance and malfunction eliminating of NexION-300inductively coupled plasma-mass spectrometry[J].Chemical Analysis and Meterage,2015,24(4):94-96.
[4]王成英,梁倩,校艳玲.ICP-MS的常见故障与诊断方法[J].光谱仪器与分析(Spectronic Instruments and Analysis),2006,1(1):57-59.
[5]贾美清.电感耦合等离子体质谱仪的保养与维护[J].分析试验室(Chinese Journal of Analysis Laboratory),2009(S2):297-299.
[6]刘真贞,郑明明,卢琪,等.国产ICP-MS性能测试关键技术解析[J].世界有色金属,2016(1):67-70.LIU Zhen-zhen,ZHENG Ming-ming,LU Qi,et al.Domestic ICP-MS performance test key technical analysis[J].World Nonferrous Metals,2016(1):67-70.
[7]索卫国,胡清源,陈再根,等.ICP-MS法同时测定卷烟纸中元素铬、镍、铜、砷、硒、镉、铅[J].应用化学,2008,25(2):208-210.SUO Wei-guo,HU Qing-yuan,CHEN Zai-gen,et al.Simultaneous determination of Cr,Ni,Cu,As,Se,Cd and Pb in cigarette paper by ICP-MS[J].Chinese Journal of Applied Chemistry,2008,25(2):208-210.
[8]李囡.两款常见ICP-MS仪器对比[J].广东化工,2011,38(7):182-183.LI Nan.The compare and contrast about two ICP-MS instrumentations[J].Guangdong Chemical Industry,2011,38(7):182-183.
[9]李冰,杨红霞.电感耦合等离子体质谱原理和应用[M].北京:地质出版社,2005:18-20.
[10]杨永军.温度测量技术现状和发展概述[J].计测技术(Metrology &Measurement Technology),2009,29(4):62-65.
[11]李香宇,任建存,王世功,等.基于LM35的高精度温控系统的设计[J].电子设计工程,2017,25(15):94-96.LI Xiang-yu,REN Jian-cun,WANG Shi-gong,et al.Design of high-precision temperature control system based on LM35[J].Electronic Design Engineering,2017,25(15):94-96.
[12]张荫民,张学智,刘锋,等.管式光纤光栅温度传感器封装与传感特性研究[J].电子技术应用,2014,40(10):89-92.ZHANG Yin-min,ZHANG Xue-zhi,LIU Feng,et al.Study on tubular fiber Bragg grating temperature sensor packaging and sensing characteristics[J].Application of Electronic Technique,2014,40(10):89-92.
[13]李龙,范学军,王晶.高温壁面热流与温度一体化测量传感器研究[J].实验流体力学,2012,26(1):93-99.LI Long,FAN Xue-jun,WANG Jing.Study of integrated high temperature sensor for wall heat flux and temperature measurements[J].Journal of Experiments in Fluid Mechanics,2012,26(1):93-99.
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