| iCAP 6300电感耦合等离子体发射光谱仪的常规维护方法 |
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| 引用本文： | 赵庆令,李清彩.iCAP 6300电感耦合等离子体发射光谱仪的常规维护方法[J].岩矿测试,2014,33(5):767-772. |
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| 作者姓名： | 赵庆令 李清彩 |
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| 作者单位： | 山东省鲁南地质工程勘察院,山东兖州272100;中国地质大学(武汉)环境学院,湖北武汉430074 |
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| 摘 要： | 电感耦合等离子体发射光谱仪在使用过程中,由于控制气体流量的电磁阀出现机械性移位,致使工作气流量过于偏大或偏小,对进样系统及分析数据产生不利影响;长期频繁使用条件下,由于控制光学系统的机械定位装置的磨损,致使谱峰坐标偏离而影响仪器灵敏度;很长时间不能"引燃"等离子体,检查进样系统和氩气纯度并没有发现异常,需要验证RF发生器有无功率输出时有一定的困难;在等离子体工作时产生的高温尾气的长期作用下,难免造成点火头末端铜丝的锈蚀,致使点火头放电微弱,不能"引燃"等离子体。因此,为保证仪器的正常运行,提高工作效率,确保检测数据的准确度,实验室应建立健全电感耦合等离子体发射光谱仪维护保养方案,解决上述问题。本文结合实际工作经验,以iCAP 6300电感耦合等离子体发射光谱仪为例,提出可以借助"Manufacturing and Service.exe"程序校正工作气流量,验证RF发生器是否输出功率;利用C 193.091 nm谱线为基准校正谱线修正CID检测器的谱峰坐标系统;另外,对点火头、分析软件数据库及主机灰尘的清理也进行了详细的维护说明,这些措施有益于保障仪器的性能及提高设备的利用率。
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| 关 键 词： | 电感耦合等离子体发射光谱仪 维护保养 电磁阀 点火头 电荷注入检测器 RF发生器 |
| 收稿时间： | 2013/9/17 0:00:00 |
| 修稿时间： | 2014/5/21 0:00:00 |
The Maintenance of iCAP 6300 Inductively Coupled Plasma-Atomic Emission Spectrometrer |
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| ZHAO Qing-ling and LI Qing-cai.The Maintenance of iCAP 6300 Inductively Coupled Plasma-Atomic Emission Spectrometrer[J].Rock and Mineral Analysis,2014,33(5):767-772. |
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| Authors: | ZHAO Qing-ling and LI Qing-cai |
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| Institution: | Lunan Geo-engineering Exploration Institute of Shandong Province, Yanzhou 272100, China;School of Environmental Studies, China University of Geosciences (Wuhan), Wuhan 430074, China;Lunan Geo-engineering Exploration Institute of Shandong Province, Yanzhou 272100, China;School of Environmental Studies, China University of Geosciences (Wuhan), Wuhan 430074, China |
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| Abstract: | Inductively Coupled Plasma-Atomic Emission Spectrometer (ICP-AES) has played an important role in the detection of inorganic elements. After a period of usage, it was found that the solenoid valve for gas flow control shifted mechanically, and led to adversely impacting on the sampling system and data analysis. Frequent usage in continuous periods also caused attrition of the mechanic stopper and decreased the sensitivity of the instrument. The inductively coupled plasma was hard to ignite after a long period, however, the sample system and Ar concentration was normal when the instrument was checked. After careful analysis, the copper wire at the end of the igniting head was found to be rusted under the washout of high temperature tail gas. Therefore, the setup of a proper specification for ICP-AES operation is of great significance. Based on the practical experience in the operation of the iCAP 6300 instrument, a series of operations are described here to optimize the maintenance and improve the reliability of the instrument. The operations include calibrating gas flow using Manufacturing and Service software, and using C 193.091 nm spectrum for baseline calibration to CID detection. Moreover, the specification for maintenance of the igniting head, analysis database and de-ashing system is also illustrated, which is beneficial to improving the performance and utilization ratio of the equipment. |
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| Keywords: | Inductively Coupled Plasma-Atomic Emission Spectrometer maintenance solenoid valve ignition charge injection device radio frequency generator |
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