电感耦合等离子体质谱的红外加热样品导入系统

IF 3.4 2区 化学 Q1 SPECTROSCOPY
D. Beauchemin
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引用次数: 3

摘要

这项工作涉及在Varian 820MS仪器上用现成的红外加热器加热整个商用样品引入系统。这种加热将灵敏度提高了2到16倍,其中高质量元件得到了最大的改善。它还将大多数分析物的检测限提高了1.1至3.5倍。以形成双氧化物为代价,双电荷物种的形成减少了3倍。随着红外加热,Be/Li信号比(等离子体稳健性的指标)从0.174增加到0.235。红外加热系统能够通过简单的外部校准准确分析饮用水标准参考物质(SRM)(Be、Mg、Al、Cr、Mn、Co、Cu、Zn和As)和废水SRM(Be,Mg、Cr、锰、钴、铜、锌、镉和铅)。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
An Infrared-Heated Sample Introduction System For Inductively Coupled Plasma Mass Spectrometry
This work involves heating the entire commercially available sample introduction system on a Varian 820MS instrument with off-the-shelf infrared heaters. This heating improves sensitivities by a factor of 2 to 16 times, with high mass elements receiving the greatest improvement. It also improves detection limits by a factor of 1.1 to 3.5 times for most analytes. At the price of doubled oxide formation, the formation of doubly charged species was decreased by a factor of 3. The Be/Li signal ratio, an indicator of plasma robustness, increased from 0.174 to 0.235 with infrared heating. The infrared-heated system enabled the accurate analysis of a drinking water standard reference material (SRM) (for Be, Mg, Al, Cr, Mn, Co, Cu, Zn and As) and of a waste water SRM (for Be, Mg, Cr, Mn, Co, Cu, Zn, Cd, and Pb) by simple external calibration.
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来源期刊
Atomic Spectroscopy
Atomic Spectroscopy 物理-光谱学
CiteScore
5.30
自引率
14.70%
发文量
42
审稿时长
4.5 months
期刊介绍: The ATOMIC SPECTROSCOPY is a peer-reviewed international journal started in 1962 by Dr. Walter Slavin and now is published by Atomic Spectroscopy Press Limited (ASPL). It is intended for the rapid publication of both original articles and review articles in the fields of AAS, AFS, ICP-OES, ICP-MS, GD-MS, TIMS, SIMS, AMS, LIBS, XRF and related techniques. Manuscripts dealing with (i) instrumentation & fundamentals, (ii) methodology development & applications, and (iii) standard reference materials (SRMs) development can be submitted for publication.
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