双聚焦与ICPMS技术综述

仪器资料 · 发表于 2019-4-24 07:36:30

双聚焦与ICPMS技术综述
An Overview of Magnetic Sector Inductively Coupled ICP and GD-MS

Although Inductively Coupled Plasma Quadrupole-based Mass Spectrometry (ICP-QMS) is a well established technique for multitrace element determinations, it has limitations due to plasma and matrix derived spectroscopic interferences that result in degeneration of detection limits and biased analytical results. Therefore, unambiguous separation of analyte ions from spectroscopic interferences is a prerequisite of accurate and precise elemental analysis. Several strategies have been employed to reduce these interference effects: tedious and contamination prone preconcentration and matrix separation procedures, correction equations, front-end sample introduction, plasma optimization, collision and reaction cells and high resolution magnetic sector ICP-MS (HR-MS-ICP-MS). In this overview we will focus on instrumentation and application of HR-MS-ICP-MS) and glow discharge (GD) MS for determination of low analyte concentrations in solutions and in solid samples.

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