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首页> 外文期刊>European journal of mass spectrometry >Development of a novel mass spectrometer equipped with an electron cyclotron resonance ion source
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Development of a novel mass spectrometer equipped with an electron cyclotron resonance ion source

机译：配备电子回旋共振离子源的新型质谱仪的开发

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The ionization efficiency of an electron cyclotron resonance ion source (ECRIS) is generally high and all elements can be fundamentally ionized by the high-temperature plasma. We focused our attention on the high potentiality of ECRIS as an ion source for mass spectrometers and attempted to customize a mass spectrometer equipped with an ECRIS. Precise measurements were performed by using an ECRIS that was specialized and customized for elemental analysis. By using the charge-state distribution and the isotope ratio, the problem of overlap, such as that observed in the spectra of isobars, could be solved without any significant improvement in the mass resolution. When the isotope anomaly (or serious mass discrimination effect) was not observed in ECR plasma, the system was found to be very effective for isotope analysis. In this paper, based on the spectrum (ion current as a function of an analyzing magnet current) results of low charged state distributions (2+, 3+, 4+,...) of noble gases, we discuss the feasibility of an elemental analysis system employing an ECRIS, particularly for isotopic analysis. The high-performance isotopic analysis obtained from an ECRIS mass spectrometer in this study suggests that it can be widely applied to several fields of scientific study that require elemental or isotopic analyses with high sensitivity.
机译：电子回旋共振离子源（ECRIS）的电离效率通常很高，并且所有元素都可以通过高温等离子体从根本上电离。我们将注意力集中在ECRIS作为质谱仪离子源的高潜力上，并尝试定制配备ECRIS的质谱仪。通过使用专门针对元素分析定制的ECRIS进行精确测量。通过使用电荷态分布和同位素比率，可以解决重叠问题，例如在等压线光谱中观察到的重叠问题，而不会显着提高质量分辨率。当在ECR等离子体中未观察到同位素异常（或严重的质量区分效应）时，发现该系统对于同位素分析非常有效。本文基于稀有气体的低电荷态分布（2 +，3 +，4 +，...）的光谱（离子电流是分析磁体电流的函数）的结果，我们讨论了一种稀有气体的可行性。使用ECRIS的元素分析系统，特别是用于同位素分析的系统。从这项研究中从ECRIS质谱仪获得的高性能同位素分析表明，它可以广泛应用于需要高灵敏度元素或同位素分析的多个科学研究领域。

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