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首页> 外文期刊>Journal of analytical chemistry >Isotope analysis of (GeH4)-Ge-72, (GeH4)-Ge-73, (GeH4)-Ge-74, and (GeH4)-Ge-76 monogermanes by inductively-coupled plasma high-resolution mass spectrometry (ICP-MS)
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Isotope analysis of (GeH4)-Ge-72, (GeH4)-Ge-73, (GeH4)-Ge-74, and (GeH4)-Ge-76 monogermanes by inductively-coupled plasma high-resolution mass spectrometry (ICP-MS)

机译：电感耦合等离子体高分辨率质谱（ICP-MS）对（GeH4）-Ge-72，（GeH4）-Ge-73，（GeH4）-Ge-74和（GeH4）-Ge-76单锗烷的同位素分析）

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摘要

A possibility of using inductively-coupled plasma high-resolution mass spectrometry for the isotope analysis of monogermanes enriched with isotopes 72, 73, 74, and 76 has been studied. The effects of isobaric and polyatomic interferences in the spectrum of germanium isotopes have been discussed. It has been shown that the signal intensities of (i) GeH+ ions formed in the inductively coupled plasma are 0.00001-0.0001 of the intensity of the (i) Ge+ signal. This can result in the overestimation of the found concentration of an isotope with a higher mass number next to the main isotope in recording spectra in the low and medium resolution mode. Approaches ensuring the determination of the isotope composition of highly-enriched monogermanes with the range of isotope concentrations extending five orders of magnitude have been proposed.
机译：研究了使用电感耦合等离子体高分辨率质谱法对富含同位素72、73、74和76的单锗烷进行同位素分析的可能性。已经讨论了等压和多原子干扰对锗同位素光谱的影响。已经表明，在感应耦合等离子体中形成的（i）GeH +离子的信号强度是（i）Ge +信号强度的0.00001-0.0001。在低分辨率和中分辨率模式下，这可能会导致高估记录质量的同位素浓度高出记录在主要同位素旁边。已经提出了确保确定高度浓缩的单锗烷的同位素组成的方法，其同位素浓度范围扩展了五个数量级。

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