Cody Robert B, Fouquet Thierry
JEOL USA, Inc., 11 Dearborn Rd., Peabody, MA, 01960, USA.
Research Institute for Sustainable Chemistry, National Institute for Advanced Industrial Science and Technology (AIST), Tsukuba, 305-8565, Japan.
J Am Soc Mass Spectrom. 2019 Jul;30(7):1321-1324. doi: 10.1007/s13361-019-02203-9. Epub 2019 May 6.
Elemental compositions are commonly determined from the exact m/z of the monoisotopic peak, which is often the lightest isotope. However, the lightest isotope peak is often weak or absent and the monoisotopic peak can be difficult to identify for organometallics, polyhalogenated compounds, or large molecules. An alternative approach using the abundant isotope for elemental composition determinations is presented here.
元素组成通常由单同位素峰的确切质荷比（m/z）来确定，该峰通常是最轻的同位素。然而，最轻同位素峰往往很弱或不存在，对于有机金属化合物、多卤代化合物或大分子来说，单同位素峰可能难以识别。本文介绍了一种使用丰度较高的同位素进行元素组成测定的替代方法。
Zotero 插件