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Updated: May 2, 2026

Online Size-exclusion and Ion-exchange Chromatography on a SAXS Beamline
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Published on: January 5, 2017

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逆光電子スペクトルのピーク分離方法:第2導関数,曲線フィッティング,解コンボーション解析を比較する

Ryotaro Nakazawa1, Haruki Sato1, Hiroyuki Yoshida1,2

  • 1Graduate School of Engineering, Chiba University, Chiba 263-8522, Japan.

The Review of scientific instruments
|February 19, 2026
PubMed
まとめ

低エネルギー逆光電子スペクトロスコーピー (LEIPS) は,未使用の電子状態の洞察を提供します. 本研究では,重複するピークを分析し,スペクトルの解像度を向上させるために不可欠な,LEIPSスペクトルのピーク分離方法を比較しています.

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Spin systems where the difference in chemical shifts of the coupled nuclei is greater than ten times J are called first-order spin systems. These nuclei are weakly coupled, and their chemical shifts and coupling constant can generally be estimated from the well-separated signals in the spectrum.
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The probability of having two carbon-13 atoms next to each other is negligible because of the low natural abundance of carbon-13. Consequently, peak splitting due to carbon-carbon spin-spin coupling is not observed in spectra. However, protons up to three sigma bonds away split the carbon signal according to the n+1 rule, resulting in complicated spectra.
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