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在同位素标记化实验中使用C缩酸盐:注意注意事项

Frédéric Leone1, Anic Imfeld1, Yeganeh Mirzaei1

  • 1Geotop and Department of Chemistry and Biochemistry, Concordia University, Montréal, Québec, Canada.

Isotopes in environmental and health studies
|December 15, 2023
PubMed
概括

盐酸 (HCl) 雾化用于去除无机碳可以导致低分子量有机化合物的损失,偏向C测量. 这项研究表明,HCl烟雾化和干燥显著减少了沉积物中的C-丰富的酸盐尖峰.

关键词:
酸性烟雾化是一种酸性烟雾化.生物地质化学生物地质化学碳-13是什么意思基本元素分析是指基本元素的分析.化试验的实验.同位素标签的标签有机碳是有机碳中的一种.稳定同位素追踪技术是稳定的同位素追踪技术.

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¹³C NMR: ¹H–¹³C Decoupling01:04

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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.
A broadband decoupling technique is used to simplify these complex, sometimes overlapping, signals. Broadband decoupling relies on a...
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