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Updated: May 30, 2025

Real-time Breath Analysis by Using Secondary Nanoelectrospray Ionization Coupled to High Resolution Mass Spectrometry
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基于多周期光谱重建神经网络的PPB水平检测呼吸氧化

Rui Zhu1, Jie Gao1, Qi Tian2

  • 1School of Electrical Engineering, Yanshan University, Qinhuangdao 066004, China.

Analytical chemistry
|January 29, 2025
PubMed
概括

一个新的呼吸氧化 (NO) 传感器使用光谱重建和神经网络进行准确的实时检测. 这种非侵入性工具通过分析呼出的NO水平来帮助诊断呼吸道炎症.

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相关概念视频

¹³C NMR: ¹H–¹³C Decoupling01:04

¹³C NMR: ¹H–¹³C Decoupling

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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