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Updated: Jan 9, 2026

Analyzing the Photo-oxidation of 2-propanol at Indoor Air Level Concentrations Using Field Asymmetric Ion Mobility Spectrometry
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Analyzing the Photo-oxidation of 2-propanol at Indoor Air Level Concentrations Using Field Asymmetric Ion Mobility Spectrometry

Published on: June 14, 2018

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无化纳米膜启用光-色度测量双模式感应3-氧-2-butanone的3-氧-2-butanone

Xue Gu1, Xinyu Gou1, Yan Jiang1

  • 1Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education; Shaanxi Provincial Key Laboratory of New Concept Sensors and Molecular Materials; School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, P. R. China.

Analytical chemistry
|December 8, 2025
PubMed
概括

研究人员开发了一种新的光传感器,用于检测3-基-2-butanone (3H2B),这是一个关键的代谢物和生物标志物. 这种传感器提供超高灵敏度和快速,视觉检测3H2B,使得便携式分析.

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IR and UV–Vis Spectroscopy of Aldehydes and Ketones

Infrared spectroscopy, also known as vibrational spectroscopy, is mainly used to determine the types of bonds and functional groups in molecules. In aldehydes and ketones, the carbonyl (C=O) bond shows an absorption around 1710 cm-1. The C=O bond vibration of an aldehyde occurs at lower frequencies than that of a ketone. In addition to the C=O absorption in an aldehyde, the aldehydic C–H bond also gives two peaks in the 2700–2800 cm-1 range. This absorption, coupled with the...
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In aldehydes, the hydrogen atom connected to the carbonyl carbon helps distinguish aldehydes from other carbonyl compounds using ¹H NMR spectroscopy. The closeness of aldehydic hydrogen to the electrophilic carbonyl carbon highly deshields the hydrogen atom causing its signal to appear around 10 ppm in the ¹H NMR spectra. α hydrogens split the aldehydic proton signal, which helps identify the number of α hydrogens in the molecule. For instance, one α hydrogen creates a...
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