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Updated: Jan 7, 2026

Qualitative Identification of Carboxylic Acids, Boronic Acids, and Amines Using Cruciform Fluorophores
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基于酸-二醇识别的超敏感电化学检测

Runying Chai1, Hongyuan Guo2, Xuedong Jia1

  • 1College of Food Science and Engineering, Shanxi Agricultural University, Taigu 030801, China.

Food chemistry
|January 3, 2026
PubMed
概括

No abstract available in PubMed .

关键词:
酸二醇的识别咖啡酸电化学传感器多氨基酸)

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IR and UV–Vis Spectroscopy of Carboxylic Acids01:28

IR and UV–Vis Spectroscopy of Carboxylic Acids

In IR spectroscopy of carboxylic acids, the C=O bond shows a characteristic band between 1710 and 1760 cm⁻¹, and the O–H bond exhibits a broad band between 2500 and 3300 cm⁻¹.
However, the stretching absorptions for the C=O bond vary depending on the structure of carboxylic acids. The C=O bond of the free carboxylic acids shows a higher stretching frequency, 1760 cm−1, while H-bonded carboxylic acids (dimers) exhibit stretching absorptions at a lower frequency,...
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