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Updated: Jan 14, 2026

Quantifying the Binding Interactions Between CuII and Peptide Residues in the Presence and Absence of Chromophores
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基于Anthrapyridone的氨基酸作为Cu2+离子测定颜色测量探针

Sergei A Chernenko1, Tatyana Yu Zheleznova1, Anton L Shatsauskas2

  • 1Omsk State Technical University, 11 Mira Ave., 644050 Omsk, Russia.

Analytical methods : advancing methods and applications
|October 24, 2025
PubMed
概括

新的炭皮和α-氨基酸衍生物使得可选择性和敏感的光度测定铜II) 电离子. 这些试剂提供了一种简单的,可视化的方法来检测微量铜,即使是用肉眼.

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相关概念视频

Precipitation Titration: Endpoint Detection Methods01:19

Precipitation Titration: Endpoint Detection Methods

In argentometric precipitation titrations, endpoints can be detected visually by the Mohr, Volhard, and Fajans methods. In the Mohr method, adding a soluble chromate indicator gives an initial yellow color to the analyte solution. As the titrant is added, the first excess of silver ions forms a red silver chromate precipitate, marking the endpoint. The solution pH should be maintained at about 8 by adding solid CaCO3.
In the Volhard method, a standard excess of AgNO3 is first added to the...
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Aryldiazonium Salts to Azo Dyes: Diazo Coupling01:11

Aryldiazonium Salts to Azo Dyes: Diazo Coupling

The reaction of weakly electrophilic aryldiazonium (also called arenediazonium) salts with highly activated aromatic compounds leads to the formation of products with an —N=N— link, called an azo linkage. This reaction, presented in Figure 1, is known as diazo coupling and occurs without the loss of the nitrogen atoms of the aryldiazonium salt. Highly activated aromatic compounds such as phenols or arylamines favor the diazo coupling reaction. The coupling generally occurs at the para...
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