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Updated: May 2, 2026

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使用来自Clerodendrum wallichii花的N-化碳点进行高度选择性的银离子检测

Aphinya Thinthasit1, Phongsakorn Kantang1, Indra Memdi Khoris2

  • 1Department of Integrated Science, Faculty of Science, Khon Kaen University, Khon Kaen, 40002, Thailand.

Scientific reports
|July 2, 2025
PubMed
概括

这项研究引入了一种新的光传感器,使用来自植物花的化碳点 (NCD) 来检测水中的有毒银离子 (Ag+). NCD传感器为环境监测提供了一种灵敏,环保和具有成本效益的方法.

关键词:
克莱罗登德鲁姆 (Clerodendrum) 是一种有机植物.生物传感器是一种生物传感器.碳点 (CD) 是指一个碳点.N-doped碳点 (NCDs) 是一种水热气体.银离子是一种银离子.

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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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