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Updated: Jul 26, 2026

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使用CoWO4@CNT与水凝修改的电化学生物传感器同时检测出汗中的氨酸和尿酸

Xin Zeng1, Xuheng Li1, Yong Zhang1

  • 1Key Laboratory for Biological Science and Technology of Ministry of Education, Bioengineering College of Chongqing University, Chongqing 400044, PR China. houcj@cqu.edu.cn.

Analytical methods : advancing methods and applications
|August 19, 2024
PubMed
概括

研究人员开发了一种新型传感器,可以同时检测出汗中的尿酸和氨酸. 穿戴式健康监测的这一进步通过汗水分析提供了对生理状况的实时洞察.

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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...