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Updated: Jul 3, 2025

Real-time Breath Analysis by Using Secondary Nanoelectrospray Ionization Coupled to High Resolution Mass Spectrometry
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Real-time Breath Analysis by Using Secondary Nanoelectrospray Ionization Coupled to High Resolution Mass Spectrometry

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一种可视化方法,用于快速检测呼吸凝结物中的酸盐离子,使用便携式闭双极电化学传感器

Afsaneh Azhdeh1, Mohammad Hossein Mashhadizadeh1,2, Kristian Birk Buhl3

  • 1Faculty of Chemistry, Kharazmi University, Tehran, Iran. Afsaneh.azhdeh@gmail.com.

The Analyst
|February 12, 2024
PubMed
概括

一个新的便携式传感器非侵入性地测量了呼出的呼吸中的炎症生物标志物. 这种与智能手机连接的设备可以检测呼吸凝结物中的酸盐离子,有助于早期发现呼吸系统疾病.

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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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