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Updated: Jul 6, 2025

Design and Development of Aptamer–Gold Nanoparticle Based Colorimetric Assays for In-the-field Applications
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基于聚合物移植纳米粒子的水溶液中多离子的高度选择性和灵敏的识别,作为视觉色度传感器的色度传感器

Bahareh Heidari1, Pourya Zarshenas1, Roya Sedghi2

  • 1Department of Polymer and Materials Chemistry, Faculty of Chemistry and Petroleum Sciences, Shahid Beheshti University, GC, Tehran, 1983969411, Iran.

Scientific reports
|January 3, 2024
PubMed
概括

一个新的聚合物植入的纳米粒子传感器能够用肉眼检测水中的重金属离子,如和. 这种具有成本效益的方法为环境监测提供了快速,选择性和敏感的结果.

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Effects of EDTA on End-Point Detection Methods01:18

Effects of EDTA on End-Point Detection Methods

Different methods, such as visual observance of metal-ion indicators, spectroscopic techniques, and potentiometric methods, can determine the endpoint of an EDTA titration.
In the visual method, metal-ion indicators (metallochromic dyes), which have distinct colors in their free and complex forms, are added to the mixture to signal the titration's end point. They form stable complexes with metal ions, but these complexes are weaker than the corresponding metal–EDTA complexes. As a...
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