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Surface Enhanced Raman Spectroscopy Detection of Biomolecules Using EBL Fabricated Nanostructured Substrates
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基于各种形态SERS传感器的黑茶中混合染料的同时检测

Qingqing Cui1, Jingfei Shen1, Huiyan Jia1

  • 1State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei 230036, China.

Food research international (Ottawa, Ont.)
|December 10, 2024
PubMed
概括

一个新的传感器可以在3分钟内准确检测黑茶中的非法染料. 这种快速的方法通过识别常见的染物来加强茶叶安全控制和质量评估.

关键词:
奸淫的行为 奸淫的行为黑茶是什么 黑茶是什么 黑茶是什么食品安全 食品安全纳米传感器的使用同时进行痕迹检测检测.表面增强的拉曼光谱学

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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 result, EDTA...