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解锁欧洲茶园的基本特征:对茶叶可追溯性的影响

Federico Girolametti1, Anna Annibaldi1, Silvia Illuminati1

  • 1Department of Life and Environmental Sciences, Università Politecnica delle Marche, 60131 Ancona, Italy.

Food chemistry
|May 18, 2024
PubMed
概括

来自不同欧洲花园的茶叶表现出独特的元素配置,不受加工的影响. 这些资料可以帮助追踪茶叶的来源,提高产品的真实性和安全性.

关键词:
生物积累 生物积累 生物积累这些元素元素.欧洲欧洲欧洲欧洲欧洲欧洲欧洲土壤 土壤土壤.茶叶 茶叶 茶叶 茶叶可追溯性 可追溯性

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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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