
【醫】 Lloyd's reagent
fatigue; put sb. to the trouble of; service; work
angstrom; dust
【化】 angstrm
【醫】 angstrom; tenthmeter
heart; mind; morals; virtue
family name; surname
reagent
【化】 reagent
【醫】 agentia; reagent
Lloyd's Reagent (勞埃德氏試劑) is a specialized chemical adsorbent material historically used in pharmaceutical and analytical chemistry. Its primary component is hydrated aluminum silicate (矽酸鋁水合物), processed through controlled calcination to achieve high surface area and selective adsorption properties.
This reagent derives its name from 19th-century British pharmacist Theophilus Waller Lloyd, who first documented its purification capabilities in alkaloid extraction processes. Key characteristics include:
Modern chromatography studies confirm its cation-exchange capacity (0.8-1.2 meq/g) contributes to molecular separation efficacy. While largely replaced by advanced chromatography media, it remains referenced in pharmacopeial monographs as a historical extraction agent.
Sources:
勞埃德氏試劑(Lloyd's reagent)是一種化學試劑,其具體信息和用途如下:
公開資料中關于該試劑的化學性質、具體生産工藝等信息較少。如需進一步了解,可聯繫相關供應商(如天津市百世化工有限公司)或查閱專業化學數據庫。
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