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《JOURNAL OF JINAN UNIVERSITY(NATURAL SCIENCE & MEDICINE EDITION)》 1996-01
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Analysis of Primary Speciation of Cu、Zn、Mn、Fe、Mg、Na、Ca and K in Ilex Latifotia Thumb

Lin Chaoping(Analysis and Measurement Center, Jinan University,510632,Guangzhou)  
Primary Speciation Analysis of Cu.Zn.Mn.Fe.Mg.Na.Ca and K in flex Latifotia Thumb(a sort of tea used as a folk drink in ancient China, produced in Dabu county,Guangdong Province)by different ways of making were carried out. Based on the determination of above elements in tea prepared in 100℃ and 80℃ as well as the residual terleaves some correlated parameters of primary speciation analysis were calculated.The rate of extraction of the.eight elements in boiling tea is obvious better than in infusing tea.The best the rate of extraction is K(T= 69%~84%).The rate of extraction of Ca and Fe are worse than others(T15%).There are as many the rate of extraction in infusing tea in 100℃ as in 80℃.
【CateGory Index】: R284.1
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