茶叶中咖啡因和儿茶素类物质的提取及含量测定
邵建群, 李青原, 王玉记, 张枫
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Shao Jianqun, Li Qingyuan, Wang Yuji, Zhang Feng
首都医科大学学报 . 2019, (5): 738 -743 .  DOI: 10.3969/j.issn.1006-7795.2019.05.014