作者: Andreas Finger , Susanne Kuhr , Ulrich H. Engelhardt
DOI: 10.1016/0021-9673(92)85685-M
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摘要: Modern chromatographic techniques such as high-performance liquid chromatography are currently the most helpful approach to routine analysis of and research non-volatile tea constituents. Using these some errors in more classical analytical could be detected. Unfortunately, methods still widespread use, even official methods. However, knowledge especially polyphenols is lacking, for many minor no determination exist.