Title of article
Rapid determination of caffeine in tea leaves
Author/Authors
Horie، نويسنده , , Hideki and Nesumi، نويسنده , , Atsushi and Ujihara، نويسنده , , Tomomi and Kohata، نويسنده , , Katsunori، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2002
Pages
3
From page
271
To page
273
Abstract
For the purpose of efficient screening of low-caffeine tea shoots, a method for the rapid determination of caffeine was developed using high-performance liquid chromatography. Polyvinylpolypyrrolidone was packed in a pre-column and used to remove polyphenols from tea extracts on-line. The concentrations of caffeine extracted from powdered tea leaves at 50°C during 1 day could be analyzed in 2–5 min intervals. The pre-column and the analytical column could be used for the analysis of more than 2000 samples.
Keywords
Polyphenols , caffeine
Journal title
Journal of Chromatography A
Serial Year
2002
Journal title
Journal of Chromatography A
Record number
1508761
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