1998
DOI: 10.1016/s0021-9673(97)00906-0
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Selection of column and gradient elution system for the separation of catechins in green tea using high-performance liquid chromatography

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Cited by 201 publications
(123 citation statements)
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“…38,39 To obtain good separation, acetonitrile-water and methanolwater, both containing acid, were investigated as mobile phases. With methanol-water the peaks of compounds 6 and 7 always coeluted.…”
Section: Resultsmentioning
confidence: 99%
“…38,39 To obtain good separation, acetonitrile-water and methanolwater, both containing acid, were investigated as mobile phases. With methanol-water the peaks of compounds 6 and 7 always coeluted.…”
Section: Resultsmentioning
confidence: 99%
“…Além disso o uso de TFA diminui a ionização dos grupos fenólicos entre as separações. Portanto, a presença de ácido na fase móvel é essencial para a completa separação dos flavan-3-óis presentes na mistura, especialmente para a eliminação de cauda nos picos do cromatograma (Dalluge et al, 1998).…”
Section: Resultsunclassified
“…It has been demonstrated that some of them show strong antioxidant properties with beneficial, physiological, and anticarcinogenic properties for human health (Hertog et al, 1993;Tsuchiya et al, 1997;Dalluge et al, 1998). Because of higher peak capacity, selectivity, and resolution, LC Â LC systems have been investigated for the separation of these compounds, taking the advantage of the different selectivity of various RP columns.…”
Section: Lc 3 Lc Of Polyphenolic Antioxidantsmentioning
confidence: 99%