References of "Poukens-Renwart, P"
     in
Bookmark and Share    
Full Text
Peer Reviewed
See detailDensitometric Evaluation of Spiraeoside after Derivatization in Flowers of Filipendula Ulmaria (L.) Maxim
Poukens-Renwart, P.; Tits, Monique ULg; Wauters, Jean-Noël ULg et al

in Journal of Pharmaceutical & Biomedical Analysis (1992), 10(10-12, Oct-Dec), 1085-8

Spiraeoside (quercetin-4'-glucoside) is the major and most caharacteristic flavonoid of Filipendula ulmaria flowers and is not found in the leaves and stems. This paper describes a quantification of ... [more ▼]

Spiraeoside (quercetin-4'-glucoside) is the major and most caharacteristic flavonoid of Filipendula ulmaria flowers and is not found in the leaves and stems. This paper describes a quantification of spiraeoside by HPTLC densitometry after derivatization with diphenylboric acid -2-aminoester. The fluorescence of this flavonoid was measured at 330 nm. the spiraeoside content in batches of Filipendula ulmaria flowers ranged from 3 to 4.3 %. It is of note that these results are similar to those published elsewhere after HPLC analysis of other batches. [less ▲]

Detailed reference viewed: 63 (1 ULg)
Full Text
Peer Reviewed
See detailReversed-Phase Hptlc Densitometric Evaluation of Fraxin in Fraxinus Excelsior Leaves
Poukens-Renwart, P.; Tits, Monique ULg; Wauters, Jean-Noël ULg et al

in Journal of Pharmaceutical & Biomedical Analysis (1992), 10(10-12, Oct-Dec), 1089-91

The present work describes a rapid and selective assay for fraxin based on its characteristic fluorescent properties by densitometry on reversed-phase HPTLC plates. Two chromatographgic procedures ... [more ▼]

The present work describes a rapid and selective assay for fraxin based on its characteristic fluorescent properties by densitometry on reversed-phase HPTLC plates. Two chromatographgic procedures (Silicagel and RP 18) have been assessed and the results compared to those obtained by reversed-phase HPLC on ODS-silica. The amount of fraxin found in six commercial batches of Fraxinus excelsior leaves ( based on dry weight) ranged from 0.1 to 0.2%. [less ▲]

Detailed reference viewed: 35 (0 ULg)