Isolation and Structure Elucidation of Radical Scavengers from Thymus vulgaris Leaves von DAPKEVICIUS, Airidas, VAN BEEK, Teris A., LELYVELD, Gerrit P., VAN VELDHUIZEN, Albertus, DE GROOT, Aede, LINSSEN, Jozef P. H., VENSKUTONIS, Rimantas

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Screening of the needles of different yew species and cultivars for paclitaxel and related taxoids von van Rozendaal, Erik L.M, Lelyveld, Gerrit P, van Beek, Teris A

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Two validated HPLC methods for the quantification of alizarin and other anthraquinones in Rubia tinctorum cultivars von Derksen, Goverdina C. H., Lelyveld, Gerrit P., van Beek, Teris A., Capelle, Anthony, de Groot, Æde

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Sex-related perception of insect and plant volatiles in Lygocoris pabulinus von GROOT, A. T, TIMMER, R, GORT, G, LELYVELD, G. P, DRIJFHOUT, F. P, VAN BEEK, T. A, VISSER, J. H

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Preparative Isolation and Separation Procedure for Ginkgolides A, B, C, and J and Bilobalide von van Beek, Teris A, Lelyveld, Gerrit P

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Isolation and Structure Elucidation of Radical Scavengers from Thymus v ulgaris Leaves von Dapkevicius, Airidas, van Beek, Teris A, Lelyveld, Gerrit P, van Veldhuizen, Albertus, de Groot, Aede, Linssen, Jozef P. H, Venskutonis, Rimantas

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Isolation and identification of the five major sesquiterpene hydrocarbons of ginger von Van Beek, Teris A., Lelyveld, Gerrit P.

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Quantitation of bilobalide and ginkgolides A, B, C and J by means of nuclear magnetic resonance spectroscopy von van Beek, Teris A., van Veldhuizen, Albertus, Lelyveld, Gerrit P., Piron, Isabelle, Lankhorst, Peter P.

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Concentration of ginkgolides and bilobalide in Ginkgo biloba leaves in relation to the time of year von Beek, T.A. van (Agricultural Univ., Wageningen (Netherlands). Dept. of Organic Chemistry. Phytochemical Section), Lelyveld, G.P

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A simplified method for the determination of taxanes in yew needles by reversed-phase (C18) high pressure liquid chromatography von van Rozendaal, Erik L. M., Lelyveld, Gerrit P., van Beek, Teris A.

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Thin layer chromatography of bilobalide and ginkgolides A, B, C and J on sodium acetate impregnated silica gel von van Beek, Teris A., Lelyveld, Gerrit P.

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Investigation of the essential oil of Vietnamese ginger von van Beek, Teris A., Posthumus, Maarten A., Lelyveld, Gerrit P., Phiet, Hoàng V., Yen, Bùi T.

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