Extraction of isoflavone malonylglucosides from Tritolium pratense L

Autor: H. Lingeman, A. H. W. Toebes, W. H. O. Ernst, V. de Boer, Jos A.C. Verkleij

Publikováno v: Journal of Agricultural and Food Chemistry, 53(12), 4660-4666. American Chemical Society
Toebes, A H W, de Boer, V, Verkley, J A C, Lingeman, H & Ernst, W H O 2005, ' Extraction of isoflavone malonylglucosides from Tritolium pratense L. ', Journal of Agricultural and Food Chemistry, vol. 53, no. 12, pp. 4660-4666 . https://doi.org/10.1021/jf047995f

Extraction of isoflavone malonylglucosides from red clover (Trifolium pratense L.) is a complicated procedure. This is due to the relatively unstable character of the thermolabile glucoside malonates as well as by action of native β-glucosidases, re

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d89a859a1ad90131d5cf8d4e66d28382
https://doi.org/10.1021/jf047995f

Chiral ligand-exchange chromatography as the screening method for proposed modifications in exametazime synthesis to enhance diastereoselectivity

Autor: Sote Vladimirov, H. Lingeman, N. Nikolić, D. Veselinović, Katarina Karljikovic-Rajic

Publikováno v: Nikolic, N, Veselinovic, D, Vladimirov, S, Karljikovic-Rajic, K & Lingeman, H 2004, ' Chiral ligand-exchange chromatography as the screening method for proposed modifications in exametazime synthesis to enhance diastereoselectivity ', Journal of Pharmaceutical and Biomedical Analysis, vol. 34, no. 2, pp. 285-93 . https://doi.org/10.1016/S0731-7085(03)00551-X
Journal of Pharmaceutical and Biomedical Analysis
Journal of Pharmaceutical and Biomedical Analysis, 34(2), 285-93. Elsevier

Tc-99m(V)-d,l-HM-PAO complex is well-known radiopharmaceutical for regional cerebral blood flow imaging. The proposed modifications in exametazime, hexamethylpropyleneamine oxime (HM-PAO) (4,8-diaza-3,6,6,9-tetramethylundecane-2,10-dione bisoxime) sy

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https://hdl.handle.net/1871/31360

On-line coupling of SEC and RP–LC for the determination of structurally related enkephalins in cerebrospinal fluid

Autor: Willy J. M. Underberg, Thom Stroink, H. Lingeman, Jan Teeuwsen, Joop C. M. Waterval, Auke Bult, G. Wiese, Gerhardus J. de Jong

Publikováno v: Journal of Pharmaceutical and Biomedical Analysis, 30(4), 1393-401. Elsevier
Stroink, T, Wiese, G, Teeuwsen, J, Lingeman, H, Waterval, J C M, Bult, A, de Jong, G T & Underberg, W J M 2002, '
coupling of SEC and RP-LC for the determination of structurally related enkephalins in cerebrospinal fluid ', Journal of Pharmaceutical and Biomedical Analysis, vol. 30, no. 4, pp. 1393-401 . https://doi.org/10.1016/S0731-7085(02)00434-X

On-line coupled analytical techniques can be advantageous in the assay of smaller peptides in complex biological matrices such as plasma, cerebro-spinal fluid (CSF) and tissues. The present study shows the feasibility of the recently reported on-line

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::82ac67157d8e7e4571dccf6cff444248
https://doi.org/10.1016/s0731-7085(02)00434-x

On-line dialysis–SPE–CE of acidic drugs in biological samples

Autor: H. Lingeman, C. Gooijer, Nel H. Velthorst, U.A.Th. Brinkman, M. C. E. Groot, J. R. Veraart

Publikováno v: Veraart, J R, Groot, M C E, Gooijer, C, Lingeman, H, Velthorst, N H & Brinkman, U A T 1999, '
dialysis-SPE-CE of acidic drugs in biological samples. ', Analyst, vol. 124, pp. 115-118 . https://doi.org/10.1039/a807636g
Analyst, 124, 115-118
Analyst, 124, 115-118. Royal Society of Chemistry

A fully automated method is presented for the determination of acidic drugs in urine and serum using on-line dialysis-solid-phase extraction (SPE)-capillary electrophoresis (CE) with UV detection. With non-steroidal anti-inflammatory drugs (NSAIDs) a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4b5cf91f4b23e960c20d7c713de3778e
https://doi.org/10.1039/a807636g

Determination of phenprocoumon in plasma and urine using at-line solid-phase extraction-capillary electrophoresis

Autor: Nel H. Velthorst, U.A.T. Brinkman, Cees Gooijer, H. Lingeman, J. R. Veraart

Publikováno v: Journal of Pharmaceutical and Biomedical Analysis, 17, 1161-1166. Elsevier
Veraart, J R, Gooijer, C, Lingeman, H, Velthorst, N H & Brinkman, U A T 1998, ' Determination of phenprocoumon in plasma and urine using at-line solid-phase extraction-capillary electrophoresis. ', Journal of Pharmaceutical and Biomedical Analysis, vol. 17, pp. 1161-1166 . https://doi.org/10.1016/S0731-7085(98)00082-X

The use of capillary electrophoresis (CE) for the analysis of biological samples is rather problematic because of the large number of interferences present in the matrix. One of the possibilities to solve such problems is to couple solid-phase extrac

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9b8e4ad57af9ac912ea1a3007a4108f2
https://research.vu.nl/en/publications/3055cd31-b4d3-4f8c-a7ed-36e50cf53929