Zobrazeno 1 - 10
of 150
pro vyhledávání: '"Franke, JP"'
Publikováno v:
Journal of Chromatography B, 726(1-2), 149-156
Various beta(2)-agonists are used as illegal growth promoters in man and in animals. We developed a multiresidue procedure for the analysis of four beta-agonists in human and calf urine. The sample was pre-extracted with an Extrelut column at alkalin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=narcis______::5c7ce7b077b422dca93999d2d322bef5
https://research.rug.nl/en/publications/466d2a4e-5d34-483d-aabb-a79d18faf267
https://research.rug.nl/en/publications/466d2a4e-5d34-483d-aabb-a79d18faf267
Publikováno v:
Die Pharmazie, 3, 183-191
Pharmazie, 54(3), 183-191
Pharmazie, 54(3), 183-191
The chromatographic behaviour of thirty structurally related racemic 2-amidotetralins on a cis-(3R, 4S)-Whelk-O 1 stationary phase was investigated at five different temperatures between 50 and -15 degrees C using super- or subscritical fluid chromat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::58355dbbb871450945e5bc93b0a9db4e
https://research.rug.nl/en/publications/d86e4963-eafb-4e14-8392-a87f99221c33
https://research.rug.nl/en/publications/d86e4963-eafb-4e14-8392-a87f99221c33
Publikováno v:
Journal of capillary electrophoresis, 5(3-4), 159-164
Hilhorst, MJ, van Hout, MWJ, Somsen, GW, Franke, JP & de Jong, GJ 1998, ' Profiling of cocaine by micellar electrokinetic chromatography ', JOURNAL OF CAPILLARY ELECTROPHORESIS, vol. 5, no. 3-4, pp. 159-164 .
J. Cap. Elec., 159-164
STARTPAGE=159;ENDPAGE=164;TITLE=J. Cap. Elec.
JOURNAL OF CAPILLARY ELECTROPHORESIS, 5(3-4), 159-164. International Scientific Communications Inc.
Hilhorst, MJ, van Hout, MWJ, Somsen, GW, Franke, JP & de Jong, GJ 1998, ' Profiling of cocaine by micellar electrokinetic chromatography ', JOURNAL OF CAPILLARY ELECTROPHORESIS, vol. 5, no. 3-4, pp. 159-164 .
J. Cap. Elec., 159-164
STARTPAGE=159;ENDPAGE=164;TITLE=J. Cap. Elec.
JOURNAL OF CAPILLARY ELECTROPHORESIS, 5(3-4), 159-164. International Scientific Communications Inc.
The potential of micellar electrokinetic chromatography (MEKC) for the profiling of cocaine samples is described. An MEKC system containing sodium dodecyl sulfate (SDS) and methanol was optimized using a test mixture of cocaine, its common impurities
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::77fc1281246e0e1f19fde61a9e9b39b3
https://research.rug.nl/en/publications/feab0caa-e76c-4972-915a-166399611e1c
https://research.rug.nl/en/publications/feab0caa-e76c-4972-915a-166399611e1c
Publikováno v:
Chirality, 8(8), 574-578. Wiley
The direct enantiomeric separation of 32 racemic 2-amidotetralins on the commercially available tris-(3,5-dimethylphenylcarbamate) derivative of cellulose, coated on silica gel (Chiralcel OD), is presented. To date, the selection of a column for the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=narcis______::a0f222471ec47c511f8713d0c8b0a22a
https://research.rug.nl/en/publications/c9516757-e3f6-492d-9279-4862db45b09e
https://research.rug.nl/en/publications/c9516757-e3f6-492d-9279-4862db45b09e
Publikováno v:
Analytical letters, 28(15), 2635-2651
In ligand binding assays, the separation of bound and free fraction of the labeled ligand is very important. Dialysis is generally overlooked as separation technique since it requires large volumes and long analysis times. The availability of the AST
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=narcis______::a15bfb93719b55a959581617c4e2abcf
https://research.rug.nl/en/publications/1af4188d-71f1-4928-9147-eacf364bc397
https://research.rug.nl/en/publications/1af4188d-71f1-4928-9147-eacf364bc397
Publikováno v:
Journal of Chromatography A, 674(1-2), 87-95. ELSEVIER SCIENCE BV
The application of Bond-Elut Certify solid-phase extraction columns to the systematic toxicological analysis of whole blood was evaluated. The reproducibility of the extraction was tested with thirteen drugs varying in physico-chemical properties. An
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=narcis______::bfffa244220d9e103fafcd9802108ddf
https://research.rug.nl/en/publications/56e11a99-5d81-45fc-9e95-012d0996b1cc
https://research.rug.nl/en/publications/56e11a99-5d81-45fc-9e95-012d0996b1cc
Publikováno v:
Journal of Chromatography A, 641(1), 39-48. ELSEVIER SCIENCE BV
Attempts to separate the enantiomers of the novel adenosine antagonist N-0861, the racemic mixture of N-6-(endo-2-norbornyl)-9-methyladenine, by high-performance liquid chromatography are described. Owing to the very low efficiency and the lack of se
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=narcis______::abe16c302a3f2e5124c9f1001cfd8a61
https://research.rug.nl/en/publications/ea67f320-5e10-4e71-b24d-1540b183c53d
https://research.rug.nl/en/publications/ea67f320-5e10-4e71-b24d-1540b183c53d
Publikováno v:
Journal of Liquid Chromatography, 16(6), 1341-1354
The retention indices (RI) of 47 selected acidic, neutral and basic drugs were determined on 7 reversed-phase (octyl- and octadecylsilica) columns in two laboratories in the 1-nitroalkane scale, using either 1-nitroalkane homologues or selected drugs
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=narcis______::7386e34232749b7d5c402ba960fe1d21
https://research.rug.nl/en/publications/7b1a59d3-447e-46fd-9faf-ce6e17a74753
https://research.rug.nl/en/publications/7b1a59d3-447e-46fd-9faf-ce6e17a74753
Publikováno v:
Journal of forensic sciences, 37(4), 984-990
The impact of high temperatures (24 to 39-degrees-C) and low to moderately high humidities (20 to 70%) on the applicability of TLC systems for drug identification was studied during a 6 month climatologic cycle in Burkina Faso (West Africa). In gener
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=narcis______::b078bd8542f936927cfea077dbb7a7d4
https://research.rug.nl/en/publications/64a48a30-59f9-4802-827f-1d11a912ecec
https://research.rug.nl/en/publications/64a48a30-59f9-4802-827f-1d11a912ecec
Publikováno v:
Chirality, 4(6), 389-394. Wiley
In the present study 21 different chiral aminotetralins were used to investigate the mechanism behind their enantiomeric resolution (R(s)) on a commercially available high-performance liquid chromatography (HPLC) cellulose tris-3,5-dimethylcarbamate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=narcis______::3c59802a0f53e8a6527cea1f6ac53894
https://research.rug.nl/en/publications/4b70333e-1429-4d2d-912e-a99edb94bc89
https://research.rug.nl/en/publications/4b70333e-1429-4d2d-912e-a99edb94bc89