Zobrazeno 1 - 10
of 167
pro vyhledávání: '"U, Pyell"'
Autor:
D. Barceló, S. Lacorte, G. V. Garner, A. P. Gize, B. Mile, M. Cooke, S. A. Westwood, U. Pyell, R. D. Coker
Publikováno v:
Chromatographia. 54:120-124
Publikováno v:
Forensic science international. 233(1-3)
The most common clandestine manufacturing procedure for the ecstasy derivative 3,4-methylenedioxymethamphetamine (MDMA), is the reductive amination of piperonylmethylketone (PMK) via platinum(IV) oxide/hydrogen. Deviations of the reaction conditions
Publikováno v:
Journal of Chromatography A. 634:169-181
An electron-donor and various electron-acceptor (EA) phases were evaluated for the separation of thirteen tetrachlorodibenzo-p-dioxin isomers in both the reversed- and normal-phase modes. It was shown that the selectivity on EA phases can be enhanced
Publikováno v:
Journal of Chromatography A. 628:3-10
The retention orders of tetrachlorodibenzo- p -dioxin (TCDD) isomers on a monomeric and a polymeric ODS column were determined by RP-HPLC. It is demonstrated that the drastic alteration of the retention order with variation of the stationary phase ca
Autor:
U, Pyell
Publikováno v:
Advances in chromatography. 41
Autor:
A, Dworschak, U, Pyell
Publikováno v:
Journal of chromatography. A. 855(2)
In micellar electrokinetic chromatography (MEKC) with cationic surfactants the migration window is significantly narrower than with anionic surfactants. In order to overcome this disadvantage of cationic surfactants, it is investigated whether it is
Publikováno v:
Chromatographia. 54:547-548
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