Zobrazeno 1 - 10 of 10 pro vyhledávání: '"Véronique Piette"'
1
Enantiomer separation of N-protected amino acids by non-aqueous capillary electrophoresis and high-performance liquid chromatography with tert.-butyl carbamoylated quinine in either the background electrolyte or the stationary phase
Autor: Véronique Piette, Jacques Crommen, Michael Lämmerhofer, Wolfgang Lindner
Publikováno v: Journal of Chromatography A. 987:421-427
A non-aqueous CE method was developed for evaluating the chiral discrimination potential of cinchona alkaloids and different kinds of carbamoylated derivatives of quinine and quinidine type chiral selectors towards acidic analytes, in particular a se
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::251db1e54d4734804afe7afb276b01e5
https://doi.org/10.1016/s0021-9673(02)01465-6
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2
Evaluation of enantioselective nonaqueous ion-pair capillary electrophoresis as screening assay in the development of new ion exchange type chiral stationary phases
Autor: Jacques Crommen, Elfriede Zarbl, Véronique Piette, Michael Lämmerhofer, Wolfgang Lindner
Publikováno v: Journal of Separation Science. 24:706-716
This study evaluates how enantioselectivity values for the separation of chiral N-derivatized amino acids achieved in non-aqueous ion-pair CE with cinchona alkaloid derived chiral counter-ions are related quantitatively to those obtained in enantiose
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::00d2a6ac2f02043f574d887fa6526b7d
https://doi.org/10.1002/1615-9314(20010901)24:9<706::aid-jssc706>3.0.co
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3
Enantioseparation of anionic analytes by non-aqueous capillary electrophoresis using quinine and quinidine derivatives as chiral counter-ions
Autor: Véronique Piette, Jacques Crommen, Wolfgang Lindner
Publikováno v: Journal of Chromatography A. 894:63-71
A non-aqueous capillary electrophoretic method developed for the enantioseparation of N-protected amino acids has been applied to the investigation of five new quinine and quinidine derivatives as chiral selectors: 1-adamantyl carbamoylated quinine,
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a72a00aac19f8451d24df185810fa48f
https://doi.org/10.1016/s0021-9673(00)00710-x
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4
High-performance liquid chromatographic enantioseparation of N-protected ?-amino acids using nonporous silica modified by a quinine carbamate as chiral stationary phase
Autor: Michael Lämmerhofer, Véronique Piette, Wolfgang Lindner, Klaus Bischoff
Publikováno v: Chirality. 9:157-161
In this study, tert-butyl carbamoylated quinine as chiral selector was immobilized on nonporous silica (NPS) 1.5 μm particles developed by MICRA, and this new chiral stationary phase (CSP) was packed into a 3.3 cm column (4.6 mm ID). A series of var
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::194b7f7277cf628a8da6711ee904535d
https://doi.org/10.1002/(sici)1520-636x(1997)9:2<157::aid-chir15>3.0.co
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6
Enantiomeric separation of N-protected amino acids by non-aqueous capillary electrophoresis with dimeric forms of quinine and quinidine derivatives serving as chiral selectors
Autor: Jacques Crommen, Wolfgang Lindner, Véronique Piette
Publikováno v: Journal of chromatography. A. 948(1-2)
A non-aqueous capillary electrophoretic method with quinine and tert.-butyl carbamoylated quinine as chiral selectors was developed previously for the enantioseparation of N-protected amino acids. This system was here applied as a screening tool for
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c5d82a55080c512a6c70be4ef6ba2c25
https://pubmed.ncbi.nlm.nih.gov/12831205
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7
Analysis of illicit amphetamine seizures by capillary zone electrophoresis
Autor: Frans Parmentier, Véronique Piette
Publikováno v: Journal of chromatography. A. 979(1-2)
Capillary zone electrophoresis was applied for the determination of amphetamine and related substances in seized drugs. A buffer made of 0.1 M phosphoric acid adjusted to pH 3.0 with triethanolamine was selected. With this background electrolyte, tri
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::68bf44c4929cf2bca0dc39d6ed6ef683
https://pubmed.ncbi.nlm.nih.gov/12498266
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8
Non-aqueous capillary electrophoretic enantioseparation of N-derivatized amino acids using cinchona alkaloids and derivatives as chiral counter-ions
Autor: Jacques Crommen, Véronique Piette, Wolfgang Lindner, Marianne Fillet
Publikováno v: Journal of chromatography. A. 875(1-2)
A non-aqueous capillary electrophoretic method developed with quinine and tert.-butyl carbamoylated quinine as chiral selectors for the enantioseparation of N-protected amino acids was applied to the investigation of other quinine derivatives as chir
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aefa08c1ba1f88a26521675cec1e7763
https://pubmed.ncbi.nlm.nih.gov/10839155
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9
Separation of nonsteroidal anti-inflammatory drugs by capillary electrophoresis using nonaqueous electrolytes
Autor: Véronique Piette, Jacques Crommen, Marianne Fillet, Isabelle Bechet
Publikováno v: Electrophoresis. 20(9)
So far, most capillary electrophoresis (CE) separationshave been carried out in aqueous or, to a lesser extent,mixed aqueous–organic media. Organic solvents havemainly been used in micellar electrokinetic chromatogra-phy (MEKC) and in capillary ele
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6e39b0c31c057a5d1930a7521fbb3281
https://pubmed.ncbi.nlm.nih.gov/10445335
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