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| 1 | Solvent systems for countercurrent hromatography:An aqueous two phase liquid system based on a room temperature ionic liquid显示文摘 | Maria Jose Ruiz-Angel Veronica Pino Samuel CardaBroch Alain Berthod | | 0，，： | 1 |
| 2 | A catalytic method for the reduction of secondary and ter- tiary phosphineoxides 显示文摘 | BERTHOD M ALAIN F R MOHAMAD J | 2007 | Synlett2007，10，： | 1 |
| 3 | Test to evaluate countercurrent chromatographs 显示文摘 | Berthod Alain Billardello B | 2000 | J Chromatography A2000，902，5： | 1 |
| 4 | Bonded ionic liquid polymeric material for solid-phase microextraction GC analysis显示文摘 | Eranda Wanigasekara Sirantha Perera Jeffrey A. Crank Leonard Sidisky Robert Shirey Alain Berthod Daniel W. Armstrong | 2010 | Analytical and Bioanalytical Chemistry2010，，： | 1 |
| 5 | Mass spectrometry detection of basic drugs in fast chiral analyses with vancomycin stationary phases显示文摘Current trends in chiral analysis of pharmaceutical drugs are focused on faster separations and higher separation efficiencies. Core-shell or superficially porous particles(SPP) based chiral stationary phases(CSPs) provide reduced analysis times while maintaining high column efficiencies and sensitivity. In this study, mobile phase conditions suitable for chiral analyses with electrospray ionization LC-MS were systematically investigated using vancomycin as a representative CSP. The performance of a 2.7 mm SPP based vancomycin CSP(SPP-V) 10 cm×0.21 cm column was compared to that of a corresponding 5 mm fully porous particles based analogue column. The results demonstrated that the SPP-V column provides higher efficiencies, 2–5 time greater sensitivity and shorter analysis time for a set of 22 basic pharmaceutical drugs. The SPP-V was successfully applied for the analysis of the degradation products of racemic citalopram whose enantiomers could be selectively identified by MS. | Hongyue Guo M.Farooq Wahab Alain Berthod Daniel W.Armstrong | 2018 | Journal of Pharmaceutical Analysis2018，8，5： | 1 |
| 6 | Practice and mechanism of HPLC oligosaccharide separation with a cyclodextrin bonded phase显示文摘 | Alain Berthod Samuel S.C. Chang John P.S. Kullman Daniel W. Armstrong | 1998 | Talanta1998，，4： | 1 |
| 7 | Role of the carbohydrate moieties in chiral recognition on telcoplanin-based LC stationary phases显示文摘 | Berthod Alain CHEN Xianghong | 2000 | Anal Chem2000，72，8： | 1 |
| 8 | Screening primary racemic amines for enantioseparation by derivatized polysaccharide and cyclofructan columns显示文摘It is a challenge to separate the enantiomers of native chiral amines prone to deleterious silanol interactions. Aset of 39 underivatized chiral primary amines was screened for enantiomeric separation. Seven recentlyintroduced commercial chiral columns were tested. They included six polysaccharide based chiral stationaryphases (CSP) with bonded derivatives, ChiralPak? IA, IB, IC, ID, IE and IF columns and a cyclofructanderivatized CSP, Larihc? CF6-P column. Both the normal phase (NP) mode with heptane/alcohol mobile phasesand the polar organic (PO) mode with acetonitrile/alcohol were evaluated. It was found that the cyclofructanbased CSP demonstrated the highest success rate in separating primary amines in the PO mode with only onechiral amine not resolved. It is shown that, when screening the columns, there is no standard optimal condition;an excellent mobile phase composition for one column may be poorly suited to another one. Althoughbutylamine was a good mobile phase additive for the polysaccharide columns in both PO and NP modes, it wasdetrimental to the enantio-recognition capability of the cyclofructan column. Triethylamine was the appropriatesilanol screening agent for this latter column. | Yeeun Lim Zachary S.Breitbach Daniel W.Armstrong Alain Berthod | 2016 | Journal of Pharmaceutical Analysis2016，6，6： | 0 |
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