SUPELCOSIL LC-DB phases are specially deactivated for basic compounds. These columns provide shorter retention, better peak shape, and higher efficiency for organic bases than can be obtained on other Type A silica reversed-phase columns.
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Journal of pharmaceutical and biomedical analysis, 24(5-6), 913-920 (2001-03-15)
RGH-1756 (1-(2-methoxy-phenyl)-4-(4-[4-(6-imidazo[2,1-b]-thiazolyl)-phenoxy]-butyl)-piperazine dimethansulphonate) is a novel atypical antipsychotic candidate of Gedeon Richter Ltd. A new HPLC method has been developed and validated for the quantitative determination of RGH-1756 in dog and rat plasma. The compound and the internal standard are
A rapid, isocratic method for the determination of tryptophan in Escherichia coli fermentation broths by reversed-phase HPLC is described. Tryptophan can be measured in fermentations containing either chemically defined media or media with hydrolyzed protein supplements. The procedure was rugged
Journal of chromatography. B, Biomedical sciences and applications, 755(1-2), 331-335 (2001-06-08)
A HPLC-UV determination of loratadine in human plasma is presented. After simple liquid-liquid extraction with 2-methylbutane-hexane (2:1) and evaporation of organic phase the compounds were re-dissolved in 0.01 M HCl, evaporated again and finally separated on a Supelcosil LC-18-DB column.
Therapeutic drug monitoring, 23(2), 163-168 (2001-04-11)
Recipients of organ transplants remain particularly dependent on prednisolone as part of their maintenance immunosuppression. Despite this, the pharmacokinetics of prednisolone have never been fully characterized in these patients, and consequently dosing remains empirical. Accurate monitoring of prednisolone, its primary
A rapid, sensitive and specific high-performance liquid chromatographic (HPLC) method for the separation and quantification of L-methionine in plasma has been developed. After derivatization of plasma amino acids with o-phthalaldehyde (OPA), a 50 microl sample was loaded on a reversed-phase
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