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More than 50% of pharmaceuticals in current use are chiral compounds. Enantiomers of the same pharmaceutical have identical physicochemical properties, but may exhibit differences in pharmacokinetics, pharmacodynamics and toxicity. The advancement in separation and detection methods has made it possible to analyze trace amounts of chiral compounds in environmental media. As a result, interest on chiral...
We report for the first time the effect of liophilic mobile phase additives on the mechanism of chiral recognition of basic chiral pharmaceutical on a vancomycin based chiral stationary phase (CSP). Using methanol as the mobile phase and 0.005% formic acid as pH modifier, we evaluated the effect of different concentrations of three types of liophilic anions, formate (HCOO − ), nitrate (NO...
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