Search Results - "Richoll, Stephen M."
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Determination of methyl and ethyl esters of methanesulfonic, benzenesulfonic and p-toluenesulfonic acids in active pharmaceutical ingredients by solid-phase microextraction (SPME) coupled to GC/SIM-MS
Published in Journal of pharmaceutical and biomedical analysis (15-09-2005)“…The development, optimization and validation of an extraction method for methyl and ethyl esters of various sulfonic acids is presented. The extraction and…”
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Determination of triphenylphosphine oxide in active pharmaceutical ingredients by hollow-fiber liquid-phase microextraction followed by reversed-phase liquid chromatography
Published in Journal of Chromatography A (15-09-2006)“…A versatile procedure has been developed and validated for the determination of triphenylphosphine oxide (TPPO) at low levels in various active pharmaceutical…”
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Journal Article