Search Results - "Yehl, Peter M."
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A strategic approach towards mass balance investigations in pharmaceutical drug substance release testing: A peculiar out of specification case study encountered during API manufacture
Published in Journal of pharmaceutical and biomedical analysis (20-01-2024)“…Mass balance in drug substances release testing is a critical quality attribute in pharmaceutical manufacturing that continues to challenge modern analytical…”
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Two-dimensional reversed phase-normal phase liquid chromatography for simultaneous achiral-chiral analysis to support high-throughput experimentation
Published in Journal of Chromatography A (15-03-2023)“…•Development of a RPLCNPLC two-dimensional liquid chromatography system.•Simultaneous achiral-chiral analysis to support high-throughput…”
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Deep eutectic solvents as green and sustainable diluents in headspace gas chromatography for the determination of trace level genotoxic impurities in pharmaceuticals
Published in Journal of pharmaceutical and biomedical analysis (15-07-2024)“…Genotoxic impurities (GTIs) are potential carcinogens that need to be controlled down to ppm or lower concentration levels in pharmaceuticals under strict…”
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Determination of trace level genotoxic impurities in small molecule drug substances using conventional headspace gas chromatography with contemporary ionic liquid diluents and electron capture detection
Published in Journal of Chromatography A (26-09-2014)“…•A novel methodology using ionic liquids as diluents for headspace GC.•Greatly broadening the applicability of headspace GC for high boiling…”
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Practical aspects of fast HPLC separations for pharmaceutical process development using monolithic columns
Published in Analytica chimica acta (11-10-2004)“…A large number of samples can be generated during pharmaceutical process development. Fast separation for these samples is usually challenging due to the…”
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Deep eutectic solvents as green and sustainable diluents in headspace gas chromatography for the determination of trace level genotoxic impurities in pharmaceuticals
Published in Journal of pharmaceutical and biomedical analysis (28-03-2024)“…Genotoxic impurities (GTIs) are potential carcinogens that need to be controlled down to ppm or lower concentration levels in pharmaceuticals under strict…”
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Total synthesis of a second generation HIV protease inhibitor
Published in Tetrahedron: asymmetry (14-11-2003)“…An efficient stereoselective preparation of HIV protease inhibitor (+)- 1 was synthesized on multi-kilogram scale in 16 steps without the use of…”
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