Search Results - "Lee, Jauh T."

Separation of peptides on superficially porous particle based macrocyclic glycopeptide liquid chromatography stationary phases: consideration of fast separations by Wimalasinghe, Rasangi M., Breitbach, Zachary S., Lee, Jauh T., Armstrong, Daniel W.

“…Macrocyclic glycopeptide based liquid chromatography stationary phases are known for their highly selective peptide separations. Fast and ultrafast ( t R  <…”
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A comprehensive methodology for the chiral separation of 40 tobacco alkaloids and their carcinogenic E/Z-(R,S)-tobacco-specific nitrosamine metabolites by Hellinghausen, Garrett, Roy, Daipayan, Wang, Yadi, Lee, Jauh T., Lopez, Diego A., Weatherly, Choyce A., Armstrong, Daniel W.

“…The predominant enantiomer of nicotine found in nature is (S)-nicotine and its pharmacology has been widely established. However, pharmacologic information…”
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Effective methodologies for enantiomeric separations of 150 pharmacology and toxicology related 1°, 2°, and 3° amines with core-shell chiral stationary phases by Hellinghausen, Garrett, Roy, Daipayan, Lee, Jauh T., Wang, Yadi, Weatherly, Choyce A., Lopez, Diego A., Nguyen, Kate A., Armstrong, John D., Armstrong, Daniel W.

“…[Display omitted] •Rapid method development for optimized enantiomeric separations of 150 amines.•Biological compatible MS analysis of 150…”
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Evaluation of nicotine in tobacco‐free‐nicotine commercial products by Hellinghausen, Garrett, Lee, Jauh T., Weatherly, Choyce A., Lopez, Diego A., Armstrong, Daniel W.

“…Recently, a variety of new tobacco‐free‐nicotine, TFN, products have been commercialized as e‐liquids. Tobacco‐derived nicotine contains predominantly…”
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Evaluation of the Edman degradation product of vancomycin bonded to core‐shell particles as a new HPLC chiral stationary phase by Hellinghausen, Garrett, Lopez, Diego A., Lee, Jauh T., Wang, Yadi, Weatherly, Choyce A., Portillo, Abiud E., Berthod, Alain, Armstrong, Daniel W.

“…A modified macrocyclic glycopeptide‐based chiral stationary phase (CSP), prepared via Edman degradation of vancomycin, was evaluated as a chiral selector for…”
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Enantiomeric impurities in chiral catalysts, auxiliaries, synthons and resolving agents. Part 2 by Armstrong, Daniel W, He, Lingfeng, Yu, Timothy, Lee, Jauh T, Liu, Yan-song

“…The enantiomeric purity of reagents used in asymmetric synthesis is of fundamental importance when evaluating the selectivity of a reaction and the product…”
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Enantiomeric impurities in chiral catalysts, auxiliaries and synthons used in enantioselective synthesis by Armstrong, Daniel W, Lee, Jauh T, Chang, Lisa W

“…Eighty three popular chiral reagents that are used to synthesize a wide variety of compounds of high enantiomeric purity were analyzed in order to determine…”
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