Enhancement of teprenone isomer separation by subcritical fluid chromatography using porous graphitic carbon column

by Chang Hwa Jin, Han Young Eom, Seong Jun Bae, Hyun-Deok Cho, Sang Beom Han
Published 2021-06-01

Analysis of Nicotine Metabolites in Hair and Nails Using QuEChERS Method Followed by Liquid Chromatography–Tandem Mass Spectrometry

by Junhee Kim, Hyun-Deok Cho, Joon Hyuk Suh, Ji-Youn Lee, Eunyoung Lee, Chang Hwa Jin, Yu Wang, Sangwon Cha, Hosub Im, Sang Beom Han
Published 2020-04-01

Screening of Phosphodiesterase-5 Inhibitors and Their Analogs in Dietary Supplements by Liquid Chromatography–Hybrid Ion Trap–Time of Flight Mass Spectrometry

by Unyong Kim, Hyun-Deok Cho, Myung Hee Kang, Joon Hyuk Suh, Han Young Eom, Junghyun Kim, Sumin Seo, Gunwoo Kim, Hye Ryoung Koo, Nary Ha, Un Tak Song, Sang Beom Han
Published 2020-06-01