Chee‐Leong Kee

Rapid determination of sildenafil and its analogues in dietary supplements using gas chromatography–triple quadrupole mass spectrometry

SaraH Mokhtar, Sung‐Tong Chin, Chee‐Leong Kee et al. · Journal of Pharmaceutical and Biomedical Analysis · 2016 · 46 citations

Dietary Supplements, Pharmaceutical Science, Rapid Determination +7

Analysis of 40 weight loss compounds adulterated in health supplements by liquid chromatography quadrupole linear ion trap mass spectrometry

Yun Zeng, Yimin Xu, Chee‐Leong Kee et al. · Drug Testing and Analysis · 2015 · 45 citations

Product Ion, Biological Mass Spectrometry, Metabolomic Profiling +19

Isolation and characterization of propoxyphenyl linked sildenafil and thiosildenafil analogues in health supplements

Chee‐Leong Kee, Xiaowei Ge, Hwee‐Ling Koh et al. · Journal of Pharmaceutical and Biomedical Analysis · 2012 · 23 citations

Pharmaceutical Science, Thiosildenafil Analogues, Pharmacology +7

Application of Orbitrap-mass spectrometry to differentiate isomeric sildenafil- and thiosildenafil-like analogues used for the adulteration of dietary supplements

Chee‐Leong Kee, Xiaowei Ge, Min‐Yong Low · Food Additives & Contaminants Part A · 2015 · 20 citations

Dietary Supplements, Pharmaceutical Science, Metabolomic Profiling +21

Isolation and structural elucidation of flibanserin as an adulterant in a health supplement used for female sexual performance enhancement

Min‐Yong Low, Lin Li, Xiaowei Ge et al. · Journal of Pharmaceutical and Biomedical Analysis · 2011 · 20 citations

Health Supplement, Structural Elucidation, Medicine +2