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Hwee Ling Koh

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Full Name
Hwee Ling Koh
Variants
Koh, H.-L.
Ling, K.H.
Koh, H.L.
Hwee, L.K.
Koh, H.
Hwee Ling Koh
 
Main Affiliation
 
Faculty
 
Email
phakohhl@nus.edu.sg
 

Publications

Refined By:
Author:  Zou, P.
Type:  Article

Results 1-11 of 11 (Search time: 0.005 seconds).

Issue DateTitleAuthor(s)
11-Jul-2005Chemical fingerprinting of Isatis indigotica root by RP-HPLC and hierarchical clustering analysisZou, P.; Hong, Y.; Koh, H.L. 
22007Determination of indican, isatin, indirubin and indigotin in Isatis indigotica by liquid chromatography/electrospray ionization tandem mass spectrometryZou, P.; Koh, H.L. 
39-Jun-2008Identification of benzamidenafil, a new class of phosphodiesterase-5 inhibitor, as an adulterant in a dietary supplementZou, P.; Hou, P.; Oh, S.S.-Y.; Ge, X.; Bloodworth, B.C.; Low, M.-Y.; Koh, H.-L. 
49-Jun-2008Isolation and identification of thiohomosildenafil and thiosildenafil in health supplementsZou, P.; Hou, P.; Oh, S.S.-Y.; Chong, Y.M.; Bloodworth, B.C.; Low, M.-Y.; Koh, H.-L. 
52007Letter: Liquid chromatography ion-trap time-of-flight mass spectrometric study on the fragmentation of an acetildenafil analogueZou, P.; Oh, S.S.-Y.; Kiang, K.-H.; Low, M.-Y.; Koh, H.-L. 
63-Feb-2006Simultaneous determination of synthetic phosphodiesterase-5 inhibitors found in a dietary supplement and pre-mixed bulk powders for dietary supplements using high-performance liquid chromatography with diode array detection and liquid chromatography-electrospray ionization tandem mass spectrometryZou, P.; Oh, S.S.-Y.; Hou, P.; Low, M.-Y.; Koh, H.-L. 
73-Feb-2006Simultaneous determination of synthetic phosphodiesterase-5 inhibitors found in a dietary supplement and pre-mixed bulk powders for dietary supplements using high-performance liquid chromatography with diode array detection and liquid chromatography-electrospray ionization tandem mass spectrometryZou, P.; Oh, S.S.-Y.; Hou, P.; Low, M.-Y.; Koh, H.-L. 
83-Feb-2006Simultaneous determination of synthetic phosphodiesterase-5 inhibitors found in a dietary supplement and pre-mixed bulk powders for dietary supplements using high-performance liquid chromatography with diode array detection and liquid chromatography-electrospray ionization tandem mass spectrometryZou, P.; Oh, S.S.-Y.; Hou, P.; Low, M.-Y.; Koh, H.-L. 
91-Dec-2008Structural elucidation of a PDE-5 inhibitor detected as an adulterant in a health supplementGe, X.; Low, M.-Y.; Zou, P.; Lin, L.; Yin, S.O.S.; Bloodworth, B.C.; Koh, H.-L. 
10May-2006Structural elucidation of a tadalafil analogue found as an adulterant of a herbal productZou, P.; Hou, P.; Low, M.-Y.; Koh, H.-L. 
11Sep-2006Structural identification of a new acetildenafil analogue from pre-mixed bulk powder intended as a dietary supplementHou, P.; Zou, P.; Low, M.-Y.; Chan, E. ; Koh, H.-L.