Hwee-Ling Koh - Dissemin

Papers authored by Hwee-Ling Koh

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2006 Aik-Jiang Lau, Hwee-Ling Koh

Quality Control of Herbs: Principles and Procedures, Using Panax as an Example

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Peng Zou, Sharon Sze-Yin Oh, Peiling Hou, Min-Yong Low, Hwee-Ling Koh

Simultaneous 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 spectrometry

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H. L. Koh

, H. Wang, S. Zhou, E. Chan, S. O. Woo

Detection of aristolochic acid I, tetrandrine and fangchinoline in medicinal plants by high performance liquid chromatography and liquid chromatography/mass spectrometry

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Peng Zou, Peiling Hou, Sharon Sze-Yin Oh, Min-Yong Low, Hwee-Ling Koh

Electrospray tandem mass spectrometric investigations of tadalafil and its analogue

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Ze-Ping Hu, Xiao-Xia Yang, Sui Yung Chan, An-Long Xu, Wei Duan, Yi-Zhun Zhu

, Urs Alex Boelsterli, Fwu-Shan Sheu, Eli Chan, Qiang Zhang, Pui Lai Rachel Ee, Jian-Cheng Wang, Hwee Ling Koh

, Min Huang, Shu-Feng Zhou

St. John's wort attenuates irinotecan-induced diarrhea via down-regulation of intestinal pro-inflammatory cytokines and inhibition of intestinal epithelial apoptosis

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2005 Deborah Y. Q. Hong, A. J. Lau, C. L. Yeo, X. K. Liu, C. R. Yang, H. L. Koh

, Y. Hong

Genetic Diversity and Variation of Saponin Contents in Panax notoginseng Roots from a Single Farm

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Xudong Yuan, Hwee-Ling Koh

, Wai-Keung Chui

A high performance liquid chromatography method for the simultaneous determination of arctiin, chlorogenic acid and glycyrrhizin in a Chinese proprietary medicine

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P. Zou, Y. Hong, H. L. Koh

Chemical fingerprinting of Isatis indigotica root by RP-HPLC and hierarchical clustering analysis

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Yihuai Gao, Wenbo Tang, Xihu Dai, He Gao, Guoliang Chen, Jinxian Ye, Eli Chan, Hwee Ling Koh

, Xiaotian Li, Shufeng Zhou

Effects of Water-SolubleGanoderma lucidumPolysaccharides on the Immune Functions of Patients with Advanced Lung Cancer

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Hwee‐Ling Koh

, Aik‐Jiang Lau, Eric Chun‐Yong Chan

Hydrophilic interaction liquid chromatography with tandem mass spectrometry for the determination of underivatized dencichine (β‐N‐oxalyl‐L‐α,β‐diaminopropionic acid) in Panax medicinal plant species

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Zeping Hu, Xiaoxia Yang, Paul Chi Lui Ho, Sui Yung Chan, Paul Wan Sia Heng, Eli Chan, Wei Duan, Hwee Ling Koh

, Shufeng Zhou

Herb-Drug Interactions

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2004 Aik-Jiang Lau, Bee-Hong Seo, Soo-On Woo, Hwee-Ling Koh

High-performance liquid chromatographic method with quantitative comparisons of whole chromatograms of raw and steamed Panax notoginseng

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This paper is available in a repository.

Shufeng Zhou, Hwee-Ling Koh

, Yihuai Gao, Zhi-Yuan Gong, Edmund Jon Deoon Lee

Herbal bioactivation: The good, the bad and the ugly

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2003 Hwee-Ling Koh

, Wai-Ping Yau, Pei-Shi Ong, Akhil Hegde

Current trends in modern pharmaceutical analysis for drug discovery

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Aik-Jiang Lau, Soo-On Woo, Hwee-Ling Koh

Analysis of saponins in raw and steamed Panax notoginseng using high-performance liquid chromatography with diode array detection

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Aik-Jiang Lau, Michael J. Holmes, Soo-On Woo, Hwee-Ling Koh

Analysis of adulterants in a traditional herbal medicinal product using liquid chromatography–mass spectrometry–mass spectrometry

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Hwee-Ling Koh

, Hsiao-Huei Teo, Hui-Ling Ng

Pharmacists' Patterns of Use, Knowledge, and Attitudes Toward Complementary and Alternative Medicine

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This paper is made freely available by the publisher.

2002 Hwei Khien Lee, Hwee Ling Koh

, Eng Shi Ong, Soo On Woo

Determination of ginsenosides in medicinal plants and health supplements by pressurized liquid extraction (PLE) with reversed phase high performance liquid chromatography

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2001 Song-Yun Liu, Soo-On Woo, Hwee-Ling Koh

HPLC and GC–MS screening of Chinese proprietary medicine for undeclared therapeutic substances

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2000 Song Yun Liu, Soo-On Woo, Michael J. Holmes, Hwee-Ling Koh

LC and LC-MS-MS analyses of undeclared codeine in antiasthmatic Chinese proprietary medicine

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Papers authored by Hwee-Ling Koh