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Kelvin Sze-Yin Leung

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Technology, Pharmaceutical

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Publications

TOP 3
Yee-Man Ho; Yeuk-Ki Tsoi; Kelvin Sze-Yin Leung
Highly sensitive and selective organophosphate screening in twelve commodities of fruits, vegetables and herbal medicines by dispersive liquid-liquid microextraction.
Sonja Krieger; Kelvin Sze-Yin Leung; Alexandra von Trotha; Oliver J Schmitz
Development, optimization, and use of an APCI source with temperature-controlled vaporization of solid and liquid samples.
Zi-Ye Sang; Yeuk-Ki Tsoi; Yu-Ting Wang; Kelvin Sze-Yin Leung
CODEX-compliant eleven organophosphorus pesticides screening in multiple commodities using headspace-solid phase microextraction-gas chromatography-mass spectrometry.

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All Publications

2013: Yee-Man Ho; Yeuk-Ki Tsoi; Kelvin Sze-Yin Leung
Highly sensitive and selective organophosphate screening in twelve commodities of fruits, vegetables and herbal medicines by dispersive liquid-liquid microextraction.
Analytica chimica acta 2013;775():58-66.
2013: Sonja Krieger; Kelvin Sze-Yin Leung; Alexandra von Trotha; Oliver J Schmitz
Development, optimization, and use of an APCI source with temperature-controlled vaporization of solid and liquid samples.
Analytical and bioanalytical chemistry 2013;405(4):1373-81.
2013: Zi-Ye Sang; Yeuk-Ki Tsoi; Yu-Ting Wang; Kelvin Sze-Yin Leung
CODEX-compliant eleven organophosphorus pesticides screening in multiple commodities using headspace-solid phase microextraction-gas chromatography-mass spectrometry.
Food chemistry 2013;136(2):710-7.
2013: Yumei Chen; Kelvin Sze-Yin Leung; Jonathan Woon-Chung Wong; Ammaiyappan Selvam
Preliminary occurrence studies of antibiotic residues in Hong Kong and Pearl River Delta.
Environmental monitoring and assessment 2013;185(1):745-54.
2012: Yuk-Kit Chan; Hoi-Hin Kwok; Kelvin Sze-Yin Leung; Nai Ki Mak; Jue Shi; Ricky Wong; Lai-Sheung Chan; Patrick Y K Yue
An indirubin derivative, E804, exhibits potent angiosuppressive activity.
Biochemical pharmacology 2012;83(5):598-607.
2012: Yeuk-Ki Tsoi; Yee-Man Ho; Kelvin Sze-Yin Leung
Selective recognition of arsenic by tailoring ion-imprinted polymer for ICP-MS quantification.
Talanta 2012;89():162-8.
2012: Bonnie Mei-Wah Fong; Sidney Tam; Kelvin Sze-Yin Leung
Quantification of acylglycines in human urine by HPLC electrospray ionization-tandem mass spectrometry and the establishment of pediatric reference interval in local Chinese.
Talanta 2012;88():193-200.
2012: Patrick Ying-Kit Yue; Tony Yuk-Kit Chan; Carman Ka-Man Law; Yeuk-Ki Tsoi; Yi-Yi Wong; Kelvin Sze-Yin Leung
Review of biological and pharmacological activities of the endemic Taiwanese bitter medicinal mushroom, Antrodia camphorata (M. Zang et C. H. Su) Sh. H. Wu et al. (higher Basidiomycetes).
International journal of medicinal mushrooms 2012;14(3):241-56.
2011: Yeuk-Ki Tsoi; Kelvin Sze-Yin Leung
Toward the use of surface modified activated carbon in speciation: selective preconcentration of selenite and selenate in environmental waters.
Journal of chromatography. A 2011;1218(16):2160-4.
2011: Xiao Ying Tian; Min Xu; Bin Deng; Kelvin Sze-Yin Leung; King Fai Cheng; Zhong Zhen Zhao; Shi Ping Zhang; Zhi Jun Yang; Ping Xiang Deng; Dong Ying Xu; Xiao Ping Xu; Irene Koo; Michael Wong
The effects of Boehmeria nivea (L.) Gaud. on embryonic development: in vivo and in vitro studies.
Journal of ethnopharmacology 2011;134(2):393-8.
2011: Bonnie Mei-Wah Fong; Sidney Tam; Sik-Hon Tsui; Kelvin Sze-Yin Leung
Development and validation of a high-throughput double solid phase extraction-liquid chromatography-tandem mass spectrometry method for the determination of tetrodotoxin in human urine and plasma.
Talanta 2011;83(3):1030-6.
2010: Yongli Liu; Xin Di; Xingchao Liu; Wenjin Shen; Kelvin Sze-Yin Leung
Development of a LC-MS/MS method for the determination of antrodin B and antrodin C from Antrodia camphorata extract in rat plasma for pharmacokinetic study.
Journal of pharmaceutical and biomedical analysis 2010;53(3):781-4.
2010: Guanghua Lu; Zhengqi Dong; Qing Wang; Guangsheng Qian; Wenhua Huang; Zhihong Jiang; Kelvin Sze-Yin Leung; Zhongzhen Zhao
Toxicity assessment of nine types of decoction pieces from the daughter root of Aconitum carmichaeli (Fuzi) based on the chemical analysis of their diester diterpenoid alkaloids.
Planta medica 2010;76(8):825-30.
2010: Sandy Shuo Zhao; Kelvin Sze-Yin Leung
Quality evaluation of mycelial Antrodia camphorata using high-performance liquid chromatography (HPLC) coupled with diode array detector and mass spectrometry (DAD-MS).
Chinese medicine 2010;5():4.
2010: Bonnie Mei-Wah Fong; Sidney Tam; Kelvin Sze-Yin Leung
Improved liquid chromatography-tandem mass spectrometry method in clinical utility for the diagnosis of Cushing's syndrome.
Analytical and bioanalytical chemistry 2010;396(2):783-90.
2009: Chung Hin Chui; Raymond Siu Ming Wong; Roberto Gambari; Gregory Yin Ming Cheng; Marcus Chun-Wah Yuen; Kit-Wah Chan; See-Wai Tong; Fung Yi Lau; Paul Bo-San Lai; KH Lam; Cheuk-Lam Ho; Chi-Wai Kan; Kelvin Sze-Yin Leung; Wai-Yeung Wong
Antitumor activity of diethynylfluorene derivatives of gold(I).
Bioorganic & medicinal chemistry 2009;17(23):7872-7.
2009: Jiang Meng; Kelvin Sze-Yin Leung; Xiao-Ping Dong; Yi-Sheng Zhou; Zhi-Hong Jiang; Zhong-Zhen Zhao
Simultaneous quantification of eight bioactive components of Houttuynia cordata and related Saururaceae medicinal plants by on-line high performance liquid chromatography-diode array detector-electrospray mass spectrometry.
Fitoterapia 2009;80(8):468-74.
2009: Dan Chen; Sandy Shuo Zhao; Kelvin Sze-Yin Leung
Improved quality assessment of proprietary Chinese medicines based on multi-chemical class fingerprinting.
Journal of separation science 2009;32(17):2892-902.
2009: Kelvin Sze-Yin Leung; Chunmei Fu
Improved chromatographic assessment of Chinese medicinal products by multi-chemical classes analysis.
Planta medica 2009;75(10):1171-9.
2009: Chun-Mei Fu; Guang-Hua Lu; Oliver J Schmitz; Zhang-wan Li; Kelvin Sze-Yin Leung
Improved chromatographic fingerprints for facile differentiation of two Ganoderma spp.
Biomedical chromatography : BMC 2009;23(3):280-8.
2009: Kelvin Chan; Kelvin Sze-Yin Leung; Sandy Shuo Zhao
Harmonization of monographic standards is needed to ensure the quality of Chinese medicinal materials.
Chinese medicine 2009;4():18.
2008: Zhong-Zhen Zhao; Zhi-Tao Liang; Zhi-Hong Jiang; Kelvin Sze-Yin Leung; Chi-Leung Chan; Hon-Yee Chan; Jaime Sin; Tim-On Man; Kwok-Wai Law
Comparative study on the aristolochic acid I content of Herba Asarifor safe use.
Phytomedicine : international journal of phytotherapy and phytopharmacology 2008;15(9):741-8.
2008: Guangsheng Qian; Sik-Yuen Leung; GuangHua Lu; Kelvin Sze-Yin Leung
Optimization and validation of a chromatographic method for the simultaneous quantification of six bioactive compounds in Rhizoma et Radix Polygoni Cuspidati.
The Journal of pharmacy and pharmacology 2008;60(1):107-13.
2007: Guang-Sheng Qian; Qing Wang; Kelvin Sze-Yin Leung; Yong Qin; Zhongzhen Zhao; Zhi-Hong Jiang
Quality assessment of Rhizoma et Radix Notopterygii by HPTLC and HPLC fingerprinting and HPLC quantitative analysis.
Journal of pharmaceutical and biomedical analysis 2007;44(3):812-7.
2007: J L Gao; Kelvin Sze-Yin Leung; Yi-Tao Wang; CM Lai; Shao-Ping Li; L F Hu; G H Lu; Z H Jiang; Z L Yu
Qualitative and quantitative analyses of nucleosides and nucleobases in Ganoderma spp. by HPLC-DAD-MS.
Journal of pharmaceutical and biomedical analysis 2007;44(3):807-11.
2007: Tao Yi; Kelvin Sze-Yin Leung; Guang-Hua Lu; Hao Zhang; Kelvin Chan
Identification and determination of the major constituents in traditional Chinese medicinal plant Polygonum multiflorum thunb by HPLC coupled with PAD and ESI/MS.
Phytochemical analysis : PCA 2007;18(3):181-7.
2007: Tao Yi; Kelvin Sze-Yin Leung; Guang-Hua Lu; Hao Zhang
Comparative analysis of Ligusticum chuanxiong and related umbelliferous medicinal plants by high performance liquid chromatography-electrospray ionization mass spectrometry.
Planta medica 2007;73(4):392-8.
2007: Kelvin Sze-Yin Leung; Kelvin Chan; Alan Bensoussan; Mary J Munroe
Application of atmospheric pressure chemical ionisation mass spectrometry in the identification and differentiation of Panax species.
Phytochemical analysis : PCA 2007;18(2):146-50.
2007: Jiang Meng; Xiao-ping Dong; Yi-sheng Zhou; Zhi-hong Jiang; Kelvin Sze-Yin Leung; Zhong-zhen Zhao
[Orthogonal experiment using SFE-CO2 in extraction of essential oil from fresh Houttuynia cordata and analysis of essential oil by GC-MS].
Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica 2007;32(3):215-7.
2006: Yani Hu; Zhihong Jiang; Kelvin Sze-Yin Leung; Zhongzhen Zhao
Simultaneous determination of naphthoquinone derivatives in Boraginaceous herbs by high-performance liquid chromatography.
Analytica chimica acta 2006;577(1):26-31.
2006: Zhongzhen Zhao; Yani Hu; Zhitao Liang; Jessie Pui-Sai Yuen; Zhihong Jiang; Kelvin Sze-Yin Leung
Authentication is fundamental for standardization of Chinese medicines.
Planta medica 2006;72(10):865-74.
2006: Guangsheng Qian; Sik-Yuen Leung; GuangHua Lu; Kelvin Sze-Yin Leung
Differentiation of rhizoma et radix polygoni cuspidati from closely related herbs by HPLC fingerprinting.
Chemical & pharmaceutical bulletin 2006;54(8):1179-86.
2006: Zhi-Tao Liang; Zhi-Hong Jiang; Kelvin Sze-Yin Leung; Zhong-Zhen Zhao
Determination of iridoid glucosides for quality assessment of Herba Oldenlandiae by high-performance liquid chromatography.
Chemical & pharmaceutical bulletin 2006;54(8):1131-7.
2006: Kelvin Sze-Yin Leung; Zhao-Xiang Bian; David Moher; Simon Dagenais; You-Ping Li; Liang Liu; Tai-Xiang Wu; Jiang-Xia Miao
Improving the quality of randomized controlled trials in Chinese herbal medicine, part III: quality control of Chinese herbal medicine used in randomized controlled trials.
Zhong xi yi jie he xue bao = Journal of Chinese integrative medicine 2006;4(3):225-32.
2006: Zhi-Tao Liang; Zhi-Hong Jiang; Kelvin Sze-Yin Leung; Yong Peng; Zhong-Zhen Zhao
Distinguishing the medicinal herb Oldenlandia diffusa from similar species of the same genus using fluorescence microscopy.
Microscopy research and technique 2006;69(4):277-82.
2006: Youyi Wu; Alvin Yam Tat Ho; Pei-Yuan Qian; Kelvin Sze-Yin Leung; Zongwei Cai; Jin-Ming Lin
Determination of paralytic shellfish toxins in dinoflagellate Alexandrium tamarense by using isotachophoresis/capillary electrophoresis.
Journal of separation science 2006;29(3):399-404.
2006: Tao Yi; Kelvin Sze-Yin Leung; Guang-Hua Lu; Kelvin Chan; Hao Zhang
Simultaneous qualitative and quantitative analyses of the major constituents in the rhizome of Ligusticum Chuanxiong using HPLC-DAD-MS.
Chemical & pharmaceutical bulletin 2006;54(2):255-9.
2005: Yong Peng; Chen Ma; Yawei Li; Kelvin Sze-Yin Leung; Zhi-Hong Jiang; Zhongzhen Zhao
Quantification of zeaxanthin dipalmitate and total carotenoids in Lycium fruits (Fructus Lycii).
Plant foods for human nutrition (Dordrecht, Netherlands) 2005;60(4):161-4.
2005: Jiang Meng; Kelvin Sze-Yin Leung; Zhihong Jiang; Xiaoping Dong; Zhongzhen Zhao; Li-Jia Xu
Establishment of HPLC-DAD-MS fingerprint of fresh Houttuynia cordata.
Chemical & pharmaceutical bulletin 2005;53(12):1604-9.
2005: Jiang Meng; Kelvin Sze-Yin Leung; Zhihong Jiang; Xiaoping Dong; Zhongzhen Zhao
Establishment of GC-MS fingerprint of fresh Houttuynia cordata.
Chemical & pharmaceutical bulletin 2005;53(11):1484-9.
2005: Tao Yi; Kelvin Sze-Yin Leung; Guang-Hua Lu; Hao Zhang; Kelvin Chan
Identification and comparative determination of senkyunolide A in traditional Chinese medicinal plants Ligusticum chuanxiong and Angelica sinensis by HPLC coupled with DAD and ESI-MS.
Chemical & pharmaceutical bulletin 2005;53(11):1480-3.
2005: Kelvin Sze-Yin Leung; Kelvin Chan; Chi-Leung Chan; Guang-Hua Lu
Systematic evaluation of organochlorine pesticide residues in Chinese materia medica.
Phytotherapy research : PTR 2005;19(6):514-8.