Search Results - "Leung, Kelvin S.Y."

Influence of livestock activities on residue antibiotic levels of rivers in Hong Kong by Selvam, Ammaiyappan, Kwok, Katrina, Chen, Yumei, Cheung, Anna, Leung, Kelvin S. Y., Wong, Jonathan W. C.

“…Occurrence of 10 antibiotics in the Yuen Long (YLR), Kam Tin (KTR), and Shing Mun (SMR) rivers of Hong Kong and possible influence of livestock activities on…”
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Forensic Analysis of Laser Printed Ink by X‑ray Fluorescence and Laser-Excited Plume Fluorescence by Chu, Po-Chun, Cai, Bruno Yue, Tsoi, Yeuk Ki, Yuen, Ronald, Leung, Kelvin S.Y, Cheung, Nai-Ho

“…We demonstrated a minimally destructive two-tier approach for multielement forensic analysis of laser-printed ink. The printed document was first screened…”
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Elemental Analysis of Chinese Black Inks on Xuan Paper by ArF Laser-Excited Plume Fluorescence by Cai, Yue, Huang, Zhengyu, Cheung, Michelle H.C, Motto-Ros, Vincent, Chu, Po-Chun, Wang, Yuanwei, Zhong, Haoyi, Yuen, Ronald, Leung, Kelvin S.Y, Lum, Judy T.S, Ho, Sut-Kam, Cheung, Nai-Ho

“…Chemical analysis of Chinese black ink on xuan paper is useful for the authentication of Asian artwork. The analysis has to be nondestructive and has to…”
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Angiosuppressive properties of marine-derived compounds—a mini review by Yue, Patrick Y.K., Leung, H.M., Li, Adela J., Chan, Tracy N.C., Lum, T.S., Chung, Y. L., Sung, Y.H., Wong, M.H., Leung, Kelvin S.Y., Zeng, Eddy Y.

“…Angiogenesis, formation of new blood vessels from preexisting one, is a critical step of tumorgenesis of solid tumors. Therefore, antiangiogenic therapy is one…”
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Glucuronide and sulfate conjugates of tetrabromobisphenol A (TBBPA): Chemical synthesis and correlation between their urinary levels and plasma TBBPA content in voluntary human donors by Ho, Ka-Lok, Yuen, Ka-Ki, Yau, Man-Shan, Murphy, Margaret B., Wan, Yi, Fong, Bonnie M.-W., Tam, Sidney, Giesy, John P., Leung, Kelvin S.-Y., Lam, Michael H.-W.

“…3,3′,5,5′-Tetrabromobisphenol-A (TBBPA) is an important brominated flame retardant in epoxy, vinyl esters and polycarbonate resins. Previous studies have…”
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Glucuronide and Sulfate Conjugates of Bisphenol A: Chemical Synthesis and Correlation Between Their Urinary Levels and Plasma Bisphenol A Content in Voluntary Human Donors by Ho, Ka-Lok, Yuen, Ka-Ki, Yau, Man-Shan, Murphy, Margaret B., Wan, Yi, Fong, Bonnie M.-W., Tam, Sidney, Giesy, John P., Leung, Kelvin S.-Y., Lam, Michael H.-W.

“…Bisphenol A (BPA) glucuronide and sulfate conjugates are major products of Phase II metabolism of BPA in humans. In the past, their determination in body…”
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Urinary bromophenol glucuronide and sulfate conjugates: Potential human exposure molecular markers for polybrominated diphenyl ethers by Ho, Ka-Lok, Yau, Man-Shan, Murphy, Margaret B., Wan, Yi, Fong, Bonnie M.-W., Tam, Sidney, Giesy, John P., Leung, Kelvin S.-Y., Lam, Michael H.-W.

“…[Display omitted] •Parallel blood and urine samples were collected from 100 donors in Hong Kong.•Levels of selected BP glucuronide and sulfate conjugates in…”
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Degradation of tetracycline and sulfadiazine during continuous thermophilic composting of pig manure and sawdust by Selvam, Ammaiyappan, Zhao, Zhenyong, Li, Yunchun, Chen, Yumei, Leung, Kelvin, Wong, Jonathan

“…During composting, the thermophilic phase resulted in high degradation of antibiotics in the composting mass; thus temperature is considered as the major…”
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Synthesis and Characterization of Bromophenol Glucuronide and Sulfate Conjugates for Their Direct LC-MS/MS Quantification in Human Urine as Potential Exposure Markers for Polybrominated Diphenyl Ethers by Ho, Ka-Lok, Murphy, Margaret B, Wan, Yi, Fong, Bonnie M.-W, Tam, Sidney, Giesy, John P, Leung, Kelvin S.-Y, Lam, Michael H.-W

“…Bromophenol glucuronide and sulfate conjugates have been reported to be products of mammalian metabolism of polybrominated diphenyl ethers (PBDEs), a group of…”
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Identification and determination of the major constituents in traditional Chinese medicinal plant Polygonum multiflorum thunb by HPLC coupled with PAD and ESI/MS by Yi, T, Leung, K.S.Y, Lu, G.H, Zhang, H, Chan, K

“…An HPLC-PAD-MS method has been developed for the qualitative and quantitative analysis of the major chemical constituents in Polygonum multiflorum Thunb…”
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Qualitative and quantitative analyses of nucleosides and nucleobases in Ganoderma spp. by HPLC–DAD-MS by Gao, J.L., Leung, Kelvin S.Y., Wang, Y.T., Lai, C.M., Li, S.P., Hu, L.F., Lu, G.H., Jiang, Z.H., Yu, Z.L.

“…A high-performance liquid chromatography–diode array detector-mass spectrometry (HPLC–DAD-MS) analytical method was developed for detection of the nucleosides…”
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Embryotoxicity of Psoralea corylifolia L.: In Vivo and In Vitro Studies by Xu, Min, Tian, Xiao Y., Leung, Kelvin S.-Y., Lee, Kam C., Chow, Tak C., Deng, Bin, Yiu, Chi M., Chow, Chi I., Zhao, Zhong Z., Yang, Zhi J., Fun, Fong W., Xiao, Ting T., Xu, Wei, Deng, Ping X.

“…BACKGROUND Psoralea corylifolia L. (PC) was commonly used to treat miscarriages clinically. The aim of this study was to examine its embryotoxicity in mice and…”
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Determination of free ferulic acid and total ferulic acid in Chuanxiong by high-performance liquid chromatography for quality assessment by Lv, Guanghua, Cheng, Shiqiong, Chan, Kelvin, Leung, Kelvin Sy, Zhao, Zhongzhen

“…Ferulic acid (FA) is one of the main bioactive compounds in Chuanxiong (CX), the dried rhizome of Ligusticum chuanxiong, but its amount in this herb is…”
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Measurement uncertainty for total ash and acid-insoluble ash determination of Chinese materia medica by LEUNG, Kelvin S. Y, CHAN, Kelvin, LAU, Angus C. K, GUANGHUA LU

“…The total ash and acid-insoluble ash contents of Chinese materia medica (CMM) have been widely used as one of the indices to illustrate the quality as well as…”
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Improving the quality of randomized controlled trials in Chinese herbal medicine, part III: quality control of Chinese herbal medicine used in randomized controlled trials by Leung, Kelvin S Y, Bian, Zhao-Xiang, Moher, David, Dagenais, Simon, Li, You-Ping, Liu, Liang, Wu, Tai-Xiang, Miao, Jiang-Xia

“…To discuss quality control of Chinese herbal medicine (CHM) in randomized controlled trials (RCTs), and to provide suggestions for improving this aspect in…”
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