Zhanliang Wang

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A method of high performance liquid chromatography coupled with diode array detection and electrospray ionization mass spectrometry (HPLC-DAD/MS) in negative ion mode was developed for the analysis of ginsenosides in Sheng-Mai-Yin decoction (Panax gingeng C. A. Mey, Ophiopogon japonicus (Thunb.) Ker-Gawl, Shisandra chinensis (Turcz.) Baill.). The analyses(More)
A high performance liquid chromatography-electrospray ionization mass spectrometry (LC-ESI/MS) was developed to screen and determine trenbolone, tetrahydrogestrinone and gestrinone in human urine. The urine sample was enzymatically hydrolyzed with beta-glucuronidase, then extracted with methyl tert-butyl ether. Chromatographic separation was performed on a(More)
To determine the geometries of the most stable hept-C(62)X(2) (X = F, Cl, and Br) isomers, all 967 possible hept-C(62)F(2) isomers have been orderly optimized using AM1, HF/STO-3G, B3LYP/3-21G, and B3LYP/6-31G* methods, and chlorofullerenes and bromofullerenes, which are isostructural with five most stable hept-C(62)F(2) isomers, were regarded as candidates(More)
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