Objective Jasminodin in Mei Rong capsule was determined by the method or thin layer chromatog- raphy. Mothods The sample Jasminodin was extracted with methanol and then the extract was chromatographed on silica gel GF...Objective Jasminodin in Mei Rong capsule was determined by the method or thin layer chromatog- raphy. Mothods The sample Jasminodin was extracted with methanol and then the extract was chromatographed on silica gel GF254 plate with chloroform-methanol-water(10:3:1) as mobile phase and the chromatograms were scanned by using Shimadzu CS-930 dual wavelength TLCS in zegzag scanning mode at λ_s 370nm and λR 250nm. Results Callbration graph was rectilinear between 2.7μg^16.2μg per spot for the jasminodin. Conclusion Satisfa- tory results were obtained with the average recovery ratio of 99.76%,RSD 2.27%.展开更多
hhen ammonium sulfate-iron oxide is treated below 573 K, ammonium sulfate can spontaneously desperse on the surface of iron oxide. Simultaneously ammonium sulfate decomposes to some extent. During or after the dispers...hhen ammonium sulfate-iron oxide is treated below 573 K, ammonium sulfate can spontaneously desperse on the surface of iron oxide. Simultaneously ammonium sulfate decomposes to some extent. During or after the dispersion, sulfate ion can interact with Fe atom on the surface of iron oxide to form a sort of surface sulfato complex of Fe and thus is transformed from the isolated into the bidentately bound form. Above 573 K the sulfato complex of Fe will gradually decompose with a further increase in temperature.展开更多
Professor Ma Rongjun was bron in 1931 at Dacheng County of Hebei Province. He graduated from Northeast University of Technology in 1955 and studied as a postgraduate at Kosice
Rong Tie was educated in the Central Academy of Fine Arts, majoring in calligraphy, in 1996, he began his postgraduate study in calligraphy at Capital Normal University. He studied in the “elite class” at China Inst...Rong Tie was educated in the Central Academy of Fine Arts, majoring in calligraphy, in 1996, he began his postgraduate study in calligraphy at Capital Normal University. He studied in the “elite class” at China Institution of Arts Studies in 2002 and became a visiting scholar at Peking University in 2003. His titles include: National First-Class Artist, academician of the China Artists Association, deputy secretarygeneral of the Traveling and Friendship Center of the China Artist Association,展开更多
The aim of this study was to develop comprehensive evaluation methods for the quality control of Ginseng Yang Rong Wan(RSYRW).Multi-wavelength fusion fingerprints were successfully developed by high-performance liquid...The aim of this study was to develop comprehensive evaluation methods for the quality control of Ginseng Yang Rong Wan(RSYRW).Multi-wavelength fusion fingerprints were successfully developed by high-performance liquid chromatography,which avoided the one-sidedness of single fingerprinting.Characteristic fingerprints of thirty batches of samples were generated at five wavelengths and evaluated by quantified ratio fingerprint method(QRFM).The results showed that thirty batches of samples were classified into seven grades.The methods established in this paper were found suitable for the analysis of Ginseng Yang Rong Wan.展开更多
文摘Objective Jasminodin in Mei Rong capsule was determined by the method or thin layer chromatog- raphy. Mothods The sample Jasminodin was extracted with methanol and then the extract was chromatographed on silica gel GF254 plate with chloroform-methanol-water(10:3:1) as mobile phase and the chromatograms were scanned by using Shimadzu CS-930 dual wavelength TLCS in zegzag scanning mode at λ_s 370nm and λR 250nm. Results Callbration graph was rectilinear between 2.7μg^16.2μg per spot for the jasminodin. Conclusion Satisfa- tory results were obtained with the average recovery ratio of 99.76%,RSD 2.27%.
文摘hhen ammonium sulfate-iron oxide is treated below 573 K, ammonium sulfate can spontaneously desperse on the surface of iron oxide. Simultaneously ammonium sulfate decomposes to some extent. During or after the dispersion, sulfate ion can interact with Fe atom on the surface of iron oxide to form a sort of surface sulfato complex of Fe and thus is transformed from the isolated into the bidentately bound form. Above 573 K the sulfato complex of Fe will gradually decompose with a further increase in temperature.
文摘Professor Ma Rongjun was bron in 1931 at Dacheng County of Hebei Province. He graduated from Northeast University of Technology in 1955 and studied as a postgraduate at Kosice
文摘Rong Tie was educated in the Central Academy of Fine Arts, majoring in calligraphy, in 1996, he began his postgraduate study in calligraphy at Capital Normal University. He studied in the “elite class” at China Institution of Arts Studies in 2002 and became a visiting scholar at Peking University in 2003. His titles include: National First-Class Artist, academician of the China Artists Association, deputy secretarygeneral of the Traveling and Friendship Center of the China Artist Association,
文摘The aim of this study was to develop comprehensive evaluation methods for the quality control of Ginseng Yang Rong Wan(RSYRW).Multi-wavelength fusion fingerprints were successfully developed by high-performance liquid chromatography,which avoided the one-sidedness of single fingerprinting.Characteristic fingerprints of thirty batches of samples were generated at five wavelengths and evaluated by quantified ratio fingerprint method(QRFM).The results showed that thirty batches of samples were classified into seven grades.The methods established in this paper were found suitable for the analysis of Ginseng Yang Rong Wan.
