Results 201 to 210 of about 111,518 (250)
Some of the next articles are maybe not open access.
Fìtoterapìâ, 2011
Empirical rules for the selection of chromatographic conditions on flash chromatography cartridges were developed, with an emphasis on gradient mode. These rules were then tested with separation of extracts from important medicinal plants including Curcuma xanthorrhiza, Piper nigrum and Salvia milthiorrhiza.
Olivier Potterat, Matthias Hamburger
exaly +5 more sources
Empirical rules for the selection of chromatographic conditions on flash chromatography cartridges were developed, with an emphasis on gradient mode. These rules were then tested with separation of extracts from important medicinal plants including Curcuma xanthorrhiza, Piper nigrum and Salvia milthiorrhiza.
Olivier Potterat, Matthias Hamburger
exaly +5 more sources
Chinese Journal of Chemical Engineering, 2019
Abstract Ultrasonic-assisted extraction (UAE) combined with medium pressure liquid chromatography (MPLC) was designed for carbazole separation from anthracene slag (AS). The effects of liquid/solid ratio, temperature, and extraction times on carbazole separation were investigated. When using CCl4 and ethyl acetate as extraction solvents and combining
Zhongqiu Liu +2 more
exaly +2 more sources
Abstract Ultrasonic-assisted extraction (UAE) combined with medium pressure liquid chromatography (MPLC) was designed for carbazole separation from anthracene slag (AS). The effects of liquid/solid ratio, temperature, and extraction times on carbazole separation were investigated. When using CCl4 and ethyl acetate as extraction solvents and combining
Zhongqiu Liu +2 more
exaly +2 more sources
A low-cost medium-pressure liquid chromatography system for preparative separations
Chromatographia, 1979On the basis of theoretical and economic considerations a medium-pressure liquid chromatography system for preparative separations was developed. The choice of stationary phases with an average particle size of about 50 μm allows a dry column packing technique and makes possible short separation times with low pressure drop.
H. Loibner, G. Seidl
exaly +2 more sources
Journal of Separation Science, 2012
Peoniflorin (PF) and albiflorin (AF) are two principal components of Paeonia species, which exhibit various biological activities such as improvement of blood circulation and immunoregulating function. To further utilization of waste parts of peony plants, an efficient method for preparative purification of these two ingredients from white peony ...
Liming Wang, Jiangyun Liu
exaly +3 more sources
Peoniflorin (PF) and albiflorin (AF) are two principal components of Paeonia species, which exhibit various biological activities such as improvement of blood circulation and immunoregulating function. To further utilization of waste parts of peony plants, an efficient method for preparative purification of these two ingredients from white peony ...
Liming Wang, Jiangyun Liu
exaly +3 more sources
Separation and Purification Technology, 2010
Abstract Ginsenoside-Ro which belongs to the oleanane-type saponins has anti-inflammatory, anti-platelet, anticomplementary and immunomodulatory activities. The present paper described the preparation of ginsenoside-Ro from panax ginseng with high recovery and efficiency by combination of normal-phase medium-pressure liquid chromatography (NP-MPLC ...
Ping Hu, Qionglin Liang, Guoan Luo
exaly +2 more sources
Abstract Ginsenoside-Ro which belongs to the oleanane-type saponins has anti-inflammatory, anti-platelet, anticomplementary and immunomodulatory activities. The present paper described the preparation of ginsenoside-Ro from panax ginseng with high recovery and efficiency by combination of normal-phase medium-pressure liquid chromatography (NP-MPLC ...
Ping Hu, Qionglin Liang, Guoan Luo
exaly +2 more sources
Chromatographia, 2009
A novel method for separation and on-line characterization of flavonoids from Asparagus officinalis by medium-pressure liquid chromatography coupled to electrospray ionization multi-stage mass spectrometry (MPLC-ESI-MSn) was successfully established. The hyphenation between MPLC and ESI-MSn was designed to keep the split ratio exactly in the range from
Jianguang Luo, Kong Lingyi
exaly +2 more sources
A novel method for separation and on-line characterization of flavonoids from Asparagus officinalis by medium-pressure liquid chromatography coupled to electrospray ionization multi-stage mass spectrometry (MPLC-ESI-MSn) was successfully established. The hyphenation between MPLC and ESI-MSn was designed to keep the split ratio exactly in the range from
Jianguang Luo, Kong Lingyi
exaly +2 more sources
Separation Science and Technology, 2014
Defatted seed meals, the byproducts of Indian mustard seed oil industry, which are just used as animal feedstock and nitrogen fertilizers, possess various nutrients and phytochemical compounds, such as sinigrin and gluconapin. The present study demonstrated a novel, low-cost, and efficient method for the co-production of sinigrin and gluconapin from ...
Hao Liang, Qipeng Yuan
exaly +2 more sources
Defatted seed meals, the byproducts of Indian mustard seed oil industry, which are just used as animal feedstock and nitrogen fertilizers, possess various nutrients and phytochemical compounds, such as sinigrin and gluconapin. The present study demonstrated a novel, low-cost, and efficient method for the co-production of sinigrin and gluconapin from ...
Hao Liang, Qipeng Yuan
exaly +2 more sources
Preparative hydrocarbon group type determination by automated medium pressure liquid chromatography
Analytical Chemistry, 1980Matthias Radke
exaly +2 more sources