Results 211 to 220 of about 117,843 (251)
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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 ...
Shilin Yang, 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 ...
Shilin Yang, Liming Wang, Jiangyun Liu
exaly +3 more sources
Chromatographia, 1975
A general method is described for the separation of compound classes present in the mixtures of saturated and aromatic hydrocarbons. The method is utilizing low and medium pressure elution liquid-solid chromatography (LSC) on alumina or silica and is applicable to a large number of petroleum and condensate distillates, as well as to synthetic ...
Yu. I. Chumakov, S. K. Lopatenko
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A general method is described for the separation of compound classes present in the mixtures of saturated and aromatic hydrocarbons. The method is utilizing low and medium pressure elution liquid-solid chromatography (LSC) on alumina or silica and is applicable to a large number of petroleum and condensate distillates, as well as to synthetic ...
Yu. I. Chumakov, S. K. Lopatenko
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Journal of Chromatography A, 1982
Abstract Leozym, a commercial pectic enzyme preparation. was subjected to medium-pressure liquid chromatography on weakly, medium, and strongly acidic cation exchangers and on weakly and strongly basic anion exchangers, and to hydrophobic chromatography on the ionogenically unsubstituted glycomethacrylate macroreticular gel of the Spheron type.
L. Rexová-Benková +3 more
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Abstract Leozym, a commercial pectic enzyme preparation. was subjected to medium-pressure liquid chromatography on weakly, medium, and strongly acidic cation exchangers and on weakly and strongly basic anion exchangers, and to hydrophobic chromatography on the ionogenically unsubstituted glycomethacrylate macroreticular gel of the Spheron type.
L. Rexová-Benková +3 more
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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, Guoan Luo, Qionglin Liang
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, Guoan Luo, Qionglin Liang
exaly +2 more sources
Journal of Separation Science, 2015
Gardeniae fructus is one of the most frequently used herbs in traditional Chinese medicine. In the present study, a process for the enrichment of six iridoid glycosides from Gardeniae fructus was developed using medium‐pressure liquid chromatography combined with macroporous resin and reversed‐phase chromatography.
Yun, Wang +9 more
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Gardeniae fructus is one of the most frequently used herbs in traditional Chinese medicine. In the present study, a process for the enrichment of six iridoid glycosides from Gardeniae fructus was developed using medium‐pressure liquid chromatography combined with macroporous resin and reversed‐phase chromatography.
Yun, Wang +9 more
openaire +2 more sources
Journal of Chromatography A, 1990
Abstract Previously the isolation of a single glycoprotein (pgt-elicitor) from cell walls of the phytopathogenic fungus Puccinia graminis f.sp. tritici Erics. & Henn., which elicits defence reactions in wheat leaves was described. The apparent molecular mass of this compound, isolated via concanavalin A affinity chromatography and anion-exchange ...
B. Beissmann, H.J. Reisener
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Abstract Previously the isolation of a single glycoprotein (pgt-elicitor) from cell walls of the phytopathogenic fungus Puccinia graminis f.sp. tritici Erics. & Henn., which elicits defence reactions in wheat leaves was described. The apparent molecular mass of this compound, isolated via concanavalin A affinity chromatography and anion-exchange ...
B. Beissmann, H.J. Reisener
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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
Ling-Yi Kong, Jianguang Luo
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
Ling-Yi Kong, Jianguang Luo
exaly +2 more sources
Journal of Chromatography A, 1990
Abstract The location of the fronts in thin-layer chromatography (TLC) with multicomponent mobile phases is discussed with reference to the possibilities of mobile phase transfer via analytical overpressured-layer chromatography (OPLC) to preparative medium-pressure liquid chromatography (MPLC).
Szabolcs Nyiredy +3 more
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Abstract The location of the fronts in thin-layer chromatography (TLC) with multicomponent mobile phases is discussed with reference to the possibilities of mobile phase transfer via analytical overpressured-layer chromatography (OPLC) to preparative medium-pressure liquid chromatography (MPLC).
Szabolcs Nyiredy +3 more
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Analytica Chimica Acta, 2015
Trends towards portable analytical instrumentation of the last decades have not been equally reflected in developments of portable liquid chromatography (LC) instrumentation for rapid on-site measurements. A miniaturised medium pressure capillary LC (MPLC) system with gradient elution capability has been designed based on a flexible modular ...
Yan Li +7 more
openaire +2 more sources
Trends towards portable analytical instrumentation of the last decades have not been equally reflected in developments of portable liquid chromatography (LC) instrumentation for rapid on-site measurements. A miniaturised medium pressure capillary LC (MPLC) system with gradient elution capability has been designed based on a flexible modular ...
Yan Li +7 more
openaire +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, Tianxin Wang
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, Tianxin Wang
exaly +2 more sources