Results 211 to 220 of about 111,518 (250)
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Instrumentation and Separation Results of Medium Pressure Liquid Chromatography
Journal of Chromatographic Science, 1987This paper describes the assembly, usage, operation, and separation results of a medium pressure liquid chromatography (MPLC) instrument. Its ability to separate compounds with high resolution makes it a powerful tool for many chemistry laboratories. This equipment can be easily built from inexpensive commercially available materials.
J R, Hwu, J A, Robl, K P, Khoudary
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Journal of Separation Science, 2021
AbstractSaxifraga tangutica is widely used as a medicinal herb to treat hepatic diseases. Here, we developed a class separation method to separate gallic acid derivatives 1,1‐diphenyl‐2‐picrylhydrazyl inhibitors from the methanol extract of Saxifraga tangutica.
Jun Dang +5 more
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AbstractSaxifraga tangutica is widely used as a medicinal herb to treat hepatic diseases. Here, we developed a class separation method to separate gallic acid derivatives 1,1‐diphenyl‐2‐picrylhydrazyl inhibitors from the methanol extract of Saxifraga tangutica.
Jun Dang +5 more
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Medium-pressure liquid chromatography of platinum metal ions on Spheron DEAE
Collection of Czechoslovak Chemical Communications, 1983Spheron DEAE (modified macroreticular hydroxyethylmethacrylate-ethylenedimethacrylate copolymer) was used for chromatographic separation and determination of Rh(III), Pd(II), and Pt(IV) in chloride medium. The most suitable composition of the mobile phase was looked for by studying the influence of hydrochloric acid concentration on the capacity ratios
František Vláčil +2 more
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Analytical medium-pressure liquid chromatography of cellulolytic enzymes on spheron ion exchangers
Journal of Chromatography A, 1983Abstract Cellulolytic enzymes from the cultivation liquid of Trichoderma viride-reesei were submitted to a rapid medium-pressure liquid chromatography, analytical and semipreparative, on weakly, medium and strongly acidic cation exchangers and on medium and strongly basic anion exchangers spheron 1000.
Z. Hostomská, O. Mikesš
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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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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
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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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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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