Results 41 to 50 of about 335,927 (147)
Journal of Medicinal Plants, 2012 Background: Flavonoids are as one set of the polyphenolic compounds among secondary metabolites in different organs of plants that are used in plant chemotaxonomy and pharmacognosy.
M Noori, H Zare Mayvan, A Mazaheri
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Isolation and Identification of Fenolic Acid in Katu Leaves (Sauropus Androgynus (L.) Merr. )
Makara Journal of Health Research, 2010 To improve traditional drugs in changing to fitofarmaka studies should be conducted on the chemical content of plants used as drugs. In this study, fenolic acid compounds in katu leaves, which are used for traditional medicine, were isolated and ...
Sri Harsodjo Wijono Soewandi
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Novel design of low volume mobile phase paper chromatography
Green Analytical ChemistryA novel design and set up of paper chromatography in the form of radial serpentine arms laying horizontally is proposed. The consumption of mobile phase is reduced to be 1 mL or less as compared to the tens of mL typically used in the conventional set ...
Jacob DeMott +5 more
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Source apportionment and transport of pollutants within the South African paper recycling chain
South African Journal of ScienceRecycled paper is a valuable commodity that forms an intrinsic part of promoting sustainable resource utilisation. In this study, we aimed to investigate the possible sources and transport of semi-volatile organic pollutants in paper grades used in the ...
Nondumiso N. Mofokeng +2 more
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Separation of whey proteins for chromatography liquid
Scientia Agropecuaria, 2010 This paper describes and compares three chromatographic methods for the analysis and quantification of most abundant proteins in cheese whey, -lactalbumin and -lactoglobulin. The methods were: Reverse-phase high performance liquid chromatography, anion
Abraham D. Giraldo Zuñiga +3 more
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Methanol Equilibrium Curves of Power Transformer Oil–Paper Insulation
EnergiesTo eliminate the problem of the aging of cellulose insulation in the manufacturing stage, a new drying method is being developed based on the use of methanol vapors.
Piotr Przybylek
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The use of DRS and GC to study the effects of ionizing radiation on paper artifacts
Nukleonika, 2015 Radiation preservation of objects of historical significance is an interesting proposition for museums, archives, libraries and private collectors. In this paper, we have limited ourselves to studying the effects of ionizing radiation on the paper.
Głuszewski Wojciech +3 more
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Assay of nanogram levels of triglyceride lipase with a radioactive substrate
Journal of Lipid Research, 1972 A simple, sensitive procedure for the determination of triglyceride lipase activity has been developed. Nanogram amounts of oleic acid hydrolyzed from commercially available [14C]triolein were readily determined by the counting of the radioactivity of ...
Walton H. Marsh, Patrick J. Fitzgerald
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Sensing and Bio-Sensing Research, 2020 Detection of mycotoxins by conventional methods such as ELISA or LC-MS can be expensive and time-consuming. Therefore, paper-based biosensors can be effectively used for on-site analysis, due to their low cost and easy detection procedures. Nevertheless,
V.A. Mirón-Mérida +6 more
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Evaluation of gel chromatography for plasma lipoprotein fractionation
Journal of Lipid Research, 1970 The fractionation of lipoproteins of normal and hyperlipidemic subjects on a column of 2% agarose was compared with ultracentrifugation and paper electrophoresis procedures. The following results were obtained.
Teizo Sata +3 more
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