Efficient, Baseline Separation of Pyrethrins by Centrifugal Partition Chromatography
نویسندگان
چکیده
منابع مشابه
Efficient, Baseline Separation of Pyrethrins by Centrifugal Partition Chromatography
Pyrethrins are natural pesticides present in the oil extracted from the flowers of Chrysanthemum cinerariaefolium. They are potent ion-channel neurotoxins which have higher selective toxicity for insects compared to mammals. These phytochemicals have an exceptionally safe environmental profile and are an attractive natural alternative to organophosphate insecticides currently used in agricultur...
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Centrifugal partition chromatography in the pH-zone-refining mode was successfully applied to the separation of alkaloids, directly from a crude extract of Ipomoea muricata. The experiment was performed with a two-phase solvent system composed of methyl tert-butyl ether (MtBE)-acetonitrile-water (4:1:5, v/v) where triethylamine (10 mM) was added to the upper organic stationary phase as a retain...
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Ion-exchange displacement chromatography has been adapted to centrifugal partition chromatography. The use of an ionic liquid, benzalkonium chloride, as a strong anion-exchanger has proven to be efficient for the preparative separation of phenolic acid regioisomers. Multigram quantities of a mixture of three hydroxycinnamic acid isomers were separated using iodide as a displacer. The displaceme...
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The varying success of known chromat’ographic procedures for the separation and identification of microquantities of estrogens (1, 2) has led to the development of paper partit!ion chromatographic techniques which are reported here. These t’echniques permit rapid separation, identification, and quantitative estimation of free est.rogens in biological materials. The solvent systems of o-dichloro...
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ژورنال
عنوان ژورنال: Journal of Chromatography & Separation Techniques
سال: 2017
ISSN: 2157-7064
DOI: 10.4172/2157-7064.1000362