An efficient strategy based on liquid-liquid extraction and pH-zone-refining counter-current chromatography for selective enrichment, separation and purification of alkaloid and organic acid from natural products.
Sign Up to like & getrecommendations! Published in 2020 at "Journal of separation science"
DOI: 10.1002/jssc.202000528
Abstract: This study presents an efficient strategy based on liquid-liquid extraction and pH-zone-refining counter-current chromatography for selective enrichment, separation and purification of alkaloid and organic acid from natural products. Firstly, an acid or base modified two-phase… read more here.
Keywords: organic acid; separation; liquid extraction; liquid liquid ... See more keywords
Aporphine Alkaloids from Triclisia dictyophylla Diels by pH-Zone Refining Countercurrent Chromatography
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DOI: 10.1007/s10337-020-03977-x
Abstract: A new dimeric aporphine alkaloid, biscocsarmine, 2 , together with lirioferine, 1 , and cocsarmine, 3 , were isolated from the ethanol extract of the stems of Triclisia dictyophylla Diels (Menispermaceae) using a preparative pH-zone… read more here.
Keywords: aporphine alkaloids; zone refining; dictyophylla diels; triclisia dictyophylla ... See more keywords
Isolation and Purification of Phenolic Acids from Sugarcane (Saccharum officinarum L.) Rinds by pH-Zone-Refining Counter-Current Chromatography and Their Antioxidant Activity Evaluation
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DOI: 10.1007/s12161-017-0824-3
Abstract: The phenolic acids exhibit significant antioxidant, antiinflammatory, antimutation, and tyrosinase inhibitory effects. A high efficient and specific method for separation of phenolic acids from the sugarcane rinds based on pH-zone-refining counter-current chromatography technique was established.… read more here.
Keywords: antioxidant activity; acids sugarcane; phenolic acids; acid ... See more keywords
Purification of naphthalene by zone refining: Mathematical modelling and optimization by swarm intelligence-based techniques
Sign Up to like & getrecommendations! Published in 2020 at "Separation and Purification Technology"
DOI: 10.1016/j.seppur.2019.116089
Abstract: Abstract Naphthalene based ionic liquids have been recently reported in applications of photoluminescence at room temperature. Further usages of Naphthalene cover phosphorescence aspects and liquid-phase exfoliation of graphite for graphene sheets production. Naphthalene is also… read more here.
Keywords: intelligence; zone; molten zone; purification ... See more keywords
Research Status of High-Purity Metals Prepared by Zone Refining
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DOI: 10.3390/ma14082064
Abstract: The zone refining method is a physical method for effectively purifying metals. Increasing yield and reducing impurity content have always been the focus of its research. This article systematically summarizes the relevant research on the… read more here.
Keywords: purity metals; zone refining; high purity; research status ... See more keywords
Research of High-Purity Lanthanum Prepared by Zone Refining
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DOI: 10.3390/ma15134603
Abstract: In this paper, the purification of lanthanum was studied by using zone-refining technology. The equilibrium distribution coefficient of impurities was calculated using a liquidus slope method to reveal impurities’ distribution properties. Meanwhile, the analysis of… read more here.
Keywords: zone refining; purity lanthanum; high purity; refining ... See more keywords