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Droplet counter-current chromatography of indole alkaloids from Tabernaemontana hilariana
(1999-01-01)
This paper reports the separation of the indole alkaloids from the benzene extract of the root barks of Tabernaemontana hilariana (Apocynaceae). The crude alkaloid fraction was fractionated by droplet counter-current ...
Droplet counter-current chromatography of indole alkaloids from Tabernaemontana hilariana
(Wiley-Blackwell, 1999-03-01)
This paper reports the separation of the indole alkaloids from the benzene extract of the root barks of Tabernaemontana hilariana (Apocynaceae). The crude alkaloid fraction was fractionated by droplet counter-current ...
Cromatografia Por Interações Hidrofilicas (hilic): Estado Da Arte E AplicaçõesHydrophilic Interaction Chromatography (hilic): State Of The Art And Applications
(Sociedade Brasileira de Química, 2016)
Recent applications of analytical techniques for quantitative pharmaceutical analysis: A review
(2010-10-01)
The intension of this paper was to review and discuss some of the current quantitative analytical procedures which are used for quality control of pharmaceutical products. The selected papers were organized according to ...
Negative chromatography on agarose-TREN as a technique for purification of protein spiked in soybean seeds extract
(Elsevier Sci LtdOxfordInglaterra, 2012)
Preparative droplet counter-current chromatography for the separation of the new nor-seco-triterpene and pentacyclic triterpenoids from Qualea parviflora
(Vieweg, 2006-12-01)
The methanolic extract of the bark of the medicinal plant Qualea parviflora (Vochysiaceae) contains new nor-seco-triterpene and pentacyclic triterpenoids. They were separated in a preparative scale using droplet counter-current ...
Use of commercial anion-exchange resins as solid support for peptide synthesis and affinity chromatography
(Elsevier B.V., 2003-07-01)
This report demonstrates that due to the presence of residual reactive sites in their matrices, classical diethylaminoethyl-attaching commercial anion-exchanger resins such as DEAE-MacroPrep and DEAE-Sephadex A50 supports ...
Quick preparative separation of natural naphthopyranones with antioxidant activity by high-speed counter-current chromatography
(2002-11-01)
The natural naphthopyranones paepalantine (1), paepalantine-9O-β-D-glucopyranoside (2) and paepalantine-9-O-β-D-allopyranosyl-(1→6)-O-β-D-glucopyranoside (3) were separated in a preparative scale from the ethanolic extract ...