Now showing items 31-40 of 10819
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
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
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 ...
Extraction and pre-concentration of volatile organic compounds by membrane permeation for chromatography analysis.
(Soc Brasileira QuimicaSao PauloBrasil, 2000)
Use of chemically modified silica with beta-diketoamine groups for separation of alpha-lactoalbumin from bovine milk whey by affinity chromatography
(Academic Press Inc Jnl-comp SubscriptionsSan Diego, 1997)