High-performance liquid chromatographic separation of xanthomegnin (cas 1685-91-2) and viomellein

Add time:10/01/2019    Source:sciencedirect.com

Preliminary separations of xanthomegnin (cas 1685-91-2) and viomellein demonstrated some irreversible binding to silica. However, reversed-phase high-performance liquid chromatographic procedures on C18 columns showed that binding could be minimized by the inclusion of sodium dodecyl sulfate in the mobile phase. Capacity factors for xanthomegnin and viomellein in several solvent systems are reported. Baseline resolution of the two mycotoxins was achieved with water—acetonitrile—sodium dodecyl sulfate—sulfuric acid (55:45:0.02:0.04, v/v/w/w). Utilization of radial compression technology provided for separation times of 14–16 min. Quantitative techniques were established for the substances based on solvent extraction from the natural substrate followed by reversed-phase high-performance liquid chromatographic separation. In addition to effective separation, the procedure appeared to partially resolve two isomeric forms of viomellein. The toxin occurred in a single form in the initial, crude fungal extract but apparently the compound was racemized during exposure to silica.

We also recommend Trading Suppliers and Manufacturers of xanthomegnin (cas 1685-91-2). Pls Click Website Link as below: cas 1685-91-2 suppliers

Prev:2D-PAGE examination of mRNA populations from Pénicillium freii mutants deficient in xanthomegnin (cas 1685-91-2) biosynthesis
Next:Studies on the refrigerated storage of wheat (Triticum aestivum). 2. Ergosterol, xanthomegnin (cas 1685-91-2), viomellein and brevianamide A after inoculation with Penicillium viridicatumUntersuchungen zur kühllagerung von weizen (Triticum aestivum). 2. Mitteilung — ergosterin, xanthomegin, viomellein und brevianamid A nach inokulation mit Penicillium viridicatum)