ResourceSeparations
Concentrating Phenolic Compounds Using the XcelVap® Evaporation/Concentration System
7 Aug 2014Natural and synthetic phenolic compounds have been used in a wide range of applications, from antiseptics and fungicides, to food additives. This application note describes a procedure for the concentration of organic solvent extracts containing phenolic compounds. The evaporation and analysis of phenolic compounds was carried out using the XcelVap Evaporation/Concentration System and yields excellent recoveries when used in a fully automated capacity.
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Sample PreparationSample preparation can improve the quality and speed of separation techniques. Products to assist sample preparation include filtration equipment, evaporators, membranes and sieves.Evaporators and Freeze DryersCentrifugal evaporation is used for solvent removal from a sample. This is a useful technique for sample concentration or sample drying. Many centrifugal evaporators are modular with a central vacuum pump for generating low pressure. Useful features of evaporators or vacuum ovens include minimal solvent bumping, solvent resistance, computer control, temperature regulation and benchtop design.GC-MS GC-MS (gas chromatography-mass spectrometry) instruments and equipment are used to separate, quantify and identify mixtures of small and volatile compounds, such as polycyclic aromatics, fatty acids and alcohols. Often used in drug detection, forensic investigation and environmental analysis for pesticides and contaminants, GC-MS is a powerful addition to your lab’s analytical capabilities. GC-MS/MS instruments equipped with a qTOF or triple quadrupole analyzers can give greater sensitivity and resolution to your analysis. Find the best GC-MS instruments and equipment in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Food AdditivesSample ConcentrationSample concentration involves the removal of solvents from samples using technologies such as centrifugal evaporation, lyophilization and rotary evaporation.