AN363: Using Accelerated Solvent Extraction in Alternative Fuel Research

Instrument Type: Automated Sample Prep

The Accelerated Solvent Extraction (ASE) provides a fast and efficient way to extract various biomass samples for sugar analysis to determine sample viability for alcohol production. This application note describes methods for the extraction of sugars from biomass samples using acidified solvents (in-cell hydrolysis) and extracting pre-hydrolyzed samples.

AN364: Rapid Determination of Total Fat from Dairy Products

Instrument Type: Automated Sample Prep

The U.S. Nutritional Labeling and Education Act of 1990 requires nutritional labels listing the content of saturated and unsaturated fats in food. Accurate determination of fat in certain foods is difficult due to the binding or entrapment of the fat by the matrix. Accelerated Solvent Extraction (ASE) is an automated extraction technique that significantly reduces extraction time and solvent consumption and yields equivalent results. In this work, fat was extracted from sour cream, cream cheese, coffee creamer, heavy whipping cream, and low-fat milk.

AN1079: Simultaneous Determination of Trivalent Chromium and Hexavalent Chromium Using Accelerated Solvent Extraction and Ion Chromatography

Instrument Type: IC

Chromium mainly occurs in trivalent chromium (Cr(III)) and hexavalent chromium (Cr(VI)) forms. Due to highly oxidizing properties and high skin permeability, Cr(VI) is extremely toxic. The limit for Cr(VI) is low in all industries, such as 0.005 mg/kg in toy industry according to the European Union’s Toy Safety Directive of 2009 (2009/48/EC). This application determines Cr(III) and Cr(VI) simultaneously and is an improvement over TN24. Accelerated solvent extraction is used to extract both Cr(III) and Cr(VI), and to derivatize Cr(III) to achieve a simpler and faster detection.