The Twister: Efficient solvent-free extraction of organic compounds from aqueous matrices

The GERSTEL Twister® combined with TD-GC/MS enables efficient extraction and determination of organic compounds from aqueous matrices based on Stir Bar Sorptive Extraction (SBSE). SBSE is a solvent-free extraction technique, which is significantly faster than most conventional extraction techniques. SBSE is up to 1000 x more sensitive than SPME since the stir bar has significantly more sorbent volume and since it can extract, and concentrate analytes from, a much larger sample volume due to the efficient stirring.