Catalog excerpts
GERSTEL Twister® The GERSTEL Twicester® offers a simple possibility to position one or more Twisters magnetically on the inner wall of a sample vial for more efficient sample extraction. The Twicester approach enables the extraction of a sample using more Twisters simultaneously, for example using Twisters with different types of phases for a more complete combined extraction and improved analyte recovery. Twister/SBSE Benefits: • Up to 1000 times more sensitive than SPME • Quantitative, with large linear range • A large number of samples can be extracted simultaneously for highest...
Open the catalog to page 2GERSTEL Flex-Twister GERSTEL Twicester® The Flex Twister was developed specifically for Solvent Assisted Stir Bar Sorptive Extraction (SA-SBSE), a novel extraction technique that relies on Flex Twisters that have been swollen with a user defined solvent. The solvent is added to the Flex Twisters before the extraction step leading to a modification of the sorbent phase properties and thereby, depending on the solvent used, to significantly improved extraction recovery for polar compounds with log Kow values between 1.0 and 2.0. Compared with standard SBSE, the SA-SBSE phase volume is...
Open the catalog to page 3Twister Back Extraction TBE Clean and well-conditioned TD tubes and Twisters are essential in order to fully take advantage of the high sensitivity of the thermal desorption technique and to achieve the best possible quality of analysis. The TC 2 operates independently of the GC/MS system, eliminating the risk of system contamination during conditioning and keeping the GC/MS available for analytical tasks ensuring maximum productivity. During conditioning in the TC 2, TD tubes are either held at a user-specified fixed temperature or undergo a specified temperature program cycle while being...
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