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Product news: 
4th generation of the world's most powerful multimode inlet
We are happy to introduce you the new OPTIC-4 multimode inlet for gas chromatography. The patented low thermal mass design of the inlet body together with direct resistive heating provide fast linear temperature programming up to 600 °C at rates as high as 60 °C/s. In addition to standard sampling modes, the programmable inlet can operate effectively as Large Volume Injection, Pyrolysis or Thermal Desorption sample introduction device. With the options for sub-ambient cooling, cryogenic trapping and automated liner exchange, OPTIC-4 is the world's most versatile inlet for Gas Chromatography. 
New publication with OPTIC: Evaluation of comprehensive on-line liquid chromatography thermally assisted hydrolysis and methylation-gas chromatography-mass spectrometry for characterization of sulfonated lignins. Sulfonated lignins, used as dispersants in agrochemical formulations, have been characterized by hyphenation of ion-pair RPLC and thermally assisted hydrolysis and methylation-GC-MC (THM-GC-MS). The chemical structure of a series of selected lignins was evaluated, both in terms of overall composition and in terms of composition as a function of molecular size. Some sulfonated lignins give rise to unstable formulations. In the compositional analysis, these samples were found to yield additional fragments. A newly developed comprehensive method made it possible to monitor the occurrence of these fragments as a function of molecular size. In addition to differences in the molecular size between "good" and "bad" batches, clear differences in chemical composition were established. Brudin S, Kaal E, Janssen HG, Schoenmakers P. J Sep Sci. 2010 Nov;33(22):3604-11. 
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