20
Cryogenic Trapping System for Gas Chromatography
GL Sciences has released an upgrade to their CryoFocus 4. Cryogenic cold trapping is a technique where part of a column is cooled down to temperatures down to -150°C. Analytes are focused at the head of the column by cooling its selected section to sub-ambient temperature. Analytes that might normally not be retained, can now be trapped. This refocussing within the cryo-trap will result in sharper peaks on your chromatogram.
Using the same technique as in the OPTIC instrument, the CryoFocus has a highly accurate and very fast heating ramp, up to 60°C/sec. The temperature range is limited to 350°C so that it can operate within the temperature limits of GC capillary columns. With a fast heating cryo-trap, better detection limit and better resolution can be seen on the detector.
The dosing of the liquid nitrogen to the trap is done using a valve. The sound made by such valve can be an intense presence in a laboratory. The latest CryoFocus update released includes a silent version of the valve, while improving control over the lower temperatures. The silent CryoFocus 4 upgrade is supplied with all new systems, but also available as an upgrade to your existing system. Another great example where GL Sciences upgrades their
instruments not only to guarantee the highest quality, but to also provide the best user experience. More information online:
ilmt.co/PL/O9JL and
ilmt.co/PL/g1n9
59587pr@reply-direct.com
Fully Automated Sample Preparation System Accelerates Chromatography Workfl ows
The Thermo Scientifi c EXTREVA ASE Accelerated Solvent Extractor is the fi rst system to automatically extract and concentrate analytes of interest from solid and semi-solid samples, such as persistent organic pollutants (POPs), polycyclic aromatic hydrocarbons (PAHs) or pesticides, in a single instrument, eliminating manual sample transfer for a walk-away sample-to-vial workfl ow.
The system is also the fi rst to perform four sample extractions and concentrations in parallel, signifi cantly improving sample throughput and laboratory productivity. With manual intervention signifi cantly reduced by a factor of three, in some cases, results can be more accurate and reliable - allowing users more time to focus on value-added tasks. Analytical labs extracting from solid or semi-solid matrices can pair the sample prep instrument with gas chromatography (GC), GC-mass spectrometry (MS) or liquid chromatography (LC)-MS systems.
“Traditional sample preparation for chromatography with solid or semi-solid samples is labour-intensive, prone to
errors and can stifl e lab productivity,” said Dino Alfano, Vice President and General Manager, Ion Chromatography and Sample Preparation, Thermo Fisher Scientifi c. “Even with current automation solutions, the process can involve time-consuming manual navigation of multiple instruments. By seamlessly performing sample extraction and evaporation of four samples in parallel, the EXTREVA ASE system redefi nes this cumbersome workfl ow. Streamlining workfl ows allows our customers to reduce manual sample preparation steps from hours to minutes, thereby increasing their productivity, minimising errors, and dramatically reducing solvent use; ultimately helping them meet sustainability and cost goals.”
Matthew MacLennan, Director, LC/MS/MS DevOps, Pacifi c Rim Laboratories, said: “We are looking to innovate our processes with technologies that will enable us to extract the most diffi cult and complex matrices with ease. EXTREVA ASE does just that for our POPs extractions.”
More information online:
ilmt.co/PL/eVkG 59158pr@reply-direct.com
Interested in publishing a Technical Article?
Contact Gwyneth on +44 (0)1727 855574
or email:
gwyneth@intlabmate.com Our articles are read by over 73,000 readers in print, online and via our Mobile App.
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