Markes International's Centri 90 is an automated platform for routine sampling and enrichment by high-capacity sorptive extraction (HiSorb™), headspace, SPME and SPME Arrow, with additional chromatographic performance provided by trap-based preconcentration.
Along with advanced options for water management, Centri 90 provides excellent analytical performance across a wide analyte range, and especially for early-eluting VVOCs.
Conventional GC injection modes remain available, allowing you to maintain existing workflows while also evaluating the benefits of preconcentration using the focusing trap.
Centri 90 can be used with a choice of carrier gases (helium, hydrogen and nitrogen) enabling greater flexibility of analysis and cost-saving.
Why use Centri 90?
- Flexibility: Fully modular sampling and automation options with a clear upgrade pathway, allowing scientists to comprehensively characterise the VOC and SVOC profiles of solids, liquids and gaseous samples.
- Sensitivity: Enhanced chromatographic resolution and greater compound detection through preconcentration and multi-step enrichment (MSE®).
- Automation: A fully automated workflow – including sorptive extraction – using gold-standard robotics to deliver high performance and productivity.
- Future-proof: Maximise ROI and reduce reliance on gas cylinders by adopting hydrogen carrier gas now or at a later stage.
- Productivity: Centri 90 supports high-throughput analysis of up to 300 sample vials, with a compact footprint for seamless integration with existing GC–MS systems.
- Upgrade potential: Centri 90 can be easily upgraded, to Centri 180, to extend the range of techniques by adding thermal desorption capability.
- Cost-saving: Eliminate the expense and inconvenience of liquid cryogen, and reduce the risk of ice blockages, by using controlled electrical cooling.
Key features:
- HiSorb™ high-capacity sorptive extraction – Robust, fully automated workflows using probe-based immersive or headspace sampling from both liquid and solid samples.
- SPME–trap and SPME Arrow–trap– Fast and sensitive sample extraction, with a range of fibre types offering analyte selectivity.
- Headspace–trap – Versatile sampling from solids and liquids contained in regular headspace vials.
- Multi-Gas enabled– Independently certified as hydrogen safe. Reduce running costs and increase throughput with hydrogen carrier gas.