A breakthrough in sample automation and concentration for GC–MS.
Centri is the first platform to offer high-sensitivity unattended sampling and pre‑concentration of VOCs and SVOCs in liquid, solid and gaseous samples.
Centri combines market-leading robotics and analyte-trapping technologies to offer enhanced throughput and performance for HiSorb™ high-capacity sorptive extraction, headspace, SPME and thermal desorption.
Centri is ideal for environmental, food, fragrance and clinical laboratories who:
• Struggle with time-consuming manual sample preparation such as liquid–liquid extraction and SPE, and want to replace these with automated high-capacity sorptive extraction, thermal desorption, headspace or SPME techniques.
• Need improved sensitivity for the analysis of organic species in solids or liquids.
• Want to run many different GC–MS analyses on one platform, using various injection techniques and workflows.
Product benefits
Improve performance – Achieve ppt-level sensitivity for VOCs and SVOCs by cryogen-free analyte trapping, delivering a sharp, concentrated band of vapour to the GC and optimising sensitivity for trace-level analytes
Improve versatility – Analyse VOCs and SVOCs over a wide concentration range in liquid, solid and gaseous samples.
Improve sample throughput – Benefit from Centri’s ability to run integrated sequences of multiple sampling techniques and run in ‘overlap’ mode, for unattended operation all weekend. Optimisation of focusing conditions allows interferences such as water and ethanol to be purged to vent before analysis, thus dramatically improving both analytical performance and long-term system stability.
Peace of mind – Future-proof your lab with a wide range of sampling options. A sophisticated combination of dual, mass-flow-controlled split points and adjustable sampling volumes allows Centri to handle samples ranging in concentration from ppt to percent level.
A key characteristic of Centri is the use of multi-bed, sorbent-packed focusing traps and re-collection tubes. The type of sorbent materials used and the backflush desorption of tubes and traps allow a wide analyte range – from VOCs to SVOCs – to be analysed in a single run.
