Centri®
A breakthrough in
sample automation and concentration for GC–MS
Centri is the first platform to offer high-sensitivity
unattended sampling and preconcentration of VOCs and SVOCs in liquid, solid
and gaseous samples.
Powered by best-in-class robotic
automation, Centri’s
modular design gives unrivalled flexibility for unattended, rapid and efficient
extraction and enrichment of VOCs and SVOCs. Offering four sampling modes,
Centri gives maximum versatility for liquid, solid and gaseous samples.
Innovation lies at the heart of
Centri. Incorporating Markes’ unique cryogen-free focusing trap technology,
Centri optimises analytical sensitivity, and enhances the quality of
information obtained from GC–MS.
Whichever major brand of GC–MS
you’re using, the Centri sample extraction & enrichment platform lets you discover more and deliver more.
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It
is often not immediately clear upfront which of the different sample
preparation techniques for the analysis of volatiles will give the best results
– this instrument simply combines them all. 
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Who uses Centri?
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.
- 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.
- Peace of
mind – Future-proof your lab with a wide range of sampling options.
Sample modes
| SPME and SPME–trap – Fast and sensitive sample
extraction, with a range of fibre types offering analyte selectivity.  
| HiSorb™ high-capacity sorptive extraction– Robust,
fully automated probe-based immersive or headspace sampling from liquids and
solids. ---Inert-and-stainless---Group-without-tube.jpg) 
|
| Headspace and Headspace–trap – Versatile
sampling from solids and liquids contained in regular headspace vials.
.jpg)  | Thermal desorption – Using industry-standard tubes
to analyse VOCs and SVOCs in air, or released from materials.
.jpg) 
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- Cryogen-free
analyte trapping increases sensitivity and allows water and solvents to be selectively
purged.
- Re-collection
of split flows, available with every injection mode, avoids having to repeat
lengthy sample extraction procedures, and enables storage and re-analysis at a
later date.
- Market-leading robotics and 50-tube TD autosampler reliably automate all operations.
- Barcode
readers and RFID TubeTAGs allow
samples to be easily tracked, for a complete chain of custody from the original
sample to the re-collected aliquot.
- Cryogen-free
and solvent-free operation reduces cost per sample and is more
environmentally friendly than conventional tedious manual sample
preparation techniques.
Further information
Centri application & technical notes
Centri is ideally suited for those working in the food & drink or environmental sectors. Click the images to see the range of application and technical notes available.
Gallery Images
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