Markes Kori-xr Water Abstraction Device

Kori-xr is a novel water management solution for canister and on-line monitoring.

The Markes Kori-xr water abstraction device delivers outstanding results for on-line and canister analysis of humid air by TD–GC–MS without any need for liquid cryogen. The efficient removal of water by Kori-xr permits lower temperatures to be used in the focusing trap without risk of ice formation, allowing quantitative retention of VOCs, VVOCs, oxygenates and monoterpenes on the UNITY-xr™ thermal desorber.

Kori-xr is an add-on accessory for the CIA Advantage Automated Canister Analyzer or UNITY-Air Server-xr Online Analysis.

Instrument Features

Electrically-cooled (no cryogen) trap selectively removes water from the sample stream before it enters the focusing trap.
Allows simultaneous, quantitative analysis of C2 compounds, VOCs, VVOCs, oxygenates (OVOCs), monoterpenes and other polar species.
Compatible with gas-phase samples ranging from below ambient pressure to 50 psig.
Permits lower trapping temperatures without the risk of ice formation.
Improved detection limits to 10 ppt or less with regular GC–quad MS – far exceeding all standard method requirements.
Intuitive control software: Markes Instrument Control (MIC).

Purchase Markes sampling consumables from our online store.

Benefits of the Markes Kori-xr:

Improved performance – Using Kori-xr results in better chromatography for C₂ compounds, non-polar C₃+ compounds, monoterpenes and polar VOCs in humid environments, compared to a Nafion™ dryer or a trap temperature of 25°C.
Easy system integration – Kori-xr is compatible with UNITY-xr systems configured with Air Server-xr or CIA Advantage-xr modules.
Selective water removal – An electrically-cooled trap selectively removes water prior to analyte focusing. Trapped water is then expelled at the same time as sample desorption from the UNITY-xr focusing trap, without increasing sampling or analysis times.
High sensitivity – Part-per-trillion detection limits are easily achievable when used in conjunction with regular GC–quad MS.
Better productivity – Simultaneously analyze very volatile organic compounds and polar & non-polar species.