The TT24-7xr achieves continuous on-line monitoring using two focusing traps

The sample is first collected onto Trap A. The sample flow is then switched to Trap B, while Trap A is desorbed and the compounds analysed.

This alternating sampling/desorption process is also applied to the standard/blank and is repeated until the end of the analytical sequence.

Advantages of TT24-7xr

• Extended sample coverage – The use of two focusing traps working in tandem ensures continuous sampling with no data gaps.
• Wide analyte range – Trapping temperatures as low as -30ºC, backflushed trap desorption and inert, optimised flow paths allow quantitative detection of VVOCs and VOCs. Whilst single tube analysis provides detection of SVOCs up to C₄₀
• Effective water management – Kori-xr water management modules enable simultaneous sampling of C₂ and polar VOCs, including aldehydes and ketones.
• Laboratory efficiency - Automated, unattended stream selection for easy sequencing between the samples, blank and calibration standard channels at user-defined frequencies.
• Cost saving – The reliable electrically-cooled focusing traps eliminates the expense and inconvenience of liquid cryogenic cooling and removes the risk of ice blockages thus maximising uptime.
• Precision and data quality – An optional internal standard accessory enables gas-phase internal standards to be introduced onto either focusing trap during analysis. This monitors the instrument performance over extended periods of continuous running, enhancing the quality of your data.
• Laboratory integration – TT24-7xr is compatible with GC and GC–MS from all major manufacturers, minimising the upfront investment required.