BTEX (Benzene, Toluene, Ethylbenzene, o,m,p-Xylene) represents a group of volatile organic compounds (VOCs) and exists as gases at atmosphere pressure. Due to its water solubility, it’s classified as water contaminant and it’s also hazardous to health.

The recovery of VOCs analysis in water differs depending on sample preparation. Its high volatility decreases the recovery with LLE (Liquid/Liquid Extraction) or SPME (Solid Phase Micro Extraction).

So, VOCs analysis commonly goes with Headspace or Purge & Trap sample preparation but the Ushaped sparger of Purge & Trap can be easily contaminated when it comes to analyzing waste water including some particles, which finally reduces the accuracy.

So, it’s better to prepare the sample in Headspace, especially Dynamic Headspace when analyzing trace level of VOCs or semi-VOCs.
The analysis of BTEXs by YL6900 GC/MS solution with the Dynamic Headspace technic is applied to achieve the analytical results with high sensitivity.

Contact us : This email address is being protected from spambots. You need JavaScript enabled to view it.