BTEX can be detected by GC-MS. The reason that BTEX can be detected by GC-MS is because these compounds are volatile. GC can not detect non-volatile compounds like very heavy hydrocarbons.

Procedure:

First, you should use a solvent like n-hexane to extract aliphatic and aromatic hydrocarbons from the water sample. Then you need to choose a right method to inject and then heat up the oven in order to analyze the hydrocarbons by GC-MS. In these papers, the methods have been explained in detail that will help you for the analysis of hydrocarbons by GC-MS:

Article Development of bioreactors for comparative study of natural ...

Article Characterization of pyrolysis products from fast pyrolysis o...

Article Study Potential of Indigenous Pseudomonas aeruginosa and Bac...

I appreciate you taking the time to answer my question(s). It has really clarify some problems I'm having regarding BTEX

Hello,

GC-MS can be successfully used to quantify BTEX. Regarding the quantitative technique for BTEX determination using GC-MS, I use the internal standard method. My internal standard is deuterated toluene (it has other characteristic ions than toluene).

Best regards

Monika

Amar,

For water/wastewater samples you need extraction/pre-concentration. Check my papers on BTEX and PAHs determination in wastewater samples by GC-MS.

regards,

GB

Hi.

There are many papers describing procedures for quantification of BTEX in water/wastewater samples. You can ease find them in scientific bases (ELSEVIER, WILEY, SPRINGER) or even in free base - googlescholar.com (e.g. written by G. Boczkaj's team). The most important is the choice of proper isolation and enrichment method (eg. LLE, DLLME, SPME, HS,...) because I suppose that the concentration of BTEX in Your samples is low.

Best regards.