Extraction of toluene and methyl ethyl ketone from aquatic samples with NTD technique and nano sorb

Abstract

Background and aims: Nowadays, various techniques have been introduced for extraction of chemical compounds from aquatic samples, for examples techniques based on the use of needles that were packed with some sorbents. However, no synthesis sorbent study based on single-walled carbon nanotubes (SWCNT) and sol-gel techniques for the extraction of toluene and methyl ethyl ketone from aquatic samples has been performed so far. This study was aimed to use that technique. Methods: In this study, needles that were packed with single wall carbon nanotubes sorbent used for extraction of toluene and methyl ethyl ketone from aquatic samples and optimal extraction conditions (time - Temperature extraction and the effect of salt) were studied. Samples collected were analyzed with gas chromatograph-flame ionization detector. Results: The best conditions for the extraction of toluene were at 50C, 60 min, while for methyl ethyl ketone 50C, 30 minutes. Reproducibility of extractions for toluene and methyl ethyl ketone was 9 and 14, respectively. Conclusion: Results showed that needle trap device (NTD) technique has good performance in toluene and methyl ethyl ketone extraction with low concentrations in aquatic media. NTD with SWCNT is sensitive, simple, uses less solvent and is inexpensive. Equipment used in this technique is easy to carry out in the workplace.