Headspace single-drop microextraction coupled with gas chromatography-mass spectrometry for the determination of benzene, toluene, ethylbenzene and o-xylene in water samples

Name: Rungaroon Pimparu

Organization : Phranakhon Si Ayutthaya Rajabhat University. Faculty of Science and Technology

Email : prungaroon@aru.ac.th

Name: Peeyanun Noyrod

Organization : Huachiew Chalermprakiet University. Faculty of Science and Technology

LCSH: Sewage -- Purification -- Experimentation

LCSH: Mass spectrometry

LCSH: Extraction (Chemistry)

LCSH: Ion mobility spectroscopy

Abstract: Headspace single-drop microextraction (HS-SDME) was demonstrated as a sample preparation technique for the isolation of benzene, toluene, ethylbenzene, and o-xylene (BTEX) from water samples. The target analytes were extracted from the aqueous sample into the microdrop of organic solvent which was suspended to the tip of a GC syringe and held above the aqueous sample. After extraction, the organic solvent was withdrawn into the syringe and subsequently analyzed by gas chromatography-mass spectrometry (GC-MS). The HS-SDME parameters affecting on the extraction efficiency such as type of extraction solvent, volume of microdrop, extraction time, stirring rate and salt addition were investigated and optimized. Under the optimum conditions of the HS-SDME-GC-MS, limits of detection of 0.10-0.19 μg L-1, limits of quantification of 0.33-0.60 μg L-1, and linearity range of 0.50-50 μg L-1 with coefficient of determination between 0.9965 and 0.9987 were obtained. This proposed method was successfully applied for the determination of BTEX in water samples with recoveries in the range of 90-96 % and relative standard deviations less than 7.5 %

King Mongkut's University of Technology North Bangkok. Central Library

Address: BANGKOK

Email: library@kmutnb.ac.th

Created: 2022

Modified: 2022-11-09

Issued: 2022-11-09

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BibliograpyCitation : In King Mongkut's Institute of Technology Ladkrabang. Pure and Applied Chemistry International Conference (PACCON 2022) (pp.101-105). Bangkok : King Mongkut's Institute of Technology Ladkrabang

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