alexa Chemometrics Optimization of Volatile Organic Compounds
ISSN: 2157-7587

Hydrology: Current Research
Open Access

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Research Article

Chemometrics Optimization of Volatile Organic Compounds Analysis in Water by Static Headspace Gas Chromatography Mass Spectrometry

Mohammad Hossein Fatemi*, Hossein Kouchakpour and Hanieh Malekzadeh
Laboratory of Chemometrics, Faculty of Chemistry, University of Mazandaran, Babolsar, Iran
Corresponding Author : Mohammad Hossein Fatemi
Faculty of Chemistry, Laboratory of Chemometrics
University of Mazandaran, Babolsar, Iran
Tel: ++981125242931
Fax: ++9811125342350
E-mail: [email protected]
Received April 10, 2013; Accepted July 11, 2013; Published July 16, 2013
Citation: Fatemi MH, Kouchakpour H, Malekzadeh H (2013) Chemometrics Optimization of Volatile Organic Compounds Analysis in Water by Static Headspace Gas Chromatography Mass Spectrometry. Hydrol Current Res 4:153. doi: 10.4172/2157-7587.1000153
Copyright: © 2013 Fatemi MH, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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Abstract

Static headspace coupled with gas chromatography-mass spectrometry was applied to extraction and analysis of volatile organic compounds in water samples. The effects of various factors affecting on the extraction efficiency including: the extraction temperature, extraction time, salt concentration and stirring speed were carried out by means of a 24 full factorial design. It was found that the effects of extraction temperature and salt concentration were signi?cant. Then, a central composite design was performed to optimize the level of these factors. The optimal headspace conditions were achieved when the vials were heated under 88°C and 29% w/w addition of salt. At optimum operating conditions, analytical figures of merit of method such as linearity (0.9962-0.9996), repeatability (1.2-12.13%), detection limits (0.1-4.9 μg.L−1) and linearity dynamic range (10-1000 μg.L−1) were determined. The proposed methods can be used to direct investigation of the presence of Volatile organic compounds in environmental
samples without pre-treatment of samples. Finally the optimized method was used to investigate the existence of volatile organic compounds in Babolroud River in the north of Iran.

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