An Improved Gas Chromatographic Method for the Determination of C6–C12 Petroleum Hydrocarbons in Soil Water |
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| Authors: | Maryna Voyevoda Wolfgang Geyer Sibylle Mothes |
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| Institution: | UFZ, Helmholtz Centre for Environmental Research – UFZ, Dept. Analytical Chemistry, Leipzig, Germany. |
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| Abstract: | In this work, investigations dealing with the determination of hydrocarbons in contaminated soil water are presented. The hydrocarbons under investigation range from low to high volatility compounds. A GC‐FID method was developed that due to its efficiency, routine suitability, relative rapidity, and low cost is suitable for the analysis of complex chemical mixtures of highly volatile hydrocarbons (with boiling points between 69 and 190°C). The standard used was a gasoline mixture with boiling points ranging from 100 to 190°C. For this standard, no supplementary preparation is needed and it is suitable for the whole range of hydrocarbons under investigation. The determination of the hydrocarbon content of the samples was performed applying univariate and multivariate statistical analysis to the experimental data. In the characterization of a contamination with highly volatile hydrocarbons of soil water originating from different depth layers from the chemistry location Leuna (Sachsen‐Anhalt, Germany), the advantages of a multivariate method are demonstrated in exemplary manner. |
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| Keywords: | Volatile organic carbohydrate (VOC) Soil contamination Gas chromatography Chemometric Partial least squares (PLS) Modeling |
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