Simultaneous determination of methyl tert-butyl ether, its degradation products and other gasoline additives in soil samples by closed-system purge-and-trap gas chromatography–mass spectrometry

Rosell, Mònica; Lacorte, Sı́lvia; Barceló, Damià

doi:10.1016/j.chroma.2006.07.060

Cited by 42 publications

(15 citation statements)

References 38 publications

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“…Soil samples were placed in 250mL glass jars with screw tops and Teflon liners to minimize losses. These jars were placed in a refrigerator at 4°C overnight prior to sampling by removal of the top 5cm [14]. Gravel, twigs or other material was removed from the jars.…”

Section: Preparation Of Samples For Tphmentioning

confidence: 99%

Petroleum Hydrocarbon Contents in Tropical Soils near Crude Oil Exploration and Processing Site in Niger Delta, Nigeria

Dennis¹

2019

ESCR

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Petroleum Hydrocarbon contents in tropical soilshas been increasingly recognized as an important soil degradation factor in crude oil producing areas. Hydrocarbon can impact and contaminate the soil apart from playing nutrient inhibition role in the soil. The application of an effective and sensitive analytical method to determine soil contaminants is a crucial step in monitoring and remediation processes. In the present work, we optimized the analysis of Volatile Organic Compounds (VOC) commonly present in fuel: Quantitation of fluorobenzene and monoaromatic hydrocarbons such as Benzene, Toluene, Ethylbenzene and Xylene (BTEX). At impacted locations of Well-Head (WH), Group Gathering Facility (GGF), Group Processing Facility (GPF) and non-impacted sites served as the control. Headspace (HS) and Headspace-Solid Phase Microextraction (HS-SPME) were optimized in water samples, and validated for contaminated soils, using spiked soils. Contaminants were identified and quantified by Gas Chromatography coupled to Mass Spectrometry (GC/MS). Average BTEX (2.50mgkg -1 ) and TPH (4.0mgkg -1 ) were significantly higher in GGF and the concentration was below detection limit in GPF. Examination of regression lines of BTEX and TPH to internal standard on concentration using a least-squares fit demonstrated a linear relationship with correlation coefficients was consistently greater than 0.999 at the impacted sites.

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Section: Preparation Of Samples For Tphmentioning

confidence: 99%

Petroleum Hydrocarbon Contents in Tropical Soils near Crude Oil Exploration and Processing Site in Niger Delta, Nigeria

Dennis¹

2019

ESCR

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“…Furthermore, they act as anti-knocking agents, substituting for the formally used lead compounds and reducing toxic air emissions. Due to the importance of these liquids, there are numerous articles that report thermophysical properties at various temperatures of mixtures containing linear ethers like diisopropylether and methyl tert-butyl ether and alkanes with the aim to reproduce the effect of the additives and the hydrocarbons, respectively, in gasoline I. Bandrés · C. Lahuerta · A. Villares · S. Martín · C. Lafuente (B) Departamento de Química Orgánica -Química Física, Facultad de Ciencias, Ciudad Universitaria, 50009 Zaragoza, Spain e-mail: celadi@unizar.es [5][6][7][8][9][10][11]. We have found some previous references of viscosities of the studied binary mixtures at several temperatures [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Kinematic Viscosities for Ether + Alkane Mixtures: Experimental Results and UNIFAC-VISCO Parameters

et al. 2008

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“…Several sample preparation techniques are used for BTEX determination in soil, including purgeand-trap [3,4], headspace sampling [5][6][7], and solid-phase microextraction (SPME) [8][9][10][11]. SPME is a simple, fast, solventless method of sample preparation for VOCs in soil analysis, which is capable of full automation and on-site application [12].…”

Section: Introductionmentioning

confidence: 99%

Quantification of BTEX in Soil by Headspace SPME–GC–MS Using Combined Standard Addition and Internal Standard Calibration

et al. 2017

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There is a great demand for simple, fast and accurate methods for quantification of volatile organic contaminants in soil samples. Solid-phase microextraction (SPME) has a huge potential for this purpose, but its application is limited by insufficient accuracy caused by a matrix effect. The aim of this research was to develop the method for BTEX quantification in soil using combined standard addition (SA) and internal standard (IS) calibration. Deuterated benzene (benzene-d6) was used as the internal standard for all analytes. The optimized method includes spiking replicate samples with different concentrations of BTEX standards and the same concentration of benzene-d6, equilibration of soil samples at 40 °C during 2 h, and SPME-GC-MS analysis. Precision and accuracy of IS and SA methods were compared on different soil matrices. Combined SA + IS method provided more precise calibration plots compared to the conventional SA calibration. The SA + IS calibration provided more precise and accurate results compared with a reference method based on solvent extraction followed by GC-MS when applied to BTEX quantification in real soil samples (spiked with diesel fuel and aged). Recoveries of BTEX from soil samples spiked with known concentrations of analytes using the developed method were in the range of 73-130% with RSD values less than 15% for all BTEX. The proposed simultaneous standard addition and internal standard approach can be advantageous and adopted for improved quantification of other toxic VOCs in soil.

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Simultaneous determination of methyl tert-butyl ether, its degradation products and other gasoline additives in soil samples by closed-system purge-and-trap gas chromatography–mass spectrometry

Cited by 42 publications

References 38 publications

Petroleum Hydrocarbon Contents in Tropical Soils near Crude Oil Exploration and Processing Site in Niger Delta, Nigeria

Petroleum Hydrocarbon Contents in Tropical Soils near Crude Oil Exploration and Processing Site in Niger Delta, Nigeria

Kinematic Viscosities for Ether + Alkane Mixtures: Experimental Results and UNIFAC-VISCO Parameters

Quantification of BTEX in Soil by Headspace SPME–GC–MS Using Combined Standard Addition and Internal Standard Calibration

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