Ultrasonic-assisted water extraction and solvent bar microextraction followed by gas chromatography-ion trap mass spectrometry for determination of chlorobenzenes in soil samples. 2012

Li Wang, and Linling Wang, and Jing Chen, and Wenjun Du, and Guoliang Fan, and Xiaohua Lu
Environmental Science Research Institute, Huazhong University of Science and Technology, Wuhan 430074, China.

A novel and simple analytical method for the determination of chlorobenzenes (CBs) in soil samples was developed using ultrasonic-assisted water extraction (UAWE) coupled with solvent bar microextraction (SBME). Four chlorobenzenes, 1,2,3-trichlorobenzene (1,2,3-TCB), 1,2,3,4-tetrachlorobenzene (1,2,3,4-TeCB), hexachlorobenzene (HCB), and 1-chloro-4-nitrobenzene (1-C-4-NB), were used as model compounds to investigate the extraction performance. Parameters affecting the extraction efficiency were investigated in detail. UAWE was used for the extraction of CBs from 1.0 g of sediment using 10 mL of ultrapure water at 100 W for 30 min at 30-35 °C. The extract was subsequently subjected to a single step SBME cleanup and enrichment procedure. Both ends of the solvent bar with about 4 μL of 1-octanol were sealed by a sealing machine, and it was placed in the soil slurry for extraction. After extraction, analysis was carried out by gas chromatography-ion trap mass spectrometry (GC-ITMS) detection. The relative recoveries from the spiked soil sample varied between 93 and 105% for CBs, and exceeded levels achieved for conventional Soxhlet extraction. The method linearities were 10-150, 40-600, and 100-1500 ng g(-1) for different CBs. The limits of detection (LODs) and the limits of quantification (LOQs) were in the range of 0.7-27.3 ng g(-1) and 2.2-90.9 ng g(-1), respectively. Good reproducibilities were obtained with relative standard deviation (RSD) values below 6.8%. The analytical potential of the method was demonstrated by applying the method to spiked soil sample.

UI MeSH Term Description Entries
D008401 Gas Chromatography-Mass Spectrometry A microanalytical technique combining mass spectrometry and gas chromatography for the qualitative as well as quantitative determinations of compounds. Chromatography, Gas-Liquid-Mass Spectrometry,Chromatography, Gas-Mass Spectrometry,GCMS,Spectrometry, Mass-Gas Chromatography,Spectrum Analysis, Mass-Gas Chromatography,Gas-Liquid Chromatography-Mass Spectrometry,Mass Spectrometry-Gas Chromatography,Chromatography, Gas Liquid Mass Spectrometry,Chromatography, Gas Mass Spectrometry,Chromatography, Mass Spectrometry-Gas,Chromatography-Mass Spectrometry, Gas,Chromatography-Mass Spectrometry, Gas-Liquid,Gas Chromatography Mass Spectrometry,Gas Liquid Chromatography Mass Spectrometry,Mass Spectrometry Gas Chromatography,Spectrometries, Mass-Gas Chromatography,Spectrometry, Gas Chromatography-Mass,Spectrometry, Gas-Liquid Chromatography-Mass,Spectrometry, Mass Gas Chromatography,Spectrometry-Gas Chromatography, Mass,Spectrum Analysis, Mass Gas Chromatography
D002722 Chlorobenzenes Aromatic organic compounds with the chemical formula C6H5Cln.
D012989 Soil Pollutants Substances which pollute the soil. Use for soil pollutants in general or for which there is no specific heading. Soil Pollutant,Pollutant, Soil,Pollutants, Soil
D012997 Solvents Liquids that dissolve other substances (solutes), generally solids, without any change in chemical composition, as, water containing sugar. (Grant & Hackh's Chemical Dictionary, 5th ed) Solvent
D014465 Ultrasonics A subfield of acoustics dealing in the radio frequency range higher than acoustic SOUND waves (approximately above 20 kilohertz). Ultrasonic radiation is used therapeutically (DIATHERMY and ULTRASONIC THERAPY) to generate HEAT and to selectively destroy tissues. It is also used in diagnostics, for example, ULTRASONOGRAPHY; ECHOENCEPHALOGRAPHY; and ECHOCARDIOGRAPHY, to visually display echoes received from irradiated tissues. Ultrasonic
D014867 Water A clear, odorless, tasteless liquid that is essential for most animal and plant life and is an excellent solvent for many substances. The chemical formula is hydrogen oxide (H2O). (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed) Hydrogen Oxide
D015203 Reproducibility of Results The statistical reproducibility of measurements (often in a clinical context), including the testing of instrumentation or techniques to obtain reproducible results. The concept includes reproducibility of physiological measurements, which may be used to develop rules to assess probability or prognosis, or response to a stimulus; reproducibility of occurrence of a condition; and reproducibility of experimental results. Reliability and Validity,Reliability of Result,Reproducibility Of Result,Reproducibility of Finding,Validity of Result,Validity of Results,Face Validity,Reliability (Epidemiology),Reliability of Results,Reproducibility of Findings,Test-Retest Reliability,Validity (Epidemiology),Finding Reproducibilities,Finding Reproducibility,Of Result, Reproducibility,Of Results, Reproducibility,Reliabilities, Test-Retest,Reliability, Test-Retest,Result Reliabilities,Result Reliability,Result Validities,Result Validity,Result, Reproducibility Of,Results, Reproducibility Of,Test Retest Reliability,Validity and Reliability,Validity, Face
D057230 Limit of Detection Concentration or quantity that is derived from the smallest measure that can be detected with reasonable certainty for a given analytical procedure. Limits of Detection,Detection Limit,Detection Limits

Related Publications

Li Wang, and Linling Wang, and Jing Chen, and Wenjun Du, and Guoliang Fan, and Xiaohua Lu
December 2013, Journal of chromatography. A,
Li Wang, and Linling Wang, and Jing Chen, and Wenjun Du, and Guoliang Fan, and Xiaohua Lu
April 2012, Journal of chromatography. A,
Li Wang, and Linling Wang, and Jing Chen, and Wenjun Du, and Guoliang Fan, and Xiaohua Lu
January 2003, Journal of chromatography. A,
Li Wang, and Linling Wang, and Jing Chen, and Wenjun Du, and Guoliang Fan, and Xiaohua Lu
November 2010, Journal of chromatography. A,
Li Wang, and Linling Wang, and Jing Chen, and Wenjun Du, and Guoliang Fan, and Xiaohua Lu
August 2004, Journal of chromatography. A,
Li Wang, and Linling Wang, and Jing Chen, and Wenjun Du, and Guoliang Fan, and Xiaohua Lu
August 2012, Journal of chromatography. A,
Li Wang, and Linling Wang, and Jing Chen, and Wenjun Du, and Guoliang Fan, and Xiaohua Lu
December 2006, Talanta,
Li Wang, and Linling Wang, and Jing Chen, and Wenjun Du, and Guoliang Fan, and Xiaohua Lu
August 2012, Journal of chromatography. A,
Li Wang, and Linling Wang, and Jing Chen, and Wenjun Du, and Guoliang Fan, and Xiaohua Lu
August 1997, Journal of chromatography. A,
Copied contents to your clipboard!