Comparison of pressurized fluid extraction, Soxhlet extraction and sonication for the determination of polycyclic aromatic hydrocarbons in urban air and diesel exhaust particulate matter

2006 ◽  
Vol 8 (4) ◽  
pp. 488 ◽  
Author(s):  
M. Ryn? ◽  
L. Rantanen ◽  
E. Papaioannou ◽  
A. G. Konstandopoulos ◽  
T. Koskentalo ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Diesel Exhaust ◽  
Soxhlet Extraction ◽  
Urban Air ◽  
Diesel Exhaust Particulate ◽  
Polycyclic Aromatic ◽  
Pressurized Fluid Extraction ◽  
Exhaust Particulate

scholarly journals Determination of the Levels of Polycyclic Aromatic Hydrocarbons in Toasted Bread Using Gas Chromatography Mass Spectrometry

2010 ◽  
Vol 2010 ◽  
pp. 1-8 ◽  
Author(s):  
Amal Al-Rashdan ◽  
Murad I. H. Helaleh ◽  
A. Nisar ◽  
A. Ibtisam ◽  
Zainab Al-Ballam
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Wheat Flour ◽  
Aromatic Hydrocarbons ◽  
Soxhlet Extraction ◽  
Gas Chromatography Mass Spectrometry ◽  
White Wheat ◽  
Relative Standard ◽  
Polycyclic Aromatic ◽  
Repeatability And Reproducibility

Concentration of 16 polycyclic aromatic hydrocarbons (PAHs) in eighteen baked bread samples using gas oven toasting were evaluated in this study. Samples were classified into the following categories: (1) bread baked from white wheat flour, (2) bread baked from brown wheat flour, and (3) sandwich bread baked from white wheat flour. Analysis was performed by GC-MS after Soxhlet extraction of the sample and clean up of the extract. The levels of B[a]P was not detected in ten of eighteen samples. In the rest of the samples, B[a]P are varied from 2.83 to 16.54 g/kg. B[a]A, CHR, B[b]FA, B[k] FA, IP, DB[a,h]A, and B[ghi]P concentrations were found to be less than 10.0 g/kg. However, B[a]P are not detected in original white and brown wheat flour. The total PAHs were varied in the range 1.06–44.24 g/kg and 3.08–278.66 g/kg for H-PAH and L-PAH, respectively. Reproducibility and repeatability of the proposed method was calculated and presented in terms of recovery and relative standard deviations (RSD, %). Recoveries were varied from 72.46% to 99.06% with RSD ± 0.28–15.01% and from 82.39% to 95.01% with RSD ±1.91–13.01% for repeatability and reproducibility, respectively. Different commercialized samples of toasted bread were collected and analyzed.

Distribution and Source of Polycyclic Aromatic Hydrocarbons ( PAHs) in Soils of XinLuo District, Longyan City

2011 ◽  
Vol 71-78 ◽  
pp. 2907-2911
Author(s):  
Ru Ping Zhang ◽  
Xia Hong Zhang ◽  
Li Fang He
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Analytical Method ◽  
Soxhlet Extraction ◽  
Industrial Area ◽  
Constant Energy ◽  
Synchronous Fluorescence Spectrometry ◽  
Ultrasonic Assisted ◽  
Polycyclic Aromatic

The analytical method for the determination of trace polycyclic aromatic hydrocarbons (PAHs) in environmental soil by ultrasonic assisted soxhlet extraction coupled with constant energy synchronous fluorescence spectrometry was described.The results indicated that were taken in Longyan City XinLuo District of soil containing 9 components: Benzo(k)fluorathene, Anthracene, Fluorathene, 1,12-benzoperylene, 2,3-benzanthracene, 1,2,5,6-dibenzo-anthracene, Fluorene, 2,3-Benzofluorene, Coronene and that the concentrations of PA Hs are in the range of 9.344~372.986 ng.g-1. Industrial area around the PAHs were relatively higher in concentration in the soil, non-industrial area around the PAHs increased with the increase of human activity increased.

scholarly journals Determination of Polycyclic Aromatic Hydrocarbons in Agricultural Products

2021 ◽  
Vol 16 (3) ◽  
pp. 127-136
Author(s):  
К.К. Tsymbaliuk ◽  
O.V. Snurnikova ◽  
K.V. Melnyk ◽  
E.M. Fadeev ◽  
V.P. Antonovich
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Matrix Effects ◽  
Soxhlet Extraction ◽  
Agricultural Products ◽  
Gas Chromatography Mass Spectrometry ◽  
Polycyclic Aromatic ◽  
Optimized Conditions ◽  
Gas Chromatographic Separation

The procedure for the determination of polycyclic aromatic hydrocarbons (PAH) in agricultural products on the example of five crops (rapeseed, sunflower, flax, corn, soybeans) by gas chromatography mass spectrometry (GC-MS) was developed. It was showed the advantage of using binary mixtures of organic solvents "hexanedichloromethane" for PAH extraction. The time of Soxhlet extraction is from 6 to 8 hours at optimized conditions. The fractionation and purification of extracts by column chromatography on deactivated alumina was optimized. The article presents the optimization of sample injection in the programmed temperature vaporization (PTV) mode, parameters of gas chromatographic separation and mass spectrometric detection in determining 16 priority PAH in agricultural products. The recoveries, correctness and accuracy of the proposed method were checked by “spikes” with concentrations 0.5, 1.0, 2.5, 5.0 μg kg-1. The linearity of the method was determined by calibration curves obtained for three measurements of calibration solutions with concentrations of 0.5-100 ng mL-1. The effectiveness of the proposed combination of sample preparation and analysis by PTV-GC-MS was studied for linearity, accuracy, matrix effects and reproducibility. The method was validated by linearity, accuracy, matrix effect and reproducibility.

scholarly journals Determination of Dissolved Concentrations of Polycyclic Aromatic Hydrocarbons in River

2015 ◽  
Vol 48 ◽  
pp. 67-80
Author(s):  
Muhammad Nuraddeen Bui
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Silicone Rubber ◽  
Extraction Method ◽  
Soxhlet Extraction ◽  
Water Systems ◽  
Passive Samplers ◽  
Reference Compound ◽  
Polycyclic Aromatic

This study shows the sensitivity of using silicone rubber passive sampler(SR-PS) andgas chromatography with mass spectrometer (GC-MS) detection for monitoring and identification of polycyclic aromatic hydrocarbons in surface water systems. The analysis was performed for eighteen PAHs compounds after pre-concentration using Soxhlet extraction method. By comparison, a total of 13 PAHs were detected in the spot water samples, of which none was quantifiable. The freely dissolved PAH concentrations were found to range from 0.17 ng/L to 0.76 ng/L at Ugieriver. The use of fluorine d10 as Performance reference compound(PRC) gives a sampling rates of 8.14 (L/day) for silicone rubber passive samplers. Analysis of PAHs concentrations suggest the contaminants are mainly from pyrolytic sources. Overall it can be concluded that SR-PS are viable alternatives in the environmental monitoring of PAHs.

Sign in / Sign up

Export Citation Format

Share Document