A sensitive GC/MS method using cold fiber SPME to determine polycyclic aromatic hydrocarbons in spring water

Menezes, Helvécio Costa; Paiva, Maria José Nunes de; Santos, Rosimeire Resende dos; Sousa, Luciano P.; Resende, S.F.; Saturnino, Juliano A.; Paulo, Breno P.; Cardeal, Zenilda de Lourdes

doi:10.1016/j.microc.2013.03.010

Cited by 36 publications

(6 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Tea leaves are usually contaminated with PAHs because of the chemical treatment of the crops and postharvest manipulation, such as the drying process of the tea leaves through combustion gases from the burning wood, oil, and coal . Although PAHs exist in minute concentrations in the environment matrices and food and beverage samples, studies have shown that exposure to PAHs, even at minute concentration, could lead to cancer . The needs for reliable and accurate data on the occurrence of PAHs in the environmental matrices and food and beverages are in increasing trend.…”

Section: Introductionmentioning

confidence: 99%

Dispersive liquid–liquid microextraction combined with dispersive solid‐phase extraction for gas chromatography with mass spectrometry determination of polycyclic aromatic hydrocarbons in aqueous matrices

Hassan

Raoov

Sijam

et al. 2018

J of Separation Science

View full text Add to dashboard Cite

This study describes a dispersive liquid-liquid microextraction combined with dispersive solid-phase extraction method based on phenyl-functionalized magnetic sorbent for the preconcentration of polycyclic aromatic hydrocarbons from environmental water, sugarcane juice, and tea samples prior to gas chromatography with mass spectrometry analysis. Several important parameters affecting the extraction efficiency were investigated thoroughly, including the mass of sorbent, type and volume of extraction solvent, extraction time, type of desorption solvent, desorption time, type and amount of salt-induced demulsifier, and sample volume. Under the optimized extraction and gas chromatography-mass spectrometric conditions, the method revealed good linearity (10-100000 ng/L) with coefficient of determination (R ) of ≥0.9951, low limits of detection (3-16 ng/L), high enrichment factors (61-239), and satisfactory analyte recoveries (86.3-109.1%) with the relative standard deviations < 10% (n = 5). The entire sample preparation procedure was simple, rapid and can be accomplished within 10 min. This method was applied (after pretreatment) to 30 selected samples, and the presence of studied analytes was quantified in 17 samples.

show abstract

Section: Introductionmentioning

confidence: 99%

Dispersive liquid–liquid microextraction combined with dispersive solid‐phase extraction for gas chromatography with mass spectrometry determination of polycyclic aromatic hydrocarbons in aqueous matrices

Hassan

Raoov

Sijam

et al. 2018

J of Separation Science

View full text Add to dashboard Cite

show abstract

“…PAHs are ubiquitous compounds in the environment (Alves et al 2017;Segura et al 2017). They come from anthropogenic sources, such as fossil fuel combustion, metal smelting processes and food smoking, among other human activities; and can be found in the atmosphere, soil, water and even in living beings because of their bioaccumulative properties throughout the food chain (Chizhova et al 2013;Menezes et al 2013;Santos et al 2017).…”

Section: Introductionmentioning

confidence: 99%

Direct large-volume injection analysis of polycyclic aromatic hydrocarbons in water

2018

View full text Add to dashboard Cite

Due to the health risks for both humans and living beings caused by polycyclic aromatic hydrocarbons (PAHs), the monitoring of these compounds in environmental matrices is mandatory. This work proposes an analytical method for analyzing anthracene (AN) and benzo[a]pyrene (BaP), two of the most representative PAHs, at ultra-trace concentrations in water, employing direct injection of large volumes of samples coupled with reversed-phase high-performance liquid chromatography. For this purpose, principal component analysis was used to examine the behavior of AN and BaP within the chromatographic system. Results showed that AN and BaP chromatographic behavior can be described by three models representing their identification, the quantification of AN and that of BaP, respectively. The factors affecting the obtained models, such as the injection volume, column temperature, flow rate, strength of the mobile phase, and the excitation and emission wavelengths, were examined and optimized by means of design of experiments. Finally, the analytical method was validated, obtaining promising limits of detection and quantification. The developed analytical method was demonstrated to be useful for a sensitive analysis of the target analytes in relatively clean natural water matrices.

show abstract

“…On the other hand, due to the exothermic nature of the adsorption process, the heating can lower the partition coefficients of the analytes and hence attenuate the extraction from the headspace on M A N U S C R I P T A C C E P T E D ACCEPTED MANUSCRIPT 4 to the fiber [18][19][20]. This problem was solved as CF-SPME was introduced, wherein fiber, as the extracting phase, is held at a relatively low temperature while the sample is heated up to high temperatures.…”

Section: Introductionmentioning

confidence: 99%

Direct synthesis of nitrogen-doped graphene on platinum wire as a new fiber coating method for the solid-phase microextraction of BXes in water samples: Comparison of headspace and cold-fiber headspace modes

Memarian

Davarani

Nojavan

et al. 2016

Analytica Chimica Acta

View full text Add to dashboard Cite

A sensitive GC/MS method using cold fiber SPME to determine polycyclic aromatic hydrocarbons in spring water

Cited by 36 publications

References 30 publications

Dispersive liquid–liquid microextraction combined with dispersive solid‐phase extraction for gas chromatography with mass spectrometry determination of polycyclic aromatic hydrocarbons in aqueous matrices

Dispersive liquid–liquid microextraction combined with dispersive solid‐phase extraction for gas chromatography with mass spectrometry determination of polycyclic aromatic hydrocarbons in aqueous matrices

Direct large-volume injection analysis of polycyclic aromatic hydrocarbons in water

Direct synthesis of nitrogen-doped graphene on platinum wire as a new fiber coating method for the solid-phase microextraction of BXes in water samples: Comparison of headspace and cold-fiber headspace modes

Contact Info

Product

Resources

About