Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1166789 | Analytica Chimica Acta | 2010 | 6 Pages |
Abstract
The enrichment of polycyclic aromatic hydrocarbons (PAHs) in water samples with magnesium oxide (MgO) microspheres was evaluated, and four 3-5-ring PAHs were used as probes to validate the adsorption capacity of the material. Factors affecting the recovery of PAHs were investigated in detail, including the type and concentration of organic modifiers, elution solvents, particle size of the adsorbent, volume and flow rate of the samples, and the lifetime of MgO cartridges. The recoveries of four PAHs extracted from 20 mL of seawater spiked with standard PAHs ranged from 85.8% to 102.0% under the optimised conditions. The limits of detection varied from 1.83 ng Lâ1 to 16.03 ng Lâ1, indicating that the analytical method was highly sensitive. Additionally, the proposed method was successfully used to enrich PAHs in seawater. Compared to conventional methods, the proposed method consumed less organic modifier (5% acetone), and cheaper sorbents with comparable extraction efficiency were employed.
Keywords
RSDpreconcentration factorPYRBAPACNSPEDCMLOQWaterSolid-phase extractionAcetonitrilerelative standard deviationMagnesium oxideAnthraceneBenzo[a]pyreneLOD یا Limit of detectionAnthDichloromethaneEnrichmentPhenMethanolLimits of quantificationlimits of detectionMgOMeOHPolycyclic aromatic hydrocarbonsPAHsPhenanthrenePyrenehigh-performance liquid chromatographyHPLC
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Jing Jin, Zhiping Zhang, Yun Li, Peipei Qi, Xianbo Lu, Jincheng Wang, Jiping Chen, Fan Su,