Performance of metal-organic framework as an excellent sorbent for highly efficient and sensitive trace determination of anthracene in water and food samples
| Autor: | Maryam Ghalibafan, Alireza Farrokhi, Rouhollah Khani |
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| Rok vydání: | 2019 |
| Předmět: |
Sorbent
Correlation coefficient Health Toxicology and Mutagenesis Polycyclic aromatic hydrocarbon 010501 environmental sciences 01 natural sciences chemistry.chemical_compound Tap water Limit of Detection Environmental Chemistry Polycyclic Aromatic Hydrocarbons Metal-Organic Frameworks 0105 earth and related environmental sciences chemistry.chemical_classification Detection limit Anthracenes Anthracene Chromatography Extraction (chemistry) Solid Phase Extraction Water General Medicine Pollution chemistry Metal-organic framework Water Pollutants Chemical |
| Zdroj: | Environmental science and pollution research international. 27(21) |
| ISSN: | 1614-7499 |
| Popis: | Polycyclic aromatic hydrocarbons are a class of highly toxic and unremitting organic pollutants that are widely distributed in the natural environment. In this work, a metal-organic framework (MOF) designated as HKUST-1 [Cu3(BTC)2] was synthesized, characterized, and applied as a solid-phase extraction sorbent for the determination of a trace polycyclic aromatic hydrocarbon, anthracene (Ant) as model compound, in various real samples by spectrofluorimetry. The synthesized MOF exhibited large surface areas and high extraction ability, making it excellent candidate as sorbent for enrichment of trace anthracene. The effects of influential parameters on the performance of the dispersive micro-solid-phase extraction (Dμ-SPE) process, such as the initial anthracene concentration, pH, sorbent dosage, and shaking time, were investigated and optimized by the experiment design method. Under the optimized experimental conditions, good linearity in the range of 3–85 ng mL−1 with correlation coefficient 0.997 and good sensitivity with low detection limit 0.5 ng mL−1 for Ant was achieved. The method has been validated in the analysis of real tap water, soft drink, and vegetable juice samples with recoveries in the range of 86.33–103.00% and relative standard deviations in the range of 1.94–3.77%. The as-prepared HKUST-1 was used for at least four times without any obvious decline of extraction capability. The results of this study show the great potential of MOFs as sorbents in Dμ-SPE procedures for the separation and determination of trace Ant in complicated matrices. |
| Databáze: | OpenAIRE |
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