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- W4319840271 abstract "The main goal of this study is the hierarchical synthesis nanostructure CoNi2S4 on the graphenized pencil lead (GPL) and application as solid phase microextraction (SPME) fiber for determination of environmental pollutants. The synthesized nanostructure fiber was investigated by scanning electron microscope, energy dispersive X-ray, X-ray diffraction, Fourier transforms infrared spectroscopy and thermogravimetric analysis. The efficiency of the modified fiber as a new extraction phase for SPME was evaluated by the determination of polyaromatic hydrocarbons (PAHs) from river water samples. The extracted PAHs were monitored by GC-FID. The affecting parameters on the extraction process such as pH, temperature, salinity, stirring speed, and extraction time were investigated. The analytical parameters for determination of PAHs by CoNi2S4/GPL fiber were studied. Under the optimized conditions, the linearity range of calibration curve was obtained from 0.0001 to 10 µg L−1. The range of correlation coefficients (R2) and limits of detections were resulted from 0.998 to 0.987 and 0.0001 to 0.003 µg L−1, respectively. The proposed fiber was successfully used to evaluate PAHs in spiked river samples and RSD % values were obtained in the range of 3.8 − 9.3%." @default.
- W4319840271 created "2023-02-11" @default.
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- W4319840271 date "2023-01-11" @default.
- W4319840271 modified "2023-09-27" @default.
- W4319840271 title "Modified Graphenized Pencil Lead by CoNi<sub>2</sub>S<sub>4</sub> Nanostructure as a SPME Fiber for Analysis of PAHs from Water Samples" @default.
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- W4319840271 doi "https://doi.org/10.1080/10406638.2022.2157451" @default.
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