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N-Doped Mesoporous Carbon As a New Sorbent for Ultrasonic-Assisted Dispersive Micro-Solid-Phase Extraction of 1-Naphthol and 2-Naphthol, the Biomarkers of Exposure to Naphthalene, From Urine Samples Publisher Pubmed



Omidi F1 ; Dehghani F2 ; Jamaleddin Shahtaheri S3, 4
Authors
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Authors Affiliations
  1. 1. Research Center for Environmental Determinants of Health (RCEDH), Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
  2. 2. Department of Occupational Health Engineering, School of Public Health, Shiraz University of Medical Sciences, Shiraz, Iran
  3. 3. Department of Occupational Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
  4. 4. Institute for Environmental Research, Tehran University of Medical Sciences, Tehran, Iran

Source: Journal of Chromatography B: Analytical Technologies in the Biomedical and Life Sciences Published:2020


Abstract

This study aimed to optimize a new sample preparation method using N-doped mesoporous carbon sorbent for simultaneous measurement of 1-naphthol and 2-naphthol, the biomarkers of exposure to naphthalene. The samples were analyzed using high-performance liquid chromatography supplied with ultraviolet detector (HPLC-UV). N-doped mesoporous carbon sorbent was obtained via the hard template procedure. The synthesized nanosorbent was then characterized by transmission electron microscopy (TEM), Brunauer-Emmett-Teller (BET), and elemental analysis (CHN). The effective factors in the extraction of the studied biomarkers were examined by the Box-Behnken (BBD) methodology. Regarding the optimum conditions, the sketched calibration curve for naphthols was linear in the concentration levels of 1–600 µg L-1 for human urine samples. The accuracy and reproducibility of the introduced method were determined using the relative recovery (RR %) and relative standard deviation (RSD %) tests on the fortified urine samples. RR% and RSD% were found to be 97.0–101.2% and 3.1–9.0%, respectively. The calculated method detection limit of the optimized procedure was 0.3 µg L-1 and 0.5 µg L-1 for 1-naphthol and 2-naphthol, respectively. © 2020 Elsevier B.V.