| Autor: |
Dayu YANG, Deyi ZHAO, Rui HUANG, Ting ZOU, Xinxian DAI, Si LI, Zhiming YAN |
| Jazyk: |
čínština |
| Rok vydání: |
2023 |
| Předmět: |
|
| Zdroj: |
Shipin gongye ke-ji, Vol 44, Iss 1, Pp 292-298 (2023) |
| Druh dokumentu: |
article |
| ISSN: |
1002-0306 |
| DOI: |
10.13386/j.issn1002-0306.2022030137 |
| Popis: |
Objective: Establishing a simple and convenient method for the analysis of inorganic arsenic in mineral water and tea beverages. Methods: Amino-functioned polyacrylonitrile nanofibers (NH2-PAN nanofibers) was fabricated and used as adsorbent for pipette-tip solid-phase extraction (PT-SPE) of inorganic arsenic in mineral water and tea beverages followed by hydride generation-atomic fluorescence spectrometry (HG-AFS) analysis. Results: The optimal extraction conditions of pipette-tip solid phase extraction were that the pH of the sample solution was 8, the adsorbent was 12 mg NH2-PAN nanofibers, and the elution solution was 5 mL HCl with a concentration of 0.01 mol/L. Under the optimum conditions, the established method showed good linearity in the range of 0.0235~60 μg/L with correlation coefficient greater than 0.994 and a precision of less than 6%. The spiked recoveries of inorganic arsenic were above 85% for both mineral water and tea beverages at two levels of spiked concentrations. Conclusion: The established NH2-PAN nanofibers based PT-SPE/HG-AFS method is simple, accurate and expected to provide a prospective solution for the detection of inorganic arsenic. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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