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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Zhou, Qingxiang Lei, Man Li, Jing Wang, Mengyun Zhao, Danchen Xing, An Zhao, Kuifu |
| Description | Country affiliation: China Author Affiliation: Zhou Q ( Beijing Key Laboratory of Oil and Gas Pollution Control, College of Geosciences, China University of Petroleum Beijing, Beijing, China.); Lei M ( Beijing Key Laboratory of Oil and Gas Pollution Control, College of Geosciences, China University of Petroleum Beijing, Beijing, China.); Li J ( Beijing Key Laboratory of Oil and Gas Pollution Control, College of Geosciences, China University of Petroleum Beijing, Beijing, China.); Wang M ( Beijing Key Laboratory of Oil and Gas Pollution Control, College of Geosciences, China University of Petroleum Beijing, Beijing, China.); Zhao D ( Beijing Key Laboratory of Oil and Gas Pollution Control, College of Geosciences, China University of Petroleum Beijing, Beijing, China.); Xing A ( Beijing Key Laboratory of Oil and Gas Pollution Control, College of Geosciences, China University of Petroleum Beijing, Beijing, China.); Zhao K ( Beijing Key Laboratory of Oil and Gas Pollution Control, College of Geosciences, China University of Petroleum Beijing, Beijing, China.) |
| Abstract | Selenium is an important element for human health, and it is present in many natural drinks and foods. Present study described a new method using dispersive liquid-liquid microextraction prior to high-performance liquid chromatography with a UV variable wavelength detector for the determination of the total selenium, Se(IV), Se(VI), and total organoselenium in tea samples. In the procedure, 2,3-diaminonaphthalene was used as the chelating reagent, 400 µL acetonitrile was used as the disperser solvent and 60 µL chlorobenzene was used as the extraction solvent. The complex of Se(IV) and 2,3-diaminonaphthalene in the final extracted phase was analyzed by high-performance liquid chromatography. The factors influencing the derivatization and microextraction were investigated. Under the optimal conditions, the limit of detection was 0.11 µg/L for Se(IV) and the linearity range was in the range of 0.5-40 µg/L. This method was successfully applied to the determination of selenium in four tea samples with spiked recoveries ranging from 91.3 to 100%. |
| File Format | HTM / HTML |
| ISSN | 16159306 |
| Issue Number | 9 |
| Volume Number | 38 |
| e-ISSN | 16159314 |
| Journal | Journal of Separation Science |
| Language | English |
| Publisher | Wiley-VCH |
| Publisher Date | 2015-05-01 |
| Publisher Place | Germany |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Analytical Discipline Chemistry 2-naphthylamine Analogs & Derivatives Liquid Phase Microextraction Organoselenium Compounds Analysis Selenium Tea Chemistry Chelating Agents Chromatography, High Pressure Liquid Journal Article Research Support, Non-u.s. Gov't |
| Content Type | Text |
| Resource Type | Article |
| Subject | Analytical Chemistry Filtration and Separation |
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