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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Peng, Guilong He, Qiang Mmereki, Daniel Zhou, Guangming Pan, Weiliang Gu, Li Fan, Leilei Tang, Xiaohui Chen, Junhua Mao, Yufeng |
| Description | Country affiliation: China Author Affiliation: Peng G ( Key Laboratory of Eco-Environment of Three Gorges Region of Ministry of Education, Chongqing University, Chongqing, China.); He Q ( Key Laboratory of Eco-Environment of Three Gorges Region of Ministry of Education, Chongqing University, Chongqing, China.); Mmereki D ( National Centre for International Research of Low Carbon and Green Buildings, Chongqing University, Chongqing, China.); Zhou G ( Key Laboratory on Luminescence and Real-Time Analysis (Southwest University), Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, China.); Pan W ( School of River and Ocean Engineering, Chongqing Jiaotong University, Chongqing, China.); Gu L ( Key Laboratory of Eco-Environment of Three Gorges Region of Ministry of Education, Chongqing University, Chongqing, China.); Fan L ( Key Laboratory of Eco-Environment of Three Gorges Region of Ministry of Education, Chongqing University, Chongqing, China.); Tang X ( Key Laboratory of Eco-Environment of Three Gorges Region of Ministry of Education, Chongqing University, Chongqing, China.); Chen J ( Key Laboratory on Luminescence and Real-Time Analysis (Southwest University), Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, China.); Mao Y ( Key Laboratory of Eco-Environment of Three Gorges Region of Ministry of Education, Chongqing University, Chongqing, China.) |
| Abstract | Vortex-assisted liquid-liquid microextraction followed by high-performance liquid chromatography with UV detection was applied to determine Isocarbophos, Parathion-methyl, Triazophos, Phoxim and Chlorpyrifos-methyl in water samples. 1-Bromobutane was used as the extraction solvent, which has a higher density than water and low toxicity. Centrifugation and disperser solvent were not required in this microextraction procedure. The optimum extraction conditions for 15 mL water sample were: pH of the sample solution, 5; volume of the extraction solvent, 80 µL; vortex time, 2 min; salt addition, 0.5 g. Under the optimum conditions, enrichment factors ranging from 196 to 237 and limits of detection below 0.38 µg/L were obtained for the determination of target pesticides in water. Good linearities (r > 0.9992) were obtained within the range of 1-500 µg/L for all the compounds. The relative standard deviations were in the range of 1.62-2.86% and the recoveries of spiked samples ranged from 89.80 to 104.20%. The whole proposed methodology is simple, rapid, sensitive and environmentally friendly for determining traces of organophosphorus pesticides in the water samples. |
| File Format | HTM / HTML |
| ISSN | 16159306 |
| Issue Number | 20 |
| Journal | Journal of Separation Science |
| Volume Number | 38 |
| e-ISSN | 16159314 |
| Language | English |
| Publisher | Wiley-VCH |
| Publisher Date | 2015-10-01 |
| Publisher Place | Germany |
| Access Restriction | One Nation One Subscription (ONOS) |
| Content Type | Text |
| Resource Type | Article |
| Subject | Analytical Chemistry Filtration and Separation |
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