Abstract
A novel kind of water-compatible magnetic imprinted cyromazine microsphere (WCMM) was synthesized by water/oil/water suspension polymerization. The obtained WCMM was homogenously spherical with porous morphology and strong magnetic properties. The microspheres were successfully used as adsorbent in dispersive solid-phase extraction (WCMM-dSPE) to selectively extract cyanazine and atrazine from environmental water. Good linearity of the two analytes was observed in the range from 2.5 to 200.0ngmL-1. The average recoveries at three spiking levels ranged from 84.8% to 104.3% with relative standard deviations (RSD) less than 6.9%. Compared with magnetic non-imprinted particles (WCMN), the proposed WCMM adsorbent of dSPE efficiently improved the efficiency of extracting cyanazine and atrazine from environmental water samples and eliminated the effect of cyromazine leakage on the quantitative analysis of cyanazine and atrazine. The proposed WCMM-dSPE method combined the advantages of magnetic separation, molecular imprinted microspheres and dSPE.
| Original language | English |
|---|---|
| Pages (from-to) | 84-89 |
| Number of pages | 6 |
| Journal | Journal of Chromatography B: Analytical Technologies in the Biomedical and Life Sciences |
| Volume | 957 |
| DOIs | |
| State | Published - 15 Apr 2014 |
Bibliographical note
Funding Information:The project was sponsored by the Natural Science Foundation of Hebei Province ( B2011104002 , B2012201052 ) and National Natural Science Foundation of China ( 31301464 ).
Keywords
- Atrazine
- Cyanazine
- Cyromazine
- Dispersive solid-phase extraction
- Magnetic molecularly imprinted microspheres