Determination of Three Neonicotinoid Pesticides Residues by High Performence Liquid Chromatography with Molecularly Imprinting Solid Phase Extraction
10.3724/SP.J.1096.2014.40232
- VernacularTitle:分子印迹固相萃取-液相色谱联用法测定3种新烟碱类农药的残留
- Author:
Dongdong YANG
;
Lujing CONG
;
Mingming TIAN
;
Minghua WANG
- Publication Type:Journal Article
- Keywords:
Molecularly imprinted polymers;
Thiacloprid;
Imidacloprid;
Imidaclothiz;
Solid phase extraction;
High performence liquid chromatography
- From:
Chinese Journal of Analytical Chemistry
2014;(6):872-877
- CountryChina
- Language:Chinese
-
Abstract:
A molecularly imprinted polymer (MIP) for the selective solid phase extraction of imidacloprid, imidaclothiz, thiacloprid was synthesized by polymerization for 24 h using thiacloprid as template. Dynamic adsorption and selective adsorption test showed that the MIP could quickly adsorb the imidacloprid, imidaclothiz, thiacloprid, with good selectivity for targets. The maximum static adsorption capacity of MIP was 31. 7, 36. 7 and 45. 3 mg / g, respectively. A molecularly imprinted solid phase extraction (MIP-SPE) was developed to separate, clean up and enrich the thiacloprid, imidacloprid and imidaclothiz residue in paddy water, soil, rice, tomato, cucumber. The average recoveries were 80. 2% -98. 8% , with relative standard deviation of 1. 4% -4. 5% . The MIP-SPE was used to analyses the real samples, the result was satisfied.
