Journal
ANALYTICAL LETTERS
Volume 43, Issue 5, Pages 757-767Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/00032710903486286
Keywords
Ampicillin; Molecularly imprinted polymer microspheres; Solid-phase extraction
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Funding
- National 863'' High-Tech Project [2006AA10Z438]
- Ministry of Science & Technology of China [2006BAK02A09]
- Shanghai Commission of Science and Technology [0652nm017, 07dz19508]
- Shanghai Leading Academic Discipline Project [B205]
- Zhejiang Provincial Education Department [Y200803423]
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The ampicillin (AMPI) molecularly imprinted polymer microspheres (MIPMs) via aqueous suspension polymerization were synthesized for the first time. Evaluation on the MIPMs by chromatographic analysis indicated that the optimum type and ratio of functional monomer to the template was 2-(Diethylamino) ethyl methacrylate (DEAEM) and 8: 1, respectively. Under the optimized MISPE conditions, the recoveries were all above 89% for spiked AMPI in honey samples. After MISPE treatment, the obtained AMPI chromatograms showed that the matrix interferences could be almost neglected. The results demonstrate that the obtained MIPMs are applicable as inner adsorbents in MISPE cartridges for extraction of AMPI in foods.
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