期刊
ANALYTICAL LETTERS
卷 51, 期 6, 页码 921-934出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/00032719.2017.1364744
关键词
Chlorpyrifos; energy-dispersive X-ray analysis; flow cytometry; fluorescence; gas chromatography; molecularly imprinted polymers; quantum dots; quenching; scanning electron microscopy
资金
- National Key Research and Development Program of China [2016YFD0401201]
- Science and Technology Project Foundation of Shenyang [F16-107-4-00, F17-191-9-00]
Uniform-sized fluorescent molecularly imprinted polymers were prepared by one-step swelling and suspension polymerization, while chlorpyrifos, methacrylic acid, ethylene glycol dimethacrylate, and oil-soluble CdSe/ZnS quantum dots were used as the carrier, template molecule, functional monomer, cross-linker, and fluorophor, respectively. The morphology, adsorption dynamics, binding ability, and selectivity of quantum dot-labeled molecularly imprinted polymers were evaluated. The dosage of quantum dots for labeling the molecularly imprinted polymers was optimized. The results showed that the optimized dose of quantum dots was 200 mu L using a concentration of 8.0 mu M. The microsphere size was approximately 10 mu m with a honeycombed surface. The quantum dot-labeled molecularly imprinted polymers had an even brightness and a high selectivity. In the presence of different concentrations of chlorpyrifos, a decrease in the fluorescence intensity of the quantum dot-labeled molecularly imprinted polymer was clearly identified by flow cytometry. The whole detection process was accomplished within 2h including pretreatment. This method was used for the determination of chlorpyrifos in tap water samples.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据