Determination of Sulfamerazine in River Water Using Thermoresponsive Modified Silica for Solid-Phase Extraction with High-Performance Liquid Chromatography Detection

作者：Liu, Lingling; Zhao, Xiaowei; Zeng, Lintao; Zhu, Tao^*

来源：Analytical Letters, 2018, 51(17): 2682-2694.

DOI：10.1080/00032719.2018.1447951

• High-performance liquid chromatography
• N-isopropylacrylamide
• silica
• solid-phase extraction
• sulfamerazine
• thermoresponsive

Four thermoresponsive silica-poly(N-isopropylacrylamide-co-butyl methacrylate) materials were prepared by grafting (N-isopropylacrylamide-co-butyl methacrylate) at different ratios on multimodal porous silica via surface-initiated atom transfer radical polymerization. The thermoresponsive materials were employed as the adsorbent for the rapid determination of sulfamerazine in river water by solid-phase extraction. The properties of silica-poly(N-isopropylacrylamide-co-butyl methacrylate) were characterized by scanning electron microscopy and Fourier transform infrared spectroscopy. Static adsorption measurements showed that the silica-poly(N-isopropylacrylamide-co-butyl methacrylate)(3) material had the highest adsorption characteristics (8.72mgg(-1)) at 35 degrees C. The solid-phase extraction conditions were optimized, including the elution solvent and its volume used. The thermoresponsive silica-poly(N-isopropylacrylamide-co-butyl methacrylate)(3) material provided satisfactory results for solid-phase extraction, with a recovery of 90.06%, allowing the rapid purification of sulfamerazine in river water.

• 出版日期2018
• 单位天津理工大学