本文制备了磺胺甲恶唑分子印迹聚合物,通过静态吸附实验及红外光谱等手段研究其性能,并以该聚合物为核心材料自制液体样品快速前处理装置,建立且优化出一种水溶液中微量磺胺甲恶唑的简单、经济的现场批量前处理方法.通过加标回收实验验证了该方法的可行性,并进行了实际样品的现场前处理与测定.结果表明,所制备的印迹聚合物(MIP)具有良好的亲和性和特异选择性;在0.50-1000.00 μg·L-1范围内,所建立方法的水样加标回收率为72.0％-100.3％,相对标准偏差为2.2％-5.1％(n=6),方法的检测限为0.01 g·L-1.本实验所采集的5种实际样品(红湖水样、水上乐园水样、鱼塘水样、牛尿和猪尿)中均检出磺胺甲恶唑,其浓度分别为0.76、1.23、1.94、202.0、435.3 μg·L-1.
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