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磁固相萃取-液相色谱法测定环境水样中有机紫外防晒剂
Authors
刘程
叶子雯
陈蕾
黄晓佳
Publication date
8 August 2019
Publisher
Abstract
采用自制的聚离子液体功能化磁性材料有效富集有机紫外防晒剂,并与高效液相色谱-二极管阵列检测器(HPLC-DAD)联用,建立了环境水样中痕量有机紫外防晒剂的检测方法。研究系统考察了解吸溶剂、吸附和解吸时间、样品pH值、离子强度等因素对萃取性能的影响。在最佳萃取条件下,水杨酸辛酯的线性范围为0.5~200.0μg/L,其他有机紫外防晒剂的线性范围为0.2~200.0μg/L; 6种目标物的检出限(LOD,S/N=3)和定量限(LOQ,S/N=10)分别为0.009~0.13μg/L和0.031~0.43μg/L。所建方法成功用于实际环境水样中有机紫外防晒剂的测定,不同加标水平下目标物的加标回收率为71.4%~120%,相对标准偏差均低于10%。研究表明,所建方法具有操作简便、萃取速度快、灵敏度高和环境友好等特点,可用于环境水样中有机紫外防晒剂的检测
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Last time updated on 20/11/2020