石墨烯复合材料固相萃取环境水样中的亚甲基蓝  

Application of graphene composites for the SPE clean-up of Methylene Blue from environment water samples

作　　者：仲淑贤[1] 吴西林[2] 杨利宁[2] 陈建荣[1,2] ZHONG Shuxian WU Xilin YANG Li＇ning CHEN Jianrong(College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua 321004, China College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, China)

机构地区：[1]浙江师范大学化学与生命科学学院,浙江金华321004 [2]浙江师范大学地理与环境科学学院,浙江金华321004

出　　处：《浙江师范大学学报（自然科学版）》2017年第3期294-298,共5页Journal of Zhejiang Normal University:Natural Sciences

基　　金：浙江省高校化学重中之重学科和先进催化材料教育部重点实验室开放课题基金资助项目;浙江省公益性技术应用研究分析测试项目(2017C37024)

摘　　要：制备了磁性石墨烯-介孔二氧化硅(G/SiO_2/Fe_3O_4)复合材料,并将其作为固相萃取的吸附剂,建立了水样中亚甲基蓝的分离富集方法.对固相萃取条件如p H、样品溶液的体积、上样速率、材料用量、洗脱剂的种类及体积等条件进行了优化.在最优条件下,方法的检测限(S/N=3)为10μg/L,加标回收率为94.3%~95.4%.该方法可应用于环境水样中亚甲基蓝的检测.Synthesis of magnetic graphene mesoporous silica （G/SiO2/Fe3O4 ） composites and a new method using a column packed with G/SiO2/Fe3O4 as sorbent was developed for the separation and preconcentration of Methylene Blue （MB}. Some effective parameters on the extraction such as pH, sample volume, flow rates, amounts used of adsorbents, eluent type and its volume were selected and optimized. Under the optimum con- dition, the qualitative limit （ S/N = 3） for MB were found to be 10μg/L, the recoveries for the analytes were in the range of 94.3% -95.4%. The proposed method was showed to be an effective approach for determination of MB in environment water samples.

关 键 词：石墨烯复合材料 固相萃取 亚甲基蓝 环境水样 

分 类 号：O658.2[理学—分析化学]