基于石墨烯-纳米氧化铈修饰电极测定海水基锌离子  

Determination of seawater-based zinc ions based on graphene-cerium oxide nanoparticle modified electrode

作　　者：曾泽樨 曲伟 邱成军 庄远 王萍 吴雨轩 高家琪 ZENG Zexi;QU Wei;QIU Chengjun;ZHUANG Yuan;WANG Ping;WU Yuxuan;GAO Jiaqi(College of Mechanical and Marine Engineering,Beibu Gulf University,Qinzhou 530000,China;Eastern Michigan Joint College of Engineering,Beibu Gulf University,Qinzhou 530000,China;Guangxi Key Laboratory of Ocean Engineering Equipment and Technology,Qinzhou 530000,China)

机构地区：[1]北部湾大学机械与船舶海洋工程学院,钦州530000 [2]北部湾大学东密歇根联合工程学院,钦州530000 [3]广西海洋工程装备与技术重点实验室,钦州530000

出　　处：《分析试验室》2024年第7期960-965,共6页Chinese Journal of Analysis Laboratory

基　　金：国家自然科学基金(52161042);北部湾大学高层次人才科学研究基金(18KYQD30);中船集团广西造船和海洋工程技术合作项目(ZCGXJSB20226300222-06);钦州市科学研究与技术开发计划项目(202116622)资助。

摘　　要：采用滴涂法制备了一种石墨烯/纳米氧化铈/Nafion修饰的玻碳电极(GR/CeO_(2)/Nafion/GCE),以循环伏安(CV)、方波阳极溶出伏安(SWASV)、正交试验等方法研究了Zn^(2+)在GR/CeO_(2)/Nafion/GCE上的电化学行为。在最优实验条件下,Zn^(2+)的响应峰电流与Zn^(2+)浓度在5~800μg/L范围内呈良好的线性关系,相关系数为0.998,方法检出限为1.20μg/L。GR/CeO_(2)/Nafion/GCE具有良好的稳定性、重现性及抗干扰性,用于对海水中Zn^(2+)进行检测,加标回收率为94.2%~102.3%。In this paper,a graphene/nano-cerium oxide/Nafion modified glassy carbon electrode(GR/CeO_(2)/Nafion/GCE)was prepared by drop coating method,and the electrochemical behavior of Zn^(2+)on GR/CeO_(2)/Nafion/GCE was investigated by cyclic voltammetry(CV),square-wave anodic stripping voltammetry(SWASV),and orthogonal experimental method.Under the optimal experimental conditions,the response peak currents of Zn^(2+)showed good linearity in the Zn^(2+)concentration range of 5~800μg/L,with the correlation coefficient of 0.998.The limit of detection was 1.20μg/L.GR/CeO_(2)/Nafion/GCE has good stability,reproducibility and interference resistance.This method was applied to detect Zn^(2+)in seawater with the spiked recoveries of 94.2%-102.3%.

关 键 词：石墨烯 方波阳极溶出伏安法 锌离子 氧化铈 

分 类 号：O657.1[理学—分析化学] X832[理学—化学]