•  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
热点追踪
期刊检索


检索
检索项:
检索词:
总目录
  • WCSB9︱2019(第九届)世界采样和混样大会 查看全文>>
  • 关于召开第十五届全国青年分析测试学术报告会的通知 查看全文>>
友情链接
零流电位法对4-氨基联苯的检测
    点此下载全文
作者单位
马明明,梁娟丽,苏新科,刘佳 西安工程大学环境与化学工程学院 
基金项目:陕西省科技攻关项目(2013kj07-24);西安市科技创新引导项目(201805030YD8CG14(15))
中文摘要:以铅笔芯电极(PGE)为工作电极,铂电极为对电极,饱和甘汞电极为参比电极,在含4.0×10-3mol/L丙烯酸、1.0×10-3 mol/L 4-氨基联苯(4-ABP)的磷酸盐缓冲溶液(PBS,pH 7.17)中,采用循环伏安法以0.1 V·s-1在-1.6~1.6 V电位范围循环扫描16圈,经超声洗脱6 min后制得4 氨基联苯印迹聚合物修饰电极(4-ABP-MIP/PGE)。零流电位法下,在4-ABP浓度0.005~50 μmol/L范围内,4-ABP-MIP/PGE的零流电位EZCP与4 ABP浓度的对数呈线性关系,检出限为1.07 nmol/L。将该传感器用于实际样品中4-ABP的检测,平均回收率为96.0%~102%。
中文关键词:4-氨基联苯  分子印迹聚合物  界面电位  零流电位
 
Determination of 4-Aminobiphenyl by Zero Current Potentiometry
Abstract:A 4-aminobiphenyl molecularly imprinted polymer modified pencil graphite electrode(4-ABP-MIP/PGE) was fabricated with a pencil graphite electrode(PGE) as working electrode,a platinum electrode as counter electrode and a saturated calomel electrode as reference electrode.The PGE was put into a pH 7.17 PBS containing 4.0×10-3 mol/L acrylic acid and 1.0×10-3 mol/L 4-aminobiphenyl(4-ABP),scanned via cyclic voltammetry by 16 cycles in range of-1.6-1.6 V at a scan rate of 0.1 V·s-1,followed by ultrasonic elution for 6 min.By means of the interfacial potentiometry with double poles,the zero current potential EZCP of 4-ABP-MIP/PGE was linear with logarithm of 4-ABP concentration in the range of 0.005-50 μmol/L,with a detection limit of 1.07 nmol/L.The sensor was used in the determination of 4-ABP in real samples with recoveries of 96.0%-102%.
Key Words:4-aminobiphenyl  molecularly imprinted polymer  interfacial potential  zero current potential
引用本文:马明明,梁娟丽,苏新科,刘佳.零流电位法对4-氨基联苯的检测[J].分析测试学报,2018,37(12):1504-1507.
摘要点击次数: 33
全文下载次数: 44
查看全文  查看/发表评论  下载PDF阅读器