血红蛋白-氮掺杂碳纳米管电化学生物传感器检测水中溴酸盐  

Electrochemical biosensor based on hemoglobin-nitrogen-doped carbon nanotube for the detection of bromate in water

作　　者：吴云 马继平[1] 吴令霞 江波 凌慧娟 WU Yun;MA Jiping;WU Lingxia;JIANG Bo;LING Huijuan(School of Environmental and Municipal Engineering,Qingdao University of Technology,Qingdao 266520,China)

机构地区：[1]青岛理工大学环境与市政工程学院,青岛266520

出　　处：《分析试验室》2023年第6期818-823,共6页Chinese Journal of Analysis Laboratory

摘　　要：以高导电性的氮掺杂碳纳米管为固载基底,以血红蛋白为识别元件,构建了一种新型溴酸盐(BrO3-)电化学生物传感器。该传感器对BrO3-表现出较高的灵敏度(0.02519μA/(μmol/L))、较低的检出限(75.43 nmol/L)和较宽的线性范围(1×10^(-7)~4.66×10^(-5) mol/L),已成功应用于实际水样中BrO3-的高灵敏快速定量检测。A novel electrochemical biosensor based on hemoglobin-nitrogen doped carbon nanotubes was constructed for the rapid detection of BrO_3~-.The hemoglobin was employed as recognition element,and the nitrogen doped carbon nanotubes with high electrical conductivity was utilized as signal conductors.The sensor indicated a high sensitivity of 0.02519μA(μmol/L),a lower detection limit of 75.43 nmol/L and a wider linear range of 1×10^(-7)-4.66×10^(-5)mol/L.The proposed method was subsequently applied to sensitive and rapid determination of BrO_3~-in actual water samples.

关 键 词：溴酸盐 电化学生物传感器 血红蛋白 氮掺杂碳纳米管 

分 类 号：O657.1[理学—分析化学] X832[理学—化学]