摘要
结合纳米材料与电化学传感器的优点制备了Nafion/GSH-Fe3O4/炭气凝胶/GC传感器用于丙烯酰胺(AA)的检测,通过对影响传感器响应条件以及GSH与AA反应条件的优化发现:固载方式为Nafion/GSH-Fe3O4/炭气凝胶/GC,炭气凝胶修饰量为4μL时传感器响应效果最好,当温度为35℃时对AA的检测最好,在最优条件下对一系列不同浓度的AA进行检测发现,在10-8~5×10-7mol/L与10-10~10-8 mol/L范围内ΔIp与AA浓度呈现良好的线性关系,线性方程分别为:Y1=-0.299X+2.699;Y2=-15.272 76X+167.679 91,检出限为8.87×10-11 mol/L。
A new Naflon/GSH-Fe3O4/Carbon aerogels/GC electrochemical sensor was fabricated based on nanomaterials and advantages of biosensor.With optimizing the reaction condition,the optimum experimental conditions were determined as follows:the solid loading way was Naflon/GSH-Fe3OVCarbon aerogels/GC,the amount of modified Carbon aerogels was 4μL,and reaction temperature was 35°C.Under the optimum conditions,the obtained sensor presented linear response in the range of 1x 10"8 to 5x 10"7 mol/L and 1×10^-10 to 1×10^-8 mol/L,the linear regression equation was Y1=-0.299X+2.699 and Y2=-15.272 76X+167.679 91.The detection limit was 8.87×10^-11 mol/L.
作者
金华丽
李青叶
JIN Huali;LI Qingye(School of Food Science and Technology,Henan University of Technology,Zhengzhou 450001,China)
出处
《河南工业大学学报（自然科学版）》
CAS
北大核心
2018年第4期38-43,共6页
Journal of Henan University of Technology：Natural Science Edition
