1 条结果 关键词:DNA修饰电极 ×

Highly selective electrochemical biosensor for the determination of folic acid based on DNA modified-pencil graphite electrode using response surface methodology.

Materials science & engineering. C, Materials for biological applications 2013 Mirmoghtadaie L, Ensafi AA, Kadivar M, Norouzi P

本文提出一种基于鲑鱼精子双链DNA修饰铅笔石墨电极的电化学生物传感器,用于叶酸快速筛查。首先采用响应面法优化双链DNA在铅笔石墨电极上的固定条件,考察溶液pH、DNA浓度、沉积时间和沉积电位四个因素,各设三个水平。最优条件为pH 4.8、DNA浓度24 μg/mL、沉积时间304 s、沉积电位0.60 V,此时腺嘌呤氧化信号为3.0...