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| Preparation of A Sensor Based on Graphene Modified Electrode and Molecularly Imprinted Polymers and Its Determination on Dopamine |
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| DOI：10.3969/j.issn.1004-4957.年份.月份 |
| KeyWord:graphene dopamine molecular imprinted polymers(MIPs) electrochemical sensor |
| Author | Institution |
| 王丹丹,曾延波,刘海清,尹争志,李蕾 |
1.常州大学化学与化工学院;2.嘉兴学院生物与化学工程学院 |
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| Abstract: |
| An electrochemical sensor based on dropped molecular imprinted polymers（MIPs） suspension for dopamine was fabricated.Influences of pH value,concentrations of graphene and MIPs were also optimized.The optimal conditions were as follows:pH value:7.0，concentration of graphene:0.5 g/L,concentration of MIPs:20 g/L.Under the optimal conditions,the prepared sensor showed good selectivity and high sensitivity for dopamine.The DPV peak current is linear to the DA concentration in the range of 2.0×10-7-1.0×10-4 mol/L，with a detection limit（S/N=3） of 6.8×10-8 mol/L.The prepared sensor was successfully applied in the determination of dopamine hydrochloride with recoveries of 98%-105%． |
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