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| Determination of 4-Aminobiphenyl by Zero Current Potentiometry |
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| DOI： |
| KeyWord:4-aminobiphenyl molecularly imprinted polymer interfacial potential zero current potential |
| Author | Institution |
| MA Ming ming，LIANG Juan li,SU Xin ke,LIU Jia |
西安工程大学环境与化学工程学院 |
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| 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%. |
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