Determination of L-Serine with Self-assembled Molecular Imprinted Monolayer Modified Electrode

A new amplified self-assembled modified electrode for L-serine recognition,with molecular imprinted monolayer on electrodeposited porous gold film was developed.L-cysteine was used as assembling monomer and L-serine was used as template.Its stable response to L-serine was achieved within 5 min,covering a linear range from 5.0×10-6-2.0×10-4 mol/L,with a sensitivity of 215 mA·L·mol-1,and a detection limit of 4.8×10-7 mol/L.Because of the effective increase of template molecular on the electrode surface,the analytical performance of this imprinted electrode was better than the imprinted electrode without porous gold film modified.