Flow injection electrogenerated chemiluminescence determination of vanadium and its application to environmental water sample

摘要

A selective flow injection electrogenerated chemiluminescence (CL) method for the determination of vanadium is decribed in this paper.It was based on the chemiluminescence resction of luminol with vanadium (II),which was on-line electrogenerated from vanadate using a flow-through carbon electrolytic cell.Under the optimal conditions,the CL intensity was linear to the concentration of vanadium in the range of 5.0X10~(-10)-1.0X10~(-7)g ml~(-1)with deterction limiet of 2X10~(-10)g ml~(-1) vanadium.The relative standard deviation was 4precnt for 5.0X10~(-8)g ml~(-1) vanadium in 11 repeated measurements.The methoed was been successfully appiled to the determination of vanadium in environmental water samples.