Anodic voltammetric determination of 2-nitrophenol at a carbon film electrode in model samples of drinking water
2015
Abstract
This work is focused on the development of new differential pulse voltammetric (DPV) method for the determination of submicromolar concentrations of 2-nitrophenol using carbon film electrode. The highest and the best developed DPV peak was obtained using Britton-Robinson buffer of pH = 6.0.
The best repeatability was obtained by inserting regeneration potentials E-in = 1300 mV; E-fin = 0 mV. The calibration curves of 2-nitrophenol in both deionized and drinking water were linear in the concentration range from 4x10(-7) to 1x10(-4) mol L.
Limit of quantification for DPV in deionized water was 2.0x10(-7) mol L-1 and in drinking water 1.0x10(-7) mol L-1.