Electrochemical Study of 5-Nitroquinoline Using Carbon Film Electrode for its Voltammetric Determination in Model Samples of Drinking and River Water
2015
Abstract
This work is focused on searching for optimized working conditions for determination of 5-nitroquinoline (5-NQ) using modern voltammetric methods. The following optimal conditions were found: Britton-Robinson (BR) buffer of pH 11.0 for both methods (DCV and DPV), the regeneration potential cycles (E-in = 0 mV, E-fin = 0 mV).
Under these conditions limits of quantification (LOQ) were found to be 1.0x10(-6) mol L-1 for DCV and 4.0x10(-7) mol L-1 for DPV in deionized water. The LOQ for model samples of water were 2.0x10(-7) mol L-1 for drinking water and 6.0x10-7 mol L-1 for river water, both using DPV.