1998•The AnalystRequires access

Voltammetric behaviour of brodimoprim at mercury and its determination in biological fluids using differential-pulse polarography

Guorong Zhang

Abstract

A differential-pulse polarographic (DPP) method was developed for the determination of brodimoprim (BDP) in Michaelis (MCL) buffer. The peak potential (Ep) occurs at –1.33 V (versus SCE) when the pH of the system is 4.0. The voltammetric behaviour in MCL buffer and the mechanisms of the electrode reaction were studied by, e.g., linear sweep voltammetry, cyclic voltammetry and normal-pulse polarography. The wave was confirmed to be an irreversible adsorptive wave. The relationship between peak height and concentration of BDP was linear in the range 5.0 × 10–8–1.0 × 10–7 mol l–1 with a detection limit of 1.0 × 10–9 mol l–1, when the adsorptive accumulation time was 5 min.

About this research paper

What this paper is about

Why it matters

OpenAlex reports 1 citations for this work. Citation counts describe recorded attention and do not establish research quality.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

Key concepts: Polarography, Chemistry, Dropping mercury electrode, Peak current, Detection limit, Buffer solution, Analytical Chemistry (journal), Pulse (music)