Issue 2, 2022

Sequential injection method for bi-parametric determination of iron and manganese in soil leachates

Abstract

The aim of this work was to develop a sequential injection (SI) method for the determination of the micronutrients iron and manganese, in soil leachates, as a tool to assess potential groundwater contamination. The described sequential injection method was based on the reaction of iron with chelator MRB12, a greener alternative chromogenic reagent, and the reaction of manganese with zincon, within a single manifold. The developed SI method enabled the determination of iron in the range 0.10–1.00 mg L−1, and manganese in the range 0.25–2.5 mg L−1 with a limit of detection of 0.08 mg L−1 for iron and 0.24 mg L−1 for manganese. The determination of both parameters was made in 6 minutes, in triplicate. The application to monitor laboratory scale soil core columns (LSSCs), as a simulation of the soil leaching process, proved its efficiency to assess potential contamination of ground waters. Iron and manganese contents were effectively analysed in two different scenarios to mimic the leaching process with rainwater and fertilizer.

Graphical abstract: Sequential injection method for bi-parametric determination of iron and manganese in soil leachates

Supplementary files

Article information

Article type
Paper
Submitted
15 Nov 2021
Accepted
13 Dec 2021
First published
22 Dec 2021

Anal. Methods, 2022,14, 180-187

Sequential injection method for bi-parametric determination of iron and manganese in soil leachates

R. B. R. Mesquita, T. Moniz, M. J. M. Nunes, L. S. Mesquita, M. Rangel and A. O. S. S. Rangel, Anal. Methods, 2022, 14, 180 DOI: 10.1039/D1AY01932E

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements