Issue 12, 2023
From the journal:

Environmental Science: Water Research & Technology

Highly versatile and automated total ammonia nitrogen compact analyzer suitable for different types of water samples

Antonio Calvo-López, ORCID logo a   Julián Alonso-Chamarroa  and  Mar Puyol ORCID logo *a  

* Corresponding authors

a Group of Sensors and Biosensors, Department of Chemistry, Autonomous University of Barcelona, Edifici Cn, 08193 Bellaterra, Barcelona, Spain
E-mail: mariadelmar.puyol@uab.es
Tel: +34935818296

Abstract

Continuous monitoring of total ammonia nitrogen (TAN) currently needs to improve further not only to meet optimal analytical features but also to reduce equipment maintenance needs and avoid manual intervention. The development, evaluation in different aqueous samples (fresh and wastewater) and validation of a fully automated and adaptable miniaturized potentiometric analytical instrument with this purpose are presented. The main goals accomplished are a wider and adaptable working range (0.08 to 1000 mg L−1 NH4+) with a detection limit of 0.03 mg L−1 and a significant reduction of reagent and sample consumption, as well as waste generation, compared to current commercial potentiometric flow analyzers. Moreover, different programmable calibration and sample analysis protocols have been successfully applied. Finally, suitable analytical features in terms of accuracy and precision are achieved even with samples with very complex matrices without any pretreatment required.

Graphical abstract: Highly versatile and automated total ammonia nitrogen compact analyzer suitable for different types of water samples

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Article information

DOI
https://doi.org/10.1039/D3EW00348E
Article type
Paper
Submitted
12 May 2023
Accepted
07 Oct 2023
First published
19 Oct 2023
This article is Open Access
Creative Commons BY-NC license

Environ. Sci.: Water Res. Technol., 2023,9, 3366-3376

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Highly versatile and automated total ammonia nitrogen compact analyzer suitable for different types of water samples

A. Calvo-López, J. Alonso-Chamarro and M. Puyol, Environ. Sci.: Water Res. Technol., 2023, 9, 3366 DOI: 10.1039/D3EW00348E

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