Issue 12, 2023

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

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

Article information

Article type
Paper
Submitted
12 Maijs 2023
Accepted
07 Okt. 2023
First published
19 Okt. 2023
This article is Open Access
Creative Commons BY-NC license

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

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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