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. 2023 Dec 2;191(1):3. doi: 10.1007/s00604-023-06029-x

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© The Author(s) 2023

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 1 — (A) Scheme of the microFIA system to determine Fe(III). (a) Peristaltic pump for solutions, (b) six-way valve, (c) diluter, (d) mixer, (e) disperser, (f) detector, (g) 3-way solenoid valve, (h) peristaltic pump for cleaning, (i) analytical signal, the peak height is proportional to concentration. (B) Analytical signal and sequence of time diagram to determine Fe(III): injection time, start-up time, time at the maximum signal, and recovery time of the baseline. The total analysis time is 10.1 min