The Potential for On-Site Determination of Mn(II) using Eco-Friendly Natural Tannins: A Cost-Effective and Sustainable Approach

  • Pius Dore Ola Department of Chemistry, Faculty of Science and Engineering, Nusa Cendana University, Kupang-85118, Indonesia
  • Domonika Pransa Kothan Department of Chemistry, Faculty of Science and Engineering, Nusa Cendana University, Kupang-85118, Indonesia
  • Suwari Suwari Center for Research and Scipreneur of Dry Land and Archipelagic Chemistry, Nusa Cendana University, Kupang-85118, Indonesia
  • Luther Kadang Integrated Research Center Laboratory (Biosains), Nusa Cendana University, Kupang-85118, Indonesia
  • Dodi Darmakusuma Center for Research and Scipreneur of Dry Land and Archipelagic Chemistry, Nusa Cendana University, Kupang-85118, Indonesia
DOI: https://doi.org/10.30598/ijcr.2025.12-ola
Keywords: Neurotoxic element, eco-friendly and cost-effective reagent, tannin, method validation, on the spot analysis

Abstract

This study exploited digital image colourimetry (DIC) with natural tannin as a reagent to determine Mn(II) in aqueous media. The calibration curve had a correlation coefficient of 0.995, indicating a strong dependence of absorbance on Mn(II) concentration. Although the spectrophotometry method with NaIO4 as a reagent showed better results, the DIC method remained within an acceptable range. Both methods showed insignificant difference in measurement average and variance. Common cations in natural water interfered with Mn(II) detection at a tolerance of less than 5% except for Fe(III), which can be easily precipitated before Mn(II) analysis. The DIC method applied to three water samples showed acceptable recovery, offering an easy and inexpensive on site Mn(II) determination.

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Published
2025-01-24
How to Cite
(1)
Ola, P. D.; Kothan, D. P.; Suwari, S.; Kadang, L.; Darmakusuma, D. The Potential for On-Site Determination of Mn(II) Using Eco-Friendly Natural Tannins: A Cost-Effective and Sustainable Approach. Indo. J. Chem. Res. 2025, 12, 198-205.
Issue
Vol 12 No 3 (2025): Edition for January 2025
Section
Research articles

Copyright (c) 2025 Pius Dore Ola, Domonika Pransa Kothan, Suwari Suwari, Luther Kadang, Dodi Darmakusuma

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