Muliawati, Nindya Tri and Siswanta, Dwi and Aprilita, Nurul Hidayat (2021) Development of a Simple Fe(II) Ion Colorimetric Sensor from the Immobilization of 1,10-Phenanthroline In Alginate/Pectin Film. INDONESIAN JOURNAL OF CHEMISTRY, 21 (2). pp. 411-420. ISSN 1411-9420
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An optical analytical sensor was proposed based on the complexation reactions of 1,10-phenanthroline derivative in aqueous solutions. This study aims to synthesize a metal ion sensor for detecting Fe(II) ion from the immobilization of 1,10-phenanthroline compound in alginate/pectin film. This was carried out by characterizing the films using the Fourier-transform infrared spectrometry (FT-IR) and scanning electron microscope (SEM). The determination of the optimal condition for Fe(II) ion detection and validation of the parameters was conducted by measuring the absorbance of the films using a UV-Vis spectrophotometer. After the addition of Fe(II) ion, the color of the alginate/pectin-phenanthroline film changed from transparent yellow to orangered, showing its potential as a visual colorimetric sensor for iron(II) ion. It was found that the optimum condition for Fe(II) ion sensing was at 513 nm after 2 min of detection at pH 2. The alginate/pectin-phenanthroline film had good linearity, precision, selectivity, and accuracy with a detection limit as low as 0.446 mg L-1, which was remarkable.
Item Type: | Article |
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Uncontrolled Keywords: | alginate/pectin film; colorimetric sensor; Fe(II) ion detection; 1,10-phenanthroline |
Subjects: | Q Science > QD Chemistry |
Divisions: | Faculty of Mathematics and Natural Sciences > Chemistry Department |
Depositing User: | Sri JUNANDI |
Date Deposited: | 22 Oct 2024 08:01 |
Last Modified: | 22 Oct 2024 08:01 |
URI: | https://ir.lib.ugm.ac.id/id/eprint/8966 |