ACADSTAFF UGM
| Title | : | Colorimetric Chemosensor for Sulfide Anion Detection Based on Symmetrical Nitrovanillin Azine |
| Author | : |
DIANA LESTARI (1) Prof. Dra. Tutik Dwi Wahyuningsih, M.Si., Ph.D. (2) Prof. Drs. Bambang Purwono, M.Sc., Ph.D. (3) |
| Date | : | 14 2023 |
| Keyword | : | 5-nitrovanillin,hydrazine,azine,colorimetric,chemosensor 5-nitrovanillin,hydrazine,azine,colorimetric,chemosensor |
| Abstract | : | The nitrovanillin azine (NA) has been successfully synthesized and examined as a colorimetric chemosensor for sulfide anion detection. The NA was synthesized using two steps reaction. Vanillin was reacted with concentrated nitric acid to form 5-nitro vanillin (NV) then the NV was condensed with hydrazine hydrate to produce the NA. The NA was obtained and fully elucidated by FTIR, 1H-NMR, 13C-NMR, and GC-MS spectrometer. The NA activity for anionic chemosensor was then carried out on several anions such as F⁻, Cl⁻, Br⁻, I⁻, S2⁻, CN⁻, HCO3⁻, AcO⁻, H2PO4⁻, N3⁻, NO2-. SCN⁻, ClO3⁻, and NO3⁻. The chemosensor tests showed NA was only selective for S2- in DMF:HEPES buffer (9:1, v/v, 10 mM, pH = 7.4) giving color change from light yellow to dark green. The LOD value was 1.43 × 10−5 M and the interaction model of NA-S2- indicated deprotonation mode between the -OH group with sulfide anion in a ratio of 1:1. The NA chemosensor can be applied for qualitatively analysis of sulfide anion using filter paper strips and quantitatively analysis of sulfide anion in tap water. |
| Group of Knowledge | : | Kimia |
| Original Language | : | English |
| Level | : | Internasional |
| Status | : |
Published
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| 1 |
2023-Diana Lestari.pdf
Document Type : [PAK] Full Dokumen
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