Chemical leaching Evaluation from Drinking Water bottles by using AT-FTIR Spectroscopic Method

Abstract

The study investigated the migration of chemical substances from plastic water bottles into stored drinking water under different storage conditions. Four commercially available plastic bottles were filled with distilled water and stored at room temperature and elevated room temperature. The sample were analysed using FTIR spectroscopy to detect chemical changes. FTIR spectra revealed additional absorption bands in bottled-water samples, particularly at 1630-1650 cm⁻¹, 1630–1650 cm⁻¹, 1460–1420 cm⁻¹, and 1295 cm⁻¹, indicating the presence of carbonyl, carbonate, amide, and aliphatic compounds. Increased peak intensity was observed in heat exposed sample, suggesting greater chemical migration at higher temperatures. The finding demonstrates the storage conditions, especially temperature, influence the release of plastic derived compounds into drinking water and may affect water quality. FTIR analysis proved effective in detecting these changes and assessing potential contamination.