Simple flow system with in-line gas-diffusion unit for determination of ethanol employing hypsochromic shift of visible absorbance band of methyl orange

• Main Authors: Nuanlaor Ratanawimarnwong, Montatip Sinpun, Panuwat Chankaw, Nathawut Choengchan, Duangjai Nacapricha
• Other Authors: King Mongkut's Institute of Technology Ladkrabang
• Format: Article
• Published: 2020
• Subjects: Chemistry
• Online Access: https://repository.li.mahidol.ac.th/handle/123456789/49581
• Institution: Mahidol University

© 2019 Elsevier B.V. The effect of solvent composition on the uv–visible spectrum of methyl orange was investigated for application to the quantitative determination of ethanol. At fixed pH, there was a hypsochromic shift of the absorbance band of methyl orange with increasing ethanol concentration....