Inexpensive Procedure for Measurement of Ethanol: Application to Bioethanol Production Process
| Autor: | Nihad Adnan, Roni Miah, Noyon Kumar Barman, Mamoru Yamada, Jamsheda Ferdous Tuli, Ali Azam Talukder, Ayesha Siddiqa, Shuvra Kanti Dey |
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| Rok vydání: | 2017 |
| Předmět: |
Ethanol
Aqueous solution Chromatography 010401 analytical chemistry 02 engineering and technology General Medicine 021001 nanoscience & nanotechnology Phosphate 01 natural sciences 0104 chemical sciences Solvent chemistry.chemical_compound chemistry Biofuel Reagent Gas chromatography Solubility 0210 nano-technology |
| Zdroj: | Advances in Microbiology. :743-748 |
| ISSN: | 2165-3410 2165-3402 |
| Popis: | We have developed a spectrophotometric method for measurement of ethanol concentration in any unknown sample using a solvent tri-n-butyl phosphate [TBP, non-alcoholic solvent, density = 0.975 to 0.976, solubility in water = 0.028% (w/v)]. Solvent TBP separates ethanol from the non-hydrolyzed substrates that could interrupt the desired result by reacting with dichromate reagent. Oxidation of ethanol with dichromate reagent imparts blue green-colour to the solvent, which is easily detected by Spectrophotomer at 595 nm. Our established method showed similar results performed by relatively expensive Gas Chromatography (GC) method. In our present study we put forth a cheap alternate method for determining ethanol concentration in any aqueous solution. |
| Databáze: | OpenAIRE |
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