Detailed Information
Cited 0 time in 
Cited 0 time in 
Cited 0 time in
Metadata Downloads
Determination of Water Content in Bioethanol Using the 1 H NMR Chemical Shift Change
- Issue Date
- Apr-2019
- Publisher
- Wiley Blackwell
- Keywords
- 1 H NMR; Bioethanol; Chemical shift; qNMR; Water content
- Citation
- Bulletin of the Korean Chemical Society, v.40, no.4, pp 313 - 316
- Pages
- 4
- Journal Title
- Bulletin of the Korean Chemical Society
- Volume
- 40
- Number
- 4
- Start Page
- 313
- End Page
- 316
- ISSN
- 0253-2964
1229-5949
- Abstract
- Chemical shift change in 1 H NMR spectroscopy was used to determine water content in bioethanol. As water content in ethanol is increased, the proton peaks shifted to down-field due to the change in the microstructure of the water-ethanol mixture. The linear correlation between water content and chemical shift change enables the evaluation of water content in bioethanol. Because the same relationship between chemical shift change and the water content is obtained for both ethanol and bioethanol, water content in bioethanol can be determined using the calibration curve obtained with anhydrous ethanol. The developed method was validated by comparison to the results of Karl Fischer titration and was applied to commercially available bioethanols. © 2019 Korean Chemical Society, Seoul & Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - College of Natural Sciences > Department of Chemistry > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.