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Non-destructive measurement technique for water content in organic solvents based on a thermal approach
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Document Title
Non-destructive measurement technique for water content in organic solvents based on a thermal approach
Author
Surangsrirat D, Sridhar V, Srikun O, Puanglamjeak M, Birdi P, Dumnin S, Thanawattano C, Chana KS
Name from Authors Collection
Scopus Author ID
36349939000
Affiliations
National Science & Technology Development Agency - Thailand; University of Oxford
Type
Article
Source Title
RSC ADVANCES
Year
2022
Volume
12
Issue
10
Page
6181-6185
Open Access
Green Published, gold
Publisher
ROYAL SOC CHEMISTRY
DOI
10.1039/d2ra00352j
Format
Abstract
The water content of organic solvents is one of the crucial properties that affect the quality of the products and the efficiency of the manufacturing processes. The established water determination methods such as Karl Fischer titration and gas chromatography require skilled operators, specific reagents, and prolonged measurement time. Thus, they are not suitable for both on-line and in-line applications. In this study, we aim to develop a real-time and low-cost device with reliable accuracy. The proposed device based on a newly developed thermal approach could non-destructively detect the water content in multiple organic solvents at low concentrations with high accuracy and without the use of any specific reagent. Experiments were performed for the determination of water content in organic solvents such as methanol, ethanol, and isopropanol. The results show that the proposed device is feasible for the water content determination in methanol, ethanol, and isopropanol at 0-1% w/w. A Bland-Altman plot to illustrate the differences in measurements between the proposed device and coulometric Karl Fischer titration shows that most of the measurements lie within the limits of agreement where 95% of the differences between the two methods are expected to fall in the range of -0.13% and 0.09%.
Industrial Classification
Knowledge Taxonomy Level 1
Knowledge Taxonomy Level 2
Funding Sponsor
Health Systems Research Institute (HSRI), Thailand; University of Oxford Thermofluids Institute
License
CC-BY-NC
Rights
Authors
Publication Source
WOS