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Seeroong Prichanont. Colorimetric method for determination of ethanol in gas phase. (). King Mongkut's University of Technology North Bangkok. Central Library. : , 2017.
Colorimetric method for determination of ethanol in gas phase
Name: Methika Leeparikhon
Organization :
Chulalongkorn University. Faculty of Engineering
Name: Apita Bunsiri
Organization :
Kasetsart University Kamphaensaen Campus. RDI-KPS
Name: Seeroong Prichanont
Organization :
Chulalongkorn University. Faculty of Engineering
Email :
Seeroong.p@chula.ac.th
keyword:
Fresh-cut fruits
LCSH:
Ethanol
LCSH:
Colorimetric analysis
Abstract:
The aim of this research was to develop a test strip for determination of gas phase
ethanol using colorimetric method for indicating the deterioration of fruits. The test strip
comprised of a chemical reagent that was specific to ethanol and its support. In this study,
ethanol acted as a reducer for a transition metal compound which changed its color due to the
reaction. Therefore, the amount of ethanol could be monitored through the changes of the test
strip colors. In this research, the ethanol concentration (0-1,000 ppm), types of support (nylon
paper, silica plate, and ceramic particles), types of chemical reagents (Transition metal I,
Transition metal II) were investigated. It was found that Transition metal I could be easily
reduced by other contaminated compounds, thus the transition metal II was chosen due to its
higher stability. Transition metal II-impregnated ceramic particles were suitable for further
development into a test strip. The suitable volumetric ratio of transition metal II (0.1M) to
acid (98%) solutions for sensing ethanol at a range of 0-1,000 ppm was 3:0.5. To confirm that
the changes of color of the transition metal was due to the reaction involving ethanol, GC and
UV-Visible spectrometry were applied.
King Mongkut's University of Technology North Bangkok. Central Library
Address:
BANGKOK
Email:
library@kmutnb.ac.th
Created:
2017
Modified:
2562-08-05
Issued:
2019-08-05
บทความ/Article
application/pdf
BibliograpyCitation :
In Chemical Society of Thailand under the Patronage of Her Royal Hghness Princess Chulabhorn Mahidol and King Mongkut's University of Technology North Bangkok Faculty of Applied Science. Pure and Applied Chemistry International Conference (PACCON 2017) (pp.331-336). Bangkok : Chemical Society of Thailand under the Patronage of Her Royal Hghness Princess Chulabhorn Mahidol
eng
©copyrights King Mongkut's University of Technology North Bangkok
RightsAccess:
ใช้เวลา
0.038239 วินาที
Methika Leeparikhon
| Title | Contributor | Type |
|---|---|---|
| Colorimetric method for determination of ethanol in gas phase
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าพระนครเหนือ Methika Leeparikhon;Apita Bunsiri;Seeroong Prichanont | บทความ/Article |
Apita Bunsiri
| Title | Contributor | Type |
|---|---|---|
| Characterization of lignin and enzymes involved in the increased firmness of mangosteen fruit pericarp after impact
มหาวิทยาลัยเกษตรศาสตร์ Apita Bunsiri | Saichol Ketsa | วิทยานิพนธ์/Thesis |
| Colorimetric method for determination of ethanol in gas phase
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าพระนครเหนือ Methika Leeparikhon;Apita Bunsiri;Seeroong Prichanont | บทความ/Article |
Seeroong Prichanont
| Title | Contributor | Type |
|---|---|---|
| Colorimetric method for determination of ethanol in gas phase
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าพระนครเหนือ Methika Leeparikhon;Apita Bunsiri;Seeroong Prichanont | บทความ/Article |