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Nakara Bhawawet. Colorimetric paper-based device coated with deep eutectic solvent for chromium (VI) detection. (). King Mongkut's University of Technology North Bangkok. Central Library. : , 2023.
Colorimetric paper-based device coated with deep eutectic solvent for chromium (VI) detection
Name: Gripaldi, Fakhry
Organization :
Chulalongkorn University. Faculty of Science
Name: Apichat Imyim
Organization :
Chulalongkorn University. Faculty of Science
Name: Nakara Bhawawet
Organization :
Chulalongkorn University. Faculty of Science
Email :
Nakara.B@chula.ac.th
keyword:
Deep eutectic solvents
LCSH:
Colorimetry
LCSH:
Detectors
LCSH:
Analytical chemistry
Abstract:
Hexavalent chromium, Cr(VI), is one of the heavy metal ions often found in the environment that is
highly toxic and classified as a carcinogen. Rapid screening and onsite monitoring of Cr(VI) using paper-
based analytical devices, which is more economical and energy efficient than the conventional spectrometry,
is thus worth developing. Further, to increase sustainable value in this work, a natural-based deep eutectic
solvent, comprising choline chloride and thymol that makes it an environmentally friendly solvent, is applied
as a coating medium on the test strips for qualitative and quantitative analysis of Cr(VI) for the first time. 1,5-
Diphenylcarbazide was used as an indicator and complexing agent for Cr(VI). The detection was conducted
by using a smartphone equipped with an application for color analyzing. The result shows that at pH 2, the
DES-fabricated test strip can detect Cr(VI) within 10 min. The calibration curve displays good linearity in the
range of 10-5000 ug L with R of 0.9988. The LOD and LOQ of the method are 35 and 118 ug/L, respectively
and the RSDs are less than 7.2%. This developed method could be useful for on-site detection of Cr(VI) in
surface water and other aqueous samples
King Mongkut's University of Technology North Bangkok. Central Library
Address:
BANGKOK
Email:
library@kmutnb.ac.th
Created:
2023
Modified:
2023-05-30
Issued:
2023-05-30
บทความ/Article
application/pdf
BibliograpyCitation :
In Mae Fah Luang University. School of Science. The Pure and Applied Chemistry International Conference 2023 (PACCON 2023) (pp.112-116). Chiang Rai : Mae Fah Luang University
eng
©copyrights King Mongkut's University of Technology North Bangkok
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0.033019 วินาที
Gripaldi, Fakhry
| Title | Contributor | Type |
|---|---|---|
| Colorimetric paper-based device coated with deep eutectic solvent for chromium (VI) detection
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าพระนครเหนือ Gripaldi, Fakhry;Apichat Imyim;Nakara Bhawawet | บทความ/Article |
Apichat Imyim
| Title | Contributor | Type |
|---|---|---|
| Colorimetric paper-based device coated with deep eutectic solvent for chromium (VI) detection
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าพระนครเหนือ Gripaldi, Fakhry;Apichat Imyim;Nakara Bhawawet | บทความ/Article | |
| Method development for determination of brominated flame retardants in high-impact polystyrene using X-ray fluorescence spectrometry
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าพระนครเหนือ Polwat Singhasemanont;Apichat Imyim | บทความ/Article |
Nakara Bhawawet
| Title | Contributor | Type |
|---|---|---|
| Colorimetric paper-based device coated with deep eutectic solvent for chromium (VI) detection
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าพระนครเหนือ Gripaldi, Fakhry;Apichat Imyim;Nakara Bhawawet | บทความ/Article |