Colorimetric detection of nitroaromatics using organic photochromic compounds

Vamvounis, George and Sandery, Nicholas (2015) Colorimetric detection of nitroaromatics using organic photochromic compounds. Australian Journal of Chemistry, 68 11: 1723-1726. doi:10.1071/CH15337

Author Vamvounis, George
Sandery, Nicholas
Title Colorimetric detection of nitroaromatics using organic photochromic compounds
Journal name Australian Journal of Chemistry   Check publisher's open access policy
ISSN 0004-9425
Publication date 2015-01-01
Year available 2015
Sub-type Article (original research)
DOI 10.1071/CH15337
Open Access Status Not Open Access
Volume 68
Issue 11
Start page 1723
End page 1726
Total pages 4
Place of publication Clayton, VIC Australia
Publisher C S I R O Publishing
Language eng
Formatted abstract
An organic photochromic compound is explored as a new portable colorimetric sensor for nitroaromatics. This photochromic compound switches from colourless to pink upon exposure to ultraviolet light. In the presence of nitroaromatic explosive derivatives the photoswitching behaviour of the dithienylethene is suppressed, while a potential false positive (toluene) has little effect. The degree of photoswitching inhibition was determined by comparing the integrated visible absorption with the concentration of the analyte to give the pseudo Stern–Volmer constant (KPSV). The KPSVs measured varied from 12900 (p-nitrotoluene) to 236 M–1 (toluene), which were directly related to the analyte absorption at the excitation wavelength.
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2016 Collection
School of Chemistry and Molecular Biosciences
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Citation counts: TR Web of Science Citation Count  Cited 3 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 3 times in Scopus Article | Citations
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