1. Pyrrolo-[3,2-b]pyrroles for Photochromic Analysis of Halocarbons.
- Author
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Jia-Ying Wu, Cheng-Han Yu, Jung-Jung Wen, Chiou-Ling Chang, and Man-kit Leung
- Subjects
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PHOTOCHROMIC materials , *HALOCARBONS , *LIGHT sources , *TRIPHENYLAMINE , *PYRROLE derivatives , *QUANTITATIVE chemical analysis - Abstract
Dramatic photochromic-change of 2,5-bis-(triphenylamine)-substituted N,N'-diphenylpyrrolo-[3,2-b]pyrrole ( l) with halocarbons provides an effective route for halocarbon analysis with the naked eye. The visual detection range can reach as low as 10-4 ∼ 10-5 M ( l-10 ppm) in CH3CN. This method can also be applied for detection of CHC13 in water. Fabrication of a disposable paper test cartridge along with using a camera flash as the light source allows on-site halocarbon detection in seconds. Quantitative analysis for CHCl3 and CH2C12 have also been demonstrated. [ABSTRACT FROM AUTHOR]
- Published
- 2016
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