Pyrrolo-[3,2-b]pyrroles for Photochromic Analysis of Halocarbons
Journal
Analytical Chemistry
Journal Volume
88
Journal Issue
2
Pages
1195-1201
Date Issued
2016
Author(s)
Abstract
Dramatic photochromic-change of 2,5-bis(triphenylamine)-substituted N,N'-diphenylpyrrolo-[3,2-b]pyrrole (1) 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 (1-10 ppm) in CH3CN. This method can also be applied for detection of CHCl3 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 CH2Cl2 have also been demonstrated.
SDGs
Type
journal article