Pyrrolo-[3,2-b]pyrroles for Photochromic Analysis of Halocarbons

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• 作者：Jia-Ying Wu ; Cheng-Han Yu ; Jung-Jung Wen ; Chiou-Ling Chang ; Man-kit Leung
• 刊名：Analytical Chemistry
• 出版年：2016
• 出版时间：January 19, 2016
• 年：2016
• 卷：88
• 期：2
• 页码：1195-1201
• 全文大小：479K
• ISSN：1520-6882

文摘

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.