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Updated: Aug 27, 2025

Microwave-assisted Intramolecular Dehydrogenative Diels-Alder Reactions for the Synthesis of Functionalized Naphthalenes/Solvatochromic Dyes
Published on: April 1, 2013
Are you still using organic dyes? Colorimetric formaldehyde analysis for true photocatalytic-activity evaluation
Fitri Rizki Amalia1, Mai Takashima1,2, Bunsho Ohtani1,2
1Graduate School of Environmental Science, Hokkaido University, Sapporo 060-0810, Japan. Takashima.m@cat.hokudai.ac.jp.
Abstract:
We report easily available and highly reliable colorimetric formaldehyde analysis using only a spectrophotometer/colorimeter, which enables the evaluation of the "true" photocatalytic activity induced by photoabsorption of a "photocatalyst", compared with gas-chromatographic analyses of gaseous products, even though the reliability of colorimetric organic-dye analysis is much worse under visible-light irradiation.

