Technical Notes:
1.A Chromo-Fluorogenic Synthetic "Canary" for co Detection. The chromo-fluorogenic detection of carbon monoxide in air has been achieved. This probe shows exceptional sensitivity and selectivity in its sensing behavior in the solid state. A color response visible to the naked eye is observed at 5 ppb of co, and a remarkably clear color change occurs from orange to yellow at the onset of toxic co concentrations (100 ppm) in air.
References:
1. J. Am. Chem. Soc., 2014, 136, 11930- 11933.
Strem
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