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2017-01-16Zeitschriftenartikel DOI: 10.18452/18445
Light-Activated Sensitive Probes for Amine Detection
Valderrey, Virginia
Bonasera, Aurelio
Fredrich, Sebastian cc
Hecht, Stefan cc
Mathematisch-Naturwissenschaftliche Fakultät
Our new, simple, and accurate colorimetric method is based on diarylethenes (DAEs) for the rapid detection of a wide range of primary and secondary amines. The probes consist of aldehyde- or ketone-substituted diarylethenes, which undergo an amine-induced decoloration reaction, selectively to give the ring-closed isomer. Thus, these probes can be activated at the desired moment by light irradiation, with a sensitivity that allows the detection of amines at concentrations as low as 10exp−6 M in solution. In addition, the practical immobilization of DAEs on paper makes it possible to detect biogenic amines, such as cadaverine, in the gas phase above a threshold of 12 ppbv within 30 seconds.
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DOI
10.18452/18445
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