Naslov
Optical Sensor for Continuous Monitoring of Silver Ion

Autori
I. Murkovic, I. Oehme, T. Ferber, G. J. Mohr, O. S. Wolfbeis

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
XIV Meeting of Croatian Chemists / 3rd Symposium on Instrumental Analysis / - , 1995

Skup
XIV Meeting of Croatian Chemists / 3rd Symposium on Instrumental Analysis

Mjesto i datum
Pečuh, Mađarska; Zagreb, Hrvatska, 1995

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
acridine dye; chemical sensors; PVC membrane

Sažetak
A lipophilic acridine dye is used as silver-sensitive chromo-ionphore within a plasticized PVC membrane. The membrane selectively responds to silver ion in the concentration range from 50 mu M to 10 mM, giving a reversible colour change from blue to pink, with response times of the order of 2 min. The acridinium dye acts as both the recognition element and the chromo-ionophore. Its long-wave absorption band is at around 680 nm, which makes it compatible with existing LED light sources and diode lasers. A lipophilic octadecyl side chain renders it highly lipophilic and this prevents its leakage out of the PVC membrane.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

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