Pregled bibliografske jedinice broj: 271537
Optode membrane for continuous measurement of silver ions
Optode membrane for continuous measurement of silver ions // Mikrochimica acta (1966), 121 (1995), 1-4; 249-258 doi:10.1007/BF01248254 (međunarodna recenzija, članak, znanstveni)
CROSBI ID: 271537 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Optode membrane for continuous measurement of silver
ions
Autori
Murković, Ivana ; Oehme, Ines ; Mohr, Gerhard J. ; Ferber, Tomislav ; Wolfbeis, Otto S.
Izvornik
Mikrochimica acta (1966) (0026-3672) 121
(1995), 1-4;
249-258
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
silver sensor ; optical sensors ; chromo-ionophore ; spectrophotometry ; PVC membrane
Sažetak
An optical sensor (optode) membrane for continuous monitoring of silver ion is presented. It is composed of plasticized poly(vinyl chloride) (PVC), a silver- sensitive chromo-ionophore, and a lipophilic berate salt acting as an anionic site. 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. Hence, the operational lifetime exceeds 1 week, without any changes in the work function.
Izvorni jezik
Engleski
Znanstvena područja
Kemija
POVEZANOST RADA
Ustanove:
Fakultet kemijskog inženjerstva i tehnologije, Zagreb
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus
