Mayr, Torsten 
; Werner, Tobias
Alternative Links zum Volltext:DOIVerlag
| Dokumentenart: | Artikel |
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| Titel eines Journals oder einer Zeitschrift: | The Analyst |
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| Verlag: | ROYAL SOC CHEMISTRY |
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| Ort der Veröffentlichung: | CAMBRIDGE |
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| Band: | 127 |
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| Nummer des Zeitschriftenheftes oder des Kapitels: | 2 |
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| Seitenbereich: | S. 248-252 |
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| Datum: | 2002 |
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| Institutionen: | Chemie und Pharmazie > Institut für Analytische Chemie, Chemo- und Biosensorik |
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| Identifikationsnummer: | | Wert | Typ |
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| 10.1039/b106298k | DOI |
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| Stichwörter / Keywords: | SENSOR; MEMBRANE; ELECTRODES; OPTODES; ZINCON; |
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| Dewey-Dezimal-Klassifikation: | 500 Naturwissenschaften und Mathematik > 540 Chemie |
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| Status: | Veröffentlicht |
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| Begutachtet: | Ja, diese Version wurde begutachtet |
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| An der Universität Regensburg entstanden: | Ja |
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| Dokumenten-ID: | 73210 |
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Zusammenfassung
We describe the development of an optical sensing scheme for the determination of copper(II) in drinking or waste water. It is based on static quenching of the fluorescence of Lucifer Yellow immobilised on anion exchanger particles, embedded in a hydrogel. The sensing membrane allows the determination of copper(II) in the 0.01 muM (0.63 mug l(-1)) to 100 muM (6300 mug l(-1)) concentration range ...
Zusammenfassung
We describe the development of an optical sensing scheme for the determination of copper(II) in drinking or waste water. It is based on static quenching of the fluorescence of Lucifer Yellow immobilised on anion exchanger particles, embedded in a hydrogel. The sensing membrane allows the determination of copper(II) in the 0.01 muM (0.63 mug l(-1)) to 100 muM (6300 mug l(-1)) concentration range with an outstanding high selectivity. The change in fluorescence on exposure to a significant concentration of 31 muM (2000 mug l(-1)) is -60%. The response time is concentration dependent and varies from 100 to 3 min. Selectivity was investigated by the separate solution method; mercury(II) was found to be the only interferent. The effect of pH was evaluated in the range 4.0-6.8. The application of the sensing membrane as a single shot test was demonstrated using microtitre plates for copper(II) determination in tap water samples.
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