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Sol-gel-derived optical coatings for determination of chromate

Zevin, Michael and Reisfeld, Renata and Oehme, Ines and Wolfbeis, Otto S. (1997) Sol-gel-derived optical coatings for determination of chromate. Sensors and Actuators B Chemical 39 (1-3), pp. 235-238.

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Abstract

An optical probe for chromate ion has been obtained by the sol-gel technique by depositing a porous film containing the reagent diphenylcarbazide on a glass support. Changes in the absorption of light as a result of the (irreversible) formation of a purple product between chromate and the reagent inside the sol-gel are monitored. The detection limit for chromate anion is as low as 1 ppb, but only ...

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Item Type:Article
Date:1997
Institutions:Chemistry and Pharmacy > Institut für Analytische Chemie, Chemo- und Biosensorik > Chemo- und Biosensorik (Prof. Otto S. Wolfbeis)
Identification Number:
ValueType
10.1016/S0925-4005(97)80210-9DOI
Keywords:Chromate sensors; Optical coatings; Sol-gel technique
Subjects:500 Science > 540 Chemistry & allied sciences
Status:Published
Refereed:Unknown
Created at the University of Regensburg:Unknown
Owner: Petra Gürster
Deposited On:20 May 2011 06:31
Last Modified:13 Mar 2014 17:22
Item ID:20795
Owner Only: item control page

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