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Journal of Analytical Chemistry

, Volume 63, Issue 9, pp 897–901 | Cite as

A silver optical sensor based on 5(p-dimethylaminobenzylidene)rhodanine immobilized on a triacetylcellulose membrane

  • S. Rastegarzadeh
  • V. Rezaei
Articles

Abstract

An optical sensor has been proposed for the determination of silver by spectrophotometry. The sensor was prepared by immobilizing 5(p-dimethylaminobenzylidene)rhodanine on a transparent triacetylcellulose membrane. The effect of different variables on the response of the sensor was studied and the optimum conditions were established. The sensor responded linearly in the range 1.8–55.6 μM of silver with a limit of detection of 0.8 μM and a response time range of 8–10 min depending on the concentration of the silver ions. The presented optode is reversible and stable if stored in water for more than one month without reagent leaching. The relative standard deviation for seven replicated measurement of 4.6 and 37 μM silver was 3.15 and 2.76%, respectively. The sensor was successfully applied to the determination of silver in a silver sulphadiazine cream, an ore sample, and a radiology film.

Keywords

Optical Sensor Rhodanine Formate Buffer Silver Sulphadiazine Radiology Film 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© MAIK Nauka 2008

Authors and Affiliations

  • S. Rastegarzadeh
    • 1
  • V. Rezaei
    • 1
  1. 1.Department of Chemistry, College of SciencesShahid Chamran UniversityAhvazIran

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