Determination Of Refractive Indices Of Heavy Metal Ions Solutions To Evaluate Their Concentrations

Document Type : Original Article

Authors

1 Laser Sciences and Interactions department, National Institute of Laser Enhanced Sciences, Cairo University, Egypt

2 Gamaa capmus, Cairo university Campus

Abstract

Surface plasmon resonance (SPR) sensors have advantages of tracing heavy metal ions content and environmental monitoring. In this work, a surface plasmon resonance structure was built. it was based on Kretschmann structure which is cost-effective. The sensing layer were gold thin film deposited by sputtering technique. The resonance angles (θSPR) of heavy metal ions Pb+2, Zn+2 and Cd+2 were shifted to higher values with increasing their content. Complex refractive indices of metal ions were explored. The real and imaginary parts of refractive indices of heavy metal ions were increased while increasing their concentrations. Data curve fitting yields calculated θSPR any unknown concentration of heavy metal ions, also the performance factors were determined which predict the proper use of SPR sensor for different metal ions detection.

Keywords

Egyptian Journal of Chemistry
Volume 65, Issue 132 - Serial Number 13
Special Issue: Chemistry and Global Challenges (Part B)
December 2022
Pages 321-330

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History

  • Receive Date: 03 March 2022
  • Revise Date: 27 July 2022
  • Accept Date: 13 September 2022

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