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    • Keywords


      Cerium; O-phenylenediamine; Ce(IV) in steel; spectrophotometry

    • Abstract


      A simple and sensitive spectrophotometric method for the determination of cerium(IV) was developed. Witho-phenylenediamine cerium(IV) gives an orange-red colour with an absorption maximum at 470 nm. The system obeys Beer’s law in the range 7 ppm to 500 ppm with a molar absorptivity of 2·4 × 103l mol−1 cm−1 and Sandell sensitivity of 0·5 ppm. Interference by various ions was studied. This method was used for the determination of cerium in low-alloy steels and the results are in good agreement with the certified values.

    • Author Affiliations


      Archana Agrawal1 K Chandra Sekhar1 L P Pandey1

      1. Analytical Chemistry Division, National Metallurgical Laboratory, Jamshedpur - 831 007, India
    • Dates

  • Bulletin of Materials Science | News

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      Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
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      Posted on July 25, 2019

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