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      https://www.ias.ac.in/article/fulltext/boms/017/07/1467-1471

    • 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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