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<p>Zirconium based alloys and special grade stainless steels like alloy D9 are the structural materials used for manufacturing different reactor core components of PHWRs &amp; BWRs and FBRs respectively. The present paper describes a method developed for the first time for quantifying Fe, Cr, Sn, Ni, Cu in Zr based alloys and Al, Cu, Co, Mn, Si, Mo, Ni, Cr, Ti in alloy D9 materials using high resolution continuum source atomic absorption spectrometer (HR CS AAS). Studies are done to optimize analytical conditions which includes detection limits, precession &amp; accuracy, effect of matrix, flame &amp; burner conditions, selection of sensitive and interference free analytical lines for varied concentration range. A good comparison is seen between the results of HR-CS-AAS and conventional Line Source Atomic Absorption Spectrometer.</p>

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Chemical qualification of thermal and fast breeder reactor core structural materials using high resolution continuum source atomic absorption spectrometer

  • 期刊论文

  • 发表日期：

    2026年1月27日

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  • Y. Balaji Rao,
  • Zahida Begum,
  • P. V. Nagendra Kumar,
  • Dinesh Srivastava

摘要

Zirconium based alloys and special grade stainless steels like alloy D9 are the structural materials used for manufacturing different reactor core components of PHWRs & BWRs and FBRs respectively. The present paper describes a method developed for the first time for quantifying Fe, Cr, Sn, Ni, Cu in Zr based alloys and Al, Cu, Co, Mn, Si, Mo, Ni, Cr, Ti in alloy D9 materials using high resolution continuum source atomic absorption spectrometer (HR CS AAS). Studies are done to optimize analytical conditions which includes detection limits, precession & accuracy, effect of matrix, flame & burner conditions, selection of sensitive and interference free analytical lines for varied concentration range. A good comparison is seen between the results of HR-CS-AAS and conventional Line Source Atomic Absorption Spectrometer.