Search Results

You are looking at 1 - 2 of 2 items for :

  • Author or Editor: Suresh Aggarwal x
  • Chemistry and Chemical Engineering x
  • Refine by Access: All Content x
Clear All Modify Search

Abstract  

A concentrated ammonium nitrate solution (80 g L−1) generated during reprocessing of nuclear fuels was analysed for determining trace amounts of actinides present prior to its reuse or disposal. A gamma spectrometric method using HPGe detector was developed for the assay of uranium (U), plutonium (Pu) and americium (Am) using a suitable calibration sample. The results obtained were validated by liquid scintillation counting. The presence of significant amounts of plutonium necessitated repeated purification of ammonium nitrate before its reuse.

Restricted access

Abstract  

Instrumental neutron activation analysis (INAA) was employed to determine concentrations of 19 elements (As, Ba, Br, Ce, Co, Cr, Cs, Fe, K, La, Mn, Na, Nd, Rb, Sc, Sm, Th, Yb and Zn) in a large number (55) of tea samples (from market as well as virgin tea leaves) from different locations in India (Assam, Darjeeling, Munnar and Kangra). The results obtained in the present work are compared with those reported in literature. The concentration levels, their variations with collection locations and the correlations among different elements in these samples are discussed.

Restricted access