Measurement of uranium in phosphate fertilizers for groundwater contamination employing X-ray and γ-ray spectroscopic techniques

Atomic spectrometry update: review of advances in the analysis of metals, chemicals and materials

“…The other paper of interest was prepared by Singh et al who determined U in diammonium phosphate-based fertilizers using X-ray and gamma-ray techniques . 141 There was a concern that any U present in the fertilizers could potentially contaminate the groundwater and so these workers undertook a study to determine the extent of this. Surprisingly, about 30% of the fertilizer samples collected from various places in Punjab State, India, contained between 100 and 200 mg kg −1 U, whereas the rest had <50 mg kg −1 .…”