Letter to the Editor: Query related to publication titled “Study of uranium contamination of ground water in Punjab state in India using X-ray fluorescence technique” by Alrakabi et al. 294:221–227 (2012), doi:10.1007/s10967-011-1585-x
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I have read the above cited paper very carefully. Undersigned has been involved in the analysis of geological materials and hydro-geochemical reconnaissance surveys attached with mobile geochemical laboratories in different parts of India for uranium exploration activities of Atomic Minerals Directorate for Exploration and Research. Based on my experiences gained so far, I would like to share some of my observations as follows:
Sampling: Water sample should be free from suspended matter/sediments. It should be filtered before collection and its preservation, For preservation of water samples, it should be acidified with AR nitric acid to pH 1.
Time interval between water collection and analysis (for un-acidified water samples).Water sample should be analysed on the same day.
It is practically impossible to control changes in the contents of major...