Determination of radium-226 in phosphate fertilisers and gypsum by gamma-ray spectrometry
by Maria Del Carmen Godinez, Jose Luis lturbe, Eduardo Ordonez, Marcos Solache-Rios
International Journal of Environment and Pollution (IJEP), Vol. 8, No. 1/2, 1997

Abstract: The ²²⁶Ra isotope was determined in 17%, 20% and 46% phosphate fertilisers and in gypsum. The fertiliser samples were dissolved in 10% nitric acid solution. The barium sulfate method was used for the precipitation of ²²⁶Ra. An alkaline fusion method was used to separate the ²²⁶Ra from the gypsum. The ²²⁶Ra concentrations present in these materials were between 10^-4 and 10^-5µg g^-1. Neutron activation analysis was also used to verify the presence of uranium in the fertilisers and gypsum; the uranium concentration in gypsum was 4.85 ± 1.72 ppm.

Online publication date: Tue, 15-Sep-2009

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

 
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Environment and Pollution (IJEP):
Login with your Inderscience username and password:

Username:        Password:          Forgotten your password?

Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email subs@inderscience.com