Determination of 60Co in environmental water samples by a hydrous magnesium oxide filter

✍ Scribed by Jem-Mau Lo; Jun-Der Lee

• Publisher: Elsevier Science
• Year: 1996
• Tongue: English
• Weight: 293 KB
• Volume: 318
• Category: Article
• ISSN: 0003-2670
• DOI: 10.1016/0003-2670(95)00457-2

✦ Synopsis

Preconcentration of trace '%o and analogous radionuclides by adsorption on MgO for their determination in environmental water samples exemplified by seawater was demonstrated. An adsorption filter fabricated by coating hydrous MgO onto a round piece of a densely twilled nylon cloth was used to facilitate separation of the radionuclides adsorbed. The MgO adsorption filter was sealed in a polyethylene column. The water sample analyzed was pumped through the column where the radionuclides could be efficiently adsorbed onto the filter. Thereafter the radionuclides enriched filter was transferred to a high-purity germanium detector connected with a multichannel analyzer for y-spectrometry.

The novel preconcentration technique proves to be fast and efficacious and detection of 60~ becomes highly sensitive because of the very large enrichment factor.