Low-level technetium-99 determination in soil samples by ICP-MS

Uchida Shigeo
Tagami Keiko

Publication date

November 2001

Abstract

A simple separation method was developed for 99Tc in soil samples as follows. After incineration, Tc in a soil sample was volatilized in a combustion apparatus for 3 h at 1000C and trapped in deionized water. The trap solution was passed through an extraction chromatographic resin (TEVA resin, Eichrom Ind. Inc.) and the resin was washed with 2M HNO3. Technetium was eluted with 5mL of 8M HNO3 and this fraction was evaporated to dryness at <70C. The residue was dissolved in 5mL of 2% HNO3 solution and the 99Tc concentration was measured by inductively coupled plasma mass spectrometry (ICP-MS). The numbers of separation steps were less than those of acid leaching methods and the recoveries were usually higher than 60%. However, for the case of...

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Low-level technetium-99 determination in soil samples by ICP-MS

Abstract

Extracted data

Low-level technetium-99 determination in soil samples by ICP-MS

Abstract

Extracted data

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