Use of resonance ionization mass spectrometry for determination of Cs ratios in solid samples.
A method to quantitatively determine the radionuclidic content of complex samples with a minimum of chemical preparation has been under development at the National Institute of Standards and Technology (NIST). Based on earlier studies with resonance ionization mass spectrometry (RIMS), a graphite furnace was added to the RIMS system at NIST. Efficiency determinations for 133Cs in solution and isotopic ratio measurements of cesium (135Cs/137Cs) for an NIST nuclear burn-up sample using RIMS and for a sediment natural matrix standard using thermal ionization mass spectrometry are presented.
Karam
L R
LR
Physics Laboratory, National Institute of Standards and Technology, Gaithersburg, MD 20899-8462, USA. lisa.karam@nist.gov
Pibida
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McMahon
C A
CA