Ultra-low-level determination of (236)U in IAEA marine reference materials by ICPMS and AMS.
The development of analytical procedures for the measurement of ultra-low levels of (236)U in marine samples using high-resolution inductively coupled plasma mass spectrometry (HR-ICPMS) and accelerator mass spectrometry (AMS) techniques are discussed and results are presented for IAEA reference materials-marine sediments (IAEA-135, 306, 384 and 385), marine biota (IAEA-134 and 414) and seawater (IAEA-381), collected in areas affected by nuclear reprocessing plants and nuclear weapons tests. The obtained minimum detection limit of the (236)U/(238)U atom ratio was 1x10(-8) for AMS and 1x10(-6) for HR-ICPMS.
Lee
S H
SH
International Atomic Energy Agency, Marine Environment Laboratory, Monaco, France. s.lee@kriss.re.kr
Povinec
P P
PP
Wyse
E
E
Hotchkis
M A C
MA
D013058:Mass Spectrometry / Q000379:methods*; D012015:Reference Standards; D012623:Seawater / Q000032:analysis*; D012680:Sensitivity and Specificity; D014501:Uranium / Q000032:analysis*; D014875:Water Pollutants, Radioactive / Q000032:analysis*
D014875:Water Pollutants, Radioactive; D014501:Uranium