A fast and sensitive ICP-MS assay for the determination of 230 Th in marine sediments

Details A fast and sensitive ICP-MS assay for the determination of 230 Th in marine sediments A fast and sensitive ICP-MS assay for the determination of 230 Th in marine sediments

Jul 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991gecoa..55.2075s&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 55, Issue 7, pp.2075-2078

Computer Science

3

Scientific paper

Inductively-coupled Plasma-Mass Spectrometry (ICP-MS) with quadrupole mass analysis provides a very fast and sensitive method for the determination of 230 Th in marine sediments. A detection limit of 0.40 DPM (36 femto-moles) was determined for the method with a precision of better than 3% (1 ). This is comparable to that of -counting methods, but samples can be analyzed in five minutes, compared to up to two weeks counting time for -spectrometry. Sample preparation is also significantly simplified, thus providing a relatively quick and easy method for the determination of "excess" 230 Th accumulation histories in deep-sea sediment cores.

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