Journal
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
Volume 17, Issue 3, Pages 189-196Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/b110180n
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An ICP-MS with an octopole reaction/collision cell was used for the multi-element determination of trace elements in sea-water. The use of a reaction or collision gas, respectively, reduces serious spectral interferences from matrix elements such as ArCl+ or ArNa+. On introducing He or H-2 to the cell, detection limits of 0.3 ng L-1 for U to 20 ng L-1 for Fe and As were determined in 10-fold diluted sea-water. The trace elements V, Cr, Mn, Fe, Co, Ni, Cu, Zn, As, Mo, Cd, Pb and U were determined in diluted sea-water samples (certified reference material: NASS-5, SLEW-3) with a trueness of +/- 20% to the certified values. For most of the elements an accuracy of better than 19% was achieved with no sample pre-treatment other than simple dilution.
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