Sequential chemical separations and multiple ion counting ICP-MS for 241Pu–241Am–237Np dating of environmental collections on a single aliquot

Determination of ultra-low level 241Am in soil and sediment using chemical separation and triple quadrupole inductively coupled plasma mass spectrometry measurement with He-NH3 as collision-reaction gas

“…), rapid and accurate measurement of 241 Am in the environmental samples can be achieved due to the relatively low detection limit of the mass spectrometric detection. At present, the mass spectrometric techniques include inductively coupled plasma mass spectrometry (ICP-MS) [8,[11][12][13][14][15][16], resonance ionization mass spectrometry (RIMS) [17], thermal ionization mass spectrometry (TIMS) [3,12,18] and accelerator mass spectrometry (AMS) [19][20][21]. Compared to ICP-MS, other mass spectrometric techniques are not widely employed for the measurement of environmental samples due to their less availability and high cost.…”

Determination of 241Am in Environmental Samples: A Review

“…The detection limit of 241 Am was as low as 0.017 fg/g [ 139 ]. Theoretically, the precision of isotope ratio measurements and the LOD can be improved by more than one order of magnitude using multiple-ion-collector ICP-MS (MC-ICP-MS) compared to single-collector ICP-MS. Steven J. Goldstein [ 140 ] applied MC-ICP-MS for the isotopic measurements of 241 Am in environmental samples and obtained accurate results with a low detection limit of 1.4 fg. Table 9 compares the limits of detection (LODs) obtained with different types of ICP-MS instruments for 241 Am measurement.…”

Determination of ultra-trace level241Am in soil by triple-quadrupole inductively coupled plasma-mass spectrometry with mass-shift mode combined with chemical separation

“…). Commonly used mass spectrometric techniques include inductively coupled plasma mass spectrometry (ICP-MS), 1,8,11–14 resonance ionization mass spectrometry (RIMS), 15 thermal ionization mass spectrometry (TIMS) 3,16 and accelerator mass spectrometry (AMS). 17–20 Owing to the lower availability and high cost, RIMS, TIMS and AMS are not widely used for 241 Am measurement compared to ICP-MS. As a preferable instrument, the rapid measurement capability of ICP-MS makes it attractive in the measurement of actinides and is widely used to analyze ultra-trace level 241 Am in environmental samples.…”