Performance of second generation ICP-TOFMS for (multi-)isotope ratio analysis: a case study on B, Sr and Pb and their isotope fractionation behavior during the measurements

Abstract

The second generation ICP-TOFMS is subject to IIF that does not follow the known mass dependent fractionation laws and is possibly caused by non-mass dependent fractionation and/or multiple fractionation processes with varying contributions.

Isotopic ratio analysis of individual sub-micron particles via spICP-TOFMS

“…In previous research, ICP-TOFMS has been characterized for isotope ratio analysis in terms of mass bias and isotope fractionation for light, mid-mass, and heavy isotopes: B, Sr, and Pb. 21 This study found that precision for 208 Pb/ 206 Pb was around 0.1% when a 1000 ng mL −1 solution of Pb was analyzed. 21 In other work, RSD values from 0.41–0.06% were obtained for analysis of 208 Pb/ 206 Pb ratios from Pb standards with concentrations from 1 to 100 ng mL −1 .…”

“…21 This study found that precision for 208 Pb/ 206 Pb was around 0.1% when a 1000 ng mL −1 solution of Pb was analyzed. 21 In other work, RSD values from 0.41–0.06% were obtained for analysis of 208 Pb/ 206 Pb ratios from Pb standards with concentrations from 1 to 100 ng mL −1 . 22 Both previously mentioned studies used 10 s acquisition times.…”