Journal of Analytical Methods in Chemistry / 2018 / Article / Tab 2

Research Article

High-Precision In Situ 87Sr/86Sr Analyses through Microsampling on Solid Samples: Applications to Earth and Life Sciences

Table 2

Cup configuration schemes of static (a) and dynamic (b) mode measurements.

CupL4L3L2L1C (Far)H1H2H3H4

(a) Static collection mode
(b) Dynamic collection mode
Jump 185Rb85Rb86Sr87Sr88Sr
Jump 2 (main)84Sr86Sr86Sr87Sr88Sr
Jump 387Sr88Sr
Sr double
Combining the measurements from two different magnetic field position (jump 1-2 and jump 2-3 above), it is possible to evaluate two independent 87Sr/86Srdouble defined as follows:. The numbers outside the parentheses are relative to the three different magnetic field positions, the subscript of each isotope refers to the cup on which it is measured, and [88Sr/86Sr]N is the natural ratio (i.e., 8.375209)

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