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PRIVILEGED DOCUMENT FOR REVIEW PURPOSES ONLY
Electronic Supplementary Information (ESI): Fig. S1 and Table S1
‐1.00
‐0.80
‐0.60
‐0.40
‐0.20
0.00
0.20
0.40
0.60
0.80
1.00
Na/Li= 0.5
Na/Li= 1Na/Li= 5
Na/Li= 10
Mg/Li= 0.5
Mg/Li= 1
Mg/Li= 5
Mg/Li= 10 Al/Li= 0.5
Al/Li= 1
Al/Li= 5
Al/Li= 10
Fig. S1 (a) The matrix effects of elements. L‐SVEC standard solution doped with Na (diamonds),
Mg (squares) and Al (triangles) are compared with pure L‐SVEC solution. The result
indicates that the influence of matrix effect for a wide range of element/Li ratio using the
analytical method presented here is negligible. (b) Intensity‐dependent instrumental shift
of measured Li isotope ratios using an APEX‐IR desolvating system for sample
introduction. 2.5‐20 ng ml‐1 L‐SVEC solutions were bracketed with 5 ng ml‐1 solution using
the on‐peak blank correction. The mean value of δ7Li and the error bars (2SD) were also
shown. Symbols represent mean values of at least five duplicates.
-1.00
-0.80
-0.60
-0.40
-0.20
0.00
0.20
0.40
0.60
0.80
1.00
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5
Towards machinebackground
Calibrator: L‐SVEC (5 ng ml‐1)
Intensity ratio of sample/calibrator
Δ‰
to bracketing calib
rator
(b)
δ7Li (‰
, L‐SVEC
) (a)
PRIVILEGED DOCUMENT FOR REVIEW PURPOSES ONLY
Table S1. Comparison of the δ7Li values of this study with published work
2SE = 2SD/√n SIS= Stable Introduction System