TABLE IV

Interday Precision of Elemental Tungsten Quantification

DaySyringe Extract with Tungsten Spike at:
0 μg/L W1 μg/L W10 μg/L W100 μg/L W
Tungsten (μg/L)16.27.115.8102.1
26.17.015.7102.0
36.27.215.8100.9
Precision (RSD, %)11<11