TABLE I

Accuracy of Elemental Tungsten Quantification

Blanks with Tungsten Spike at:
0 μg/L W0.5 μg/L W10 μg/L W180 μg/L W
Tungsten (μg/L)<0.1*0.510.0180.0
Accuracy (%)**–100100100

  • ↵* Less than LOQ (0.1 μg/L).

  • ↵** Accuracy (%) = [(W of Spiked – W of None)/Theoretical W] × 100.