The accuracy of the method was tested by analyzing
analytical standards containing tin at 2 levels (0.5 and 5
ppm). Amounts of tin found for the 0.5 and 5 ppm standards
were 0.505 and 5.12 ppm, while repeatability relative stan-dard deviations (RSD) were 2.42 and 1.87%, respectively.
RSD for unspiked samples varied from 2.2 (fruit cocktail)
to 5.8% (peeled tomato).