An analytical syringe used to inject samples into a GC has an absolute uncertainty of 0.05 uL. What is the relative uncertainty of a 2.5 uL injection?

Question

Quizplus · Accepted Answer

The relative uncertainty is calculated as the absolute uncertainty divided by the measurement value, multiplied by 100 to get a percentage. So, for a 2.5 uL injection with an absolute uncertainty of 0.05 uL, the relative uncertainty is (0.05 uL / 2.5 uL) * 100 = 2%. None of the provided options match this calculation.

An Analytical Syringe Used to Inject Samples into a GC