An analyst decides to calculate the %error as a measure of bias. A certified reference material (CRM) contains a drug metabolite at a concentration of 12.8 micromolar 0.03 micromolar. The analyst tests this sample and obtains a result of 12.1 micromolar 0.1 micromolar. What is the %error (to one decimal place)?

Question

Quizplus · Accepted Answer

The %error is calculated as [(experimental value - true value) / true value] * 100. Here, it is [(12.1 - 12.8) / 12.8] * 100 = -5.5%.

An Analyst Decides to Calculate the %Error as a Measure