Tag Archives: precision

Determination of Fat in a Snickers’ Bar

In a recent paper [J. Chem. Educ. 1997, 74, 1108-1111], Snow, Dunn and Patel describe the experimental determination of fat in a SnickersTM candy bar.  The fat was removed by extraction with supercritical CO2, with the sample weighed before and … Continue reading

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What is the Difference Between Repeatability, Reproducibility, Accuracy, and Precision?

In an editorial published in American Laboratory (November 2000), Ira S. Krull states that in “any science, then, one must present at the very outset evidence of repeatability, reproducibility, accuracy, and precision (emphasis added).” Suppose you are preparing a manuscript … Continue reading

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