3.6. Accuracy and precision of the assay procedure
Instrument precision was determined by replicate injections of
the resolution solutions. The relative standard deviation
(%RSD) for the tetracycline peak response was below 1.0%.
USP precision is defined as the degree of agreement among
individual test results when the method is applied repeatedly
to multiple samplings of a homogenous sample, and accuracy
is, the closeness of test results to the true value.