Limit of Quantitation testing

The limit of quantitation (LOQ) is the lowest level at which a laboratory can identify and accurately quantitate a drug of interest. This level is determined by linearity studies performed either annually, or as procedural changes occur. STL has the option of reporting results utilizing LOQ testing. That means we can report the presence of a drug down to our lowest ability to accurately identify and quantitate a drug, even if that level drops below standard industry cutoffs.