In the previous article (Part 22, American Laboratory, June/July 2006), the details behind the lack-of-fit (LOF) test were discussed. read more

The previous two installments have discussed the issue of nonideal recovery, a problem that occurs in many analytical methods. read more

The previous several articles have dealt with calibrationstudy design and calibration-diagnostic procedures. read more

This installment will present the sixth and last in this series of calibration examples. read more

This real-world example of calibration diagnostics involves the ion-chromatographic behavior of phosphoric acid; phosphate is the actual analyte form that is measured by the instrument. read more

This month’s installment is the third in a series of real-world examples of calibration diagnostics. read more

This article is the first in a series of real-world calibration analyses. read more

The previous article (American Laboratory, Nov 2003) introduced the subject of calibration diagnostics. read more