Dr.John Fetzer

Most users of GC-MS and LC-MS assume those techniques do many things that the instruments do not do. For example, that a high “goodness of fit” is definitive. These instruments are commonly weak in several key areas and especially for certain chemical compound ...

Instrumental gas chromatography is an analysis are widely used to determine purity, the impurities, and the degradation products of pharmaceuticals. The focus of most validation work is on the methodology, the standard operating procedure (SOP). But validation ...

Instrumental liquid chromatography is an analysis widely used to determine purity, impurities, and the degradation products of pharmaceuticals. The focus of most validation work is on the methodology, the standard operating procedure (SOP). But validation of ...

Instrumental liquid chromatography is an analysis are widely used to determine purity, the impurities, and the degradation products of pharmaceuticals. The focus of most validation work is on the methodology, the standard operating procedure (SOP). But validat ...

Instrumental gas chromatography is an analysis are widely used to determine purity, the impurities, and the degradation products of pharmaceuticals. The focus of most validation work is on the methodology, the standard operating procedure (SOP). But validation ...

Any laboratory that supports products for sale or use in the United States must follow Good Laboratory Practices (GLP), a comprehensive system that guarantees the validity of results. If you work in pharmaceuticals, chemicals, petrochemicals, and environmental ...

Statistics can be used to monitor critical variable in the running of a procedure and in the performance of the instrumentation that performs it. By applying Nelson’s rules this data can be evaluated as performing as expected or performing in ways that are sta ...