Quantitation and Nontargeted Identification of Pesticides in Spinach Extract with GC×GC–TOF-MS
May 1st 2019In this study of pesticides in spinach extract, the use of GC×GC–TOF-MS is demonstrated as a methodology to overcome matrix interferences and quickly quantify suspected contaminants. The approach also allows nontargeted analysis using a single sample injection.
Determination of the Relative Prevalence of Lurasidone Metabolites in Urine Using Untargeted HRMS
May 1st 2019For lurasidone treatment adherence testing, an untargeted high-resolution mass spectrometry method was employed, using known positive human urine samples to identify the lurasidone metabolites and their relative abundance in urine.