Browsing Research Output by Author "Takyi-Williams, John"

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Assessment of paper tip angular position, carryover, matrix effects and dried blood spot storage effect on paper spray mass spectrometry

Takyi-Williams, John; Jian, Wenying; Wang, Yang; Tang, Kai (RSC, 2020)

Paper Spray (PS) ionization has been demonstrated extensively for rapid quantitation of pharmaceuticals in dried matrix spots. In this study, experimental and validation parameters of paper spray mass spectrometry were ...
Development and validation of an LC-MS/MS method for the quantification of goserelin in a Pheroid (R) formulation, in simulated intestinal fluid

Takyi-Williams, John; Erasmus, Linné; Hayeshi, Rose; Grobler, Anne (Elsevier, 2020)

The purpose of this reported study was to develop and validate an LC-MS/MS method for the quantification of goserelin in a Pheroid (R) formulation simulated intestinal fluid. Biopharmaceuticals are formulated in drug ...