Nik Chetwyn, Ph.D.

Enhancing Efficiency of Trace Metals Analysis using a Validated Generic ICP-OES Method
Tuesday, March 31, 2015
The presence of residual metallic impurities is an issue of increasing importance and concern to regulatory agencies around the word to ensure patients’ safety. Several common metals such as cadmium, lead, mercury, and ... read more
Byproducts of Commonly Used Coupling Reagents: Origin, Toxicological Evaluation and Methods for Determination
Thursday, February 20, 2014
Ensuring the purity and high quality of drug substances is a critical aspect of drug development and patient safety. Organic impurities are described in international guidelines read more
Two-Dimensional HPLC in Pharmaceutical Analysis
Friday, December 27, 2013
The interest in two-dimensional HPLC (2DLC) in pharmaceutical analysis has been increasing quickly in recent years as illustrated by recent journal publications and presentations at analytical conferences. Although two-... read more

Articles by Nik Chetwyn, Ph.D.