CHEM 463 Methods for Environmental Trace Analysis
This course is essential for chemistry majors wishing to pursue further studies or professional career in environmental monitoring, at quality control industries or regulator settings. The course introduces the students to a spectrum of analytical methodologies that can applied towards the identification or determination of natural and anthropogenic species occurring in traces within the atmosphere, waters, soils and wastes, and their control by regulations and standards. Two generic trace analysis workflows are presented and distinguished according to "organic" or "inorganic" nature of the target species. The course particularly builds on separation and spectroscopic knowledge acquired through analytical chemistry courses to develop an understanding of the methodologies to be applied for studying environmental samples. Emphasis is placed on appropriating the sampling methods, sample handling and pre-treatment procedures to (i) matrix type (e.g., solid, liquid, and gas), (ii) sample abundance, (iii) stability of target species, (iv) interferences, and to making important considerations with regard to sample hazardousness and exposure risks. Selection of the most appropriate analytical characterization tool will be surveyed based on selectivity, sensitivity, detection limit, quantitation limit, and overall economic suitability.