Thorough analysis of trace elements present in coal, ash and leachate samples usually involves the use of
atomic emission spectroscopy. Multi-elemental techniques in which many elements can be analyzed
simultaneously are desirable. Elemental concentrations in the coal and ash samples were determined
using Neutron Activation Analysis (NAA). Furthermore, the leachates produced by the laboratory
extraction methods were characterized with Inductively Coupled Plasma Atomic Emission Spectroscopy
(ICP-AES). Quality assurance and quality control were maintained through the use of standard reference
materials, procedure blanks and appropriate trace metal laboratory procedures such selecting ultra-pure
reagents.