Abstract
This chapter focuses on a mini-symposium that was held at the Eastern Analytical Symposium, Fall, 1987, New York City. Trace metal speciation refers to ability to define which forms of a given metal or organometal appear in a particular sample, and at what precise quantitative levels such chemicals occur. Various methods have evolved, such as gas chromatography (GC)–mass spectrometry (MS), GC–plasma emission spectrometry, high performance liquid chromatography (HPLC)–mass spectrometry, HPLC–inductively coupled plasma (ICP) emission, HPLC–ICP–MS, and GC/HPLC–direct current plasma (DCP) emission. All of these have shown extreme promise for specific metal species in specific sample matrices, with varying degrees of selectivity, specificity, and sensitivity (as well as detection limits). They have all provided analysts with a choice of methods for trace metal species determination, and there is no clearcut formula for deciding which specific hyphenated or direct methods of analysis are best for a particular metal species in a particular sample matrix.
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