Elemental Analysis

Varian Flame Atomic Absorption Spectrometry

Flame atomic absorption spectrometry is a method of analysis in which liquid samples or acid digestions / dissolutions of solid materials may be analysed for trace metals and some metalloids. The advantages of the technique include its simplicity, speed of analysis and lack of interferences. It does however have detection limits that, in many cases, are inferior to both ICP-AES and to ICP-MS and a linear range that spans only 2 orders of magnitude. The other disadvantage of the technique is that it is capable of determining only one element at a time. Despite these short-comings, it is the most simple and efficient method for quick "look-see" analyses and is ideally placed to check any odd or suspicious results obtained by the other, more complex techniques ICP-MS or ICP-OES.

Gas Chromatography - Atomic Fluorescence System

This can be used to obtain Hg speciation data in liquid samples or, once a suitable extraction protocol has been applied, in solid samples. The instrumental detection limit is usually below 0.1 µg/L and the linear range can span 4 or 5 orders of magnitude.