15.6 – Developments in Clean Lab Practices

Design and main principles of clean geochemical lab are reviewed with a focus on practical aspects of the clean room operations. Also discussed are techniques for reduction of air pollution by aerosols, purification of water and reagents that lead to low total procedural blank which is essential for obtaining accurate analytical data for small geochemical samples. Examples of low blank geochemical analysis and/or contamination issues include Pb analysis in zircons, Sr analysis by micromilling, meteoritic Ag, Re–Os, high-field-strength elements and W, and Li.

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