GGR Handbook of Rock and Mineral Analysis Chapter 2 (Part 3) Analysis of Geological Materials – 3: Determination of Hydrogen, Carbon, Nitrogen, Sulfur, Ferrous Iron, Halogens, Gold and Platinum‐Group Elements

This chapter (Analysis of Geological Materials – 3: Determination of Hydrogen, Carbon, Nitrogen, Sulfur, Ferrous Iron, Halogens, Gold and Platinum‐Group Elements) is a contribution to the Geostandards and Geoanalytical Research Handbook of Rock and Mineral Analysis – an online textbook that is a fully revised and updated edition of A Handbook of Silicate Rock Analysis (P. J. Potts, 1987, Blackie, Glasgow). In Chapter 2, Part 3 (from Section 1 of the handbook dealing with fundamentals of measurement and instrument design) six elements (H, C, N, S, Fe 2+ , Au) and two element groups (halogens, PGE) that require somewhat specialised pre‐concentration techniques prior to determination are examined and reviewed. In turn, these elements often require determination by measurement principles beyond the now well established (XRF spectrometry, ICP‐AES, ICP‐MS), such as element analysers , elemental analyser isotope ratio mass spectrometry , colorimetry , ion‐selective electrode and a suite of non‐destructive nuclear methods , amongst others. Part 3 also covers digestion (alkaline fusion, fire assay and acid digestion) of materials, chemical separation and extraction of element groups in some detail.