Using multiple micro-analytical techniques for evaluating quantitative synchrotron-XRF elemental mapping of hydrothermal pyrite

Abstract

We report results of an analytical technique comparison study between synchrotron-XRF, EPMA and LA-ICPMS using samples of naturally occurring hydrothermal pyrite.

Atomic spectrometry update – a review of advances in environmental analysis

“…A review (221 references) of the application to studies of ore deposits of various synchrotron X-ray techniques emphasised 317 their importance as tools to study trace element distributions at μm and smaller scales, the structure and chemistry of poorly-crystalline ore materials and the chemical nature of the fluids that give rise to ore formation. In an assessment of the accuracy of synchrotron XRFS, quantitative elemental maps of pyrite samples were compared 318 to those obtained by LA-ICP-MS and EPMA. A well-characterised, highly homogeneous pyrite sample (CX-15) was employed as the RM for quantification.…”

Current Techniques and Applications of Mineral Chemistry to Mineral Exploration; Examples from Glaciated Terrain: A Review

“…The use of laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) for characterization of mineral chemistry has grown since its first application to geological media [116,117]. Its application for characterizing mineral chemistry has grown in the past 15 years to include a broad range of minerals [118][119][120][121][122][123][124][125][126][127][128][129].…”

Fast and high spatially resolved multielemental mapping of otoliths using IR&UV-femtosecond laser ablation-ICP-TOFMS

“…SXFM provides excellent limits of detection (near ng g −1 for some analytes), but relatively long analytical times, ranging from a few hours to 24 hours in extreme cases (depending on the instrument conguration it can exceed 8 h for surfaces >4 mm 2 ). 22 Furthermore, this technique require large-scale installations and it has the limitation of mainly detecting masses greater than 40 Ca. On the other hand, EPMA achieves high spatial resolution (<3 mm), 23 but it provides relatively poor detection limits (>10 mg g −1 ), not allowing the detection of some key analytes frequently present in otoliths (e.g., Li, Mn, Ba, Se).…”