Repeat, fast, and high-resolution mapping of fine-scale trace element distribution in pyrite and marcasite by LA-Q-ICP-MS with the Aerosol Rapid Introduction System (ARIS)

Abstract

The minor and trace element composition of minerals provides critical insights into a variety of geological processes. Multi-element mapping by laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) is an important technique applied for this purpose and although the method is rapidly advancing, there remains a fundamental compromise between This is the peer-reviewed, final accepted version for American Mineralogist, published by the Mineralogical Society of America.The published version is subject to change. Cite as Authors (Year) Title. American Mineralogist, in press.

Multiplexed elemental bioimaging with quadrupole ICP-MS and high-frequency laser ablation systems

“…5,8 Commercial retailers of "fast washout" laser ablation systems use combination systems in their highest end offerings, with companies advertising single digit millisecond washout times. 6,7,9 While fast washout cells solve the issue of blurring, they can make aliasing problems more severe.…”

“…Blur is the result of overlapping plume volumes between consecutive ablation shots, as the flow is too slow to evacuate the ablation cell of distinct ablated masses. The solution to blurring is improving mass transfer to the plasma, which is currently achieved through high speed ablation cell design, 5 sample introduction devices, 6 or a combination of both. 7 This is an active area of research with the newest cell designs using double inlet gas flows containing helium and argon to maximise outlet flow.…”