We present a new analytical method, which allows the simultaneous analysis of fluorine (F),
chlorine (Cl), bromine (Br), and iodine (I) in geological samples. To account for interferences
of Fe on the spectral lines of F, of Al on Br-lines, and of Ca on I-lines, we prepared four new
halogen-free calibration glasses. The new method is used to analyze various glass
reference materials and crystal-hosted melt inclusions from the Azores. Our results show that
our new method allows reliable and reproducible analyses of all four halogens in silicate …

Hammerli, Johannes and Boroughs, Scott 2023. Interference-free electron probe micro-
analysis of bromine in halogen-bearing minerals and glasses: high-resolution
measurements and quantitative elemental mapping. Journal of Analytical Atomic
Spectrometry,