What is synchrotron XRF?
Synchrotron radiation X-ray fluorescence ( SXRF ) spectrometry is an X-ray fluorescence ( XRF ) spectrometry that uses synchrotron radiation ( SR ) for excitation source. SR-excited total reflection X-ray fluorescence ( TXRF ) has been developed for trace elements, chemical state, and surface analyses.
What is X-ray fluorescence method?
XRF (X-ray fluorescence) is a non-destructive analytical technique used to determine the elemental composition of materials. XRF analyzers determine the chemistry of a sample by measuring the fluorescent (or secondary) X-ray emitted from a sample when it is excited by a primary X-ray source.
How does micro X-ray fluorescence work?
Micro X-ray fluorescence (µXRF) is an elemental analysis technique which allows for the examination of very small sample areas. Like conventional XRF instrumentation, Micro X-ray Fluorescence uses direct X-ray excitation to induce characteristic X-ray fluorescence emission from the sample for elemental analysis.
How accurate is XRF?
As a rule of thumb the accuracy “out of the box” given by the difference between XRF value and assay can be as good as 0.2 to 0.5% for gold in jewelry, whereas the accuracy out of the box for minerals can be within 20% of the lab assay or even more if the sample is not homogeneous enough.
Why is synchrotron radiation produced?
Synchrotron radiation is produced by charged particles traveling at relativistic speeds forced to travel along curved paths by applied magnetic fields. High-speed electrons circulating at constant energy in synchrotron storage rings produce X-rays.
What elements can XRF detect?
XRF (and particularly EDXRF) is ideally suited for very fast qualitative elemental analysis. Typically all elements from sodium through to uranium can be detected simultaneously, with good quality spectra obtained in seconds/minutes.