Abstract
Abstract The contents of Fe and Zn in natural sphalerite samples were determined by chemical titration and spectroscopic techniques (portable X-ray fluorescence (P-XRF) spectrometry, electron probe microanalysis with energy dispersive spectroscopy (EPMA−EDS), electron probe microanalysis with wavelength dispersive spectroscopy (EPMA−WDS), and time-of-flight secondary ion mass spectrometry (ToF-SIMS)). Besides, the distribution of Fe and Zn in sphalerite samples was analyzed by imaging EPMA-WDS and imaging ToF-SIMS. The results show that Fe and Zn contents determined by each spectroscopic technique have good linearity with those determined by chemical titration (R2>0.77), and the R2 values of Fe are generally greater than those of Zn. The imaging analysis results revealed that Fe and Zn are not uniformly distributed in the sphalerite.
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