Multielement Analysis

Aqua-regia Digeston
Aqua-regia digestion of samples (using hydrochloric and nitric acids) is suitable for many exploration applications, and offers a cost-effective multielement analysis solution for most base-metals explorers. Where high recovery of refractory elements such as Ti, Sn, Zr, W is required, the HF/multiacid digestion is used.
Zarazma Scheme ME-01 Elements and Detection Limits (in ppm):



HF/Multi-acid
Where more refractory mineral species are targeted, a multi-acid digest involving hydrofluoric, perchloric, nitric and hydrochloric acids is performed. Hydrofluoric acid dissolves the silicate matrix of the sample, making metallic elements available for dissolution.
Zarazma Scheme ME-02 Elements and Detection Limits (in ppm):
Rare-Earth Elements
Rare-earth elements (REE) are relatively refractory, and require intensive extraction techniques. Samples for REE analysis are analysed at LabWest, using microwave-assisted multiacid digestion, and ICP-MS determination.
Zarazma Scheme ME-02 Elements and Detection Limits (in ppm):

Instrumental Determination
Solutions are analysed for metal content by Inductively-Coupled Plasma Optical Emission Spectrometry (ICP-OES). Samples containing base-metals in excess of 0.1% will be reanalysed by Zarazma’s ore-grade analysis technique.