Sample Weight: 2.00 g
Major elements are determined in rocks by Wavelength Dispersive X-Ray Fluorescence (WDXRF). The sample is fused with lithium metaborate/lithium tetraborate flux and the resultant glass disk is introduced into the WDXRF and irradiated by an x-ray tube. The method also provides a gravimetric Loss on Ignition (LOI).
|Major Elements as Oxides||Concentration (low)||Concentration (high)|
Data will be deemed acceptable if recovery of each major oxide is ±5% at five times the Lower Limit of Determination (LOD) and the calculated Relative Standard Deviation (RSD) of duplicate samples is no greater than 5%.
Central Mineral and Environmental Resources Science Center