Abstract
AbstractIn modern geochemical laboratoriesX‐tay fluorescence spectrometry (XRFS) is a highly favoured analytical technique particularly when the need for geochemical data is relatively important. The analytical procedures currently employed involve XRFS analysis of lithium borate fused glass disc of rock samples, followed by computer generated mathematical corrections for the usual matrix effects. A significantly different procedure, free from mathematical matrix effect corrections, is presented here. After the lithium borate fusion step, the ground fusion product is dissolved by thorough mixing with an aqueous suspension, of a strong acid cation exchange resin in H+ form. During the caution exchange dissolution, the cautions originally present in the sample are transfered quantitatively and uniformly to the resin pahse. The oven‐dried resin heads coated as a thin film on a strip of adhesive paper are analysed. The routine performance of the procedure is illustrated with the data accumulated on six major elements (Al, Fe, Ca, Mg, K and Ti) in five international rock reference samples during a period of one academic year. The main feature of this analytical method is the production of high quality geochemical data without any need for mathematical corrections.
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