Determination of Total Sulfur in Fifteen Geological Materials Using Inductively Coupled Plasma-Optical Emission Spectrometry (ICP-OES) and Combustion/Infrared Spectrometry
2012
Abstract
A method for the determination of total sulfur in geological materials by inductively coupled plasma-optical emission spectrometry (ICP-OES) is described. We show that good results were obtained using this method even for sample types with very low ( 100 μg g−1 (except for diabase W-2a, 16% RSD).
Reference materials with lower sulfur contents (< 40 μg g−1) showed much higher RSDs (17–18%). Except for RMs with certified values for sulfur, most data obtained by the combustion infrared detection method generally showed higher concentrations than those measured by ICP-OES and a better RSD (≤ 8% for all materials except DTS-2b).