| Abstract: | Abstract The determination of sulfur and chlorine in coal and oil shale standards is reported. The procedure utilizes a sample decomposition using Eschka's mixture, followed by an ion chromatographic determination. The method was tested on samples with concentrations ranging from 0.004 to 0.35 percent chlorine and 0.05 to 4.4 percent sulfur. Results compare favorably with values reported in the literature. The detection limits for chlorine and sulfur were 10 and 13 ppm and the precision of the method expressed as a percent relative standard deviation was 6 percent and 5 percent for chlorine and sulfur respectively. Using this method a single operator can prepare and analyze as many as 30 samples per day. |
