采用碳硫分析仪，以多点校正法及国家一级标准物质的标准值与实验值求得校正系数，测定与标准物质基体相类似岩石样品中的硫。经标准物质验证，该方法与单点校正法比较，分析结果重现性较好，测定范围较宽，准确度和精密度均有所提高。
By multi-point correction,the correction factor is calculated based on the experimental value and the standard value of the national standard reference material.Then the determination of sulfur in rock samples similar to the matrix reference material is carried out with carbon and sulfur analyzer.Checked by standard substance,the meth-od demonstrates better reproducibility compared with the single point correction,measurement range widened,accuracy and precision degree increased.
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