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考察能量色散X射线荧光光谱法与微库仑法在出口汽油硫含量项目检验中测定结果的差异;采用能量色散X射线荧光光谱法与氧化微库仑法对部分出口汽油中的硫含量进行了检验,并对测定结果进行了对比与分析;两种方法都有较高的精密度,光谱法所测结果普遍大于库仑法所测的对应结果;样品中硫含量值越小,两方法所测定硫含量间的相对偏差值越大。
The differences of energy dispersive X-ray fluorescence spectrometry and microcoulomb method in the test of export gasoline sulfur content were investigated. The content of sulfur in some gasoline was tested by energy dispersive X-ray fluorescence spectrometry and oxidation microcoulometry. And compared and analyzed the results; both methods have higher precision, the results measured by spectrometry are generally greater than the corresponding results measured by coulometry; the smaller the sulfur content in the sample, the sulfur content measured by the two methods The greater the relative deviation between.