【摘要】 提出采用燃烧氧化偶联离子色谱法测定甲醇中硫含量的新方法 .方法通过离子色谱法直接测量甲醇中所含的硫在燃烧氧化过程生成的SO2 被I-3 氧化生成的SO2 -4 来测定甲醇中总硫含量 ,具有选择性高 ,快速 ,准确 ,灵敏等优点 .检测限为 2 .8× 10 -6% .更多还原

【Abstract】 A new method has been developed for determination of sulfur content in methanol by using combustion oxidation coupled ion chromatography. It uses ion chromatography to directly determine sulfate radical, a substance that is formed by oxiolation by I - 3 of SO 2 derived from the sulfur in methanol during combustion oxidation, so as to determine the whole sulfur content in methanol. This method has high selectivity, speediness, accuracy, delicacy and so on. The detectability is 2.8×10 -6 %.更多还原