CAJ | 학술논문

通过酸化-吹气-吸收装置来提取液体石油产品中的硫化氢,在酸性条件下,硫化物与过量的碘作用,剩余的碘用硫代硫酸钠滴定,由硫代硫酸钠溶液所消耗的量,间接求出硫化氢的含量.经过一系列实验发现:该分析方法加标回收率在94.48%～97.36%,标准偏差0.0159,变异系数2.05%,分析结果表明数据的准确度和精密度较好,取得了满意的效果.
통과산화-취기-흡수장치래제취액체석유산품중적류화경,재산성조건하,류화물여과량적전작용,잉여적전용류대류산납적정,유류대류산납용액소소모적량,간접구출류화경적함량.경과일계렬실험발현:해분석방법가표회수솔재94.48%～97.36%,표준편차0.0159,변이계수2.05%,분석결과표명수거적준학도화정밀도교호,취득료만의적효과.
The sulfureted hydrogen was extracted from the petroleum products by means of Acidification - Nitro- gen blowing -Absorption Unit. In acidic condition, the sulfured reacted with excessive iodine. The surplus iodine was titrated with sodium thiosulfate. Based on the amount of sodium thiosulfate consumed, the sulfureted hydrogen content was calculated indirectly. After a series of experiments, it was found that the recovery was 94.48 ～ 97.36%, the standard deviation was 0.015 9 and coefficient of variation was 2.05% using this analysis method. The analysis data were accurate and precise.