微量雾化系统-电感耦合等离子体原子发射光谱法测定汽油中8种有害元素的含量
发布时间：2018-12-11 05:34
【摘要】：用碳链的碳数与汽油样品近似的异辛烷以1∶1的质量比稀释样品,并引入所选高效雾化系统处理。按经优化的操作条件,用电感耦合等离子体原子发射光谱法测定汽油中8种有害元素(铅、铁、锰、铜、磷、硫、氯和硅)的含量。上述8种元素的质量分数在一定范围内与分析信号之间呈线性关系。检出限(3s)在0.34~250μg·kg~(-1)之间。按标准加入法进行回收试验,回收率在94.4%~108%之间,测定值的相对标准偏差(n=7)在1.1%~4.9%之间。
[Abstract]:Isooctane, which is similar to gasoline sample in carbon number of carbon chain, is diluted at 1:1 mass ratio, and the selected high efficiency atomization system is introduced to treat the sample. According to the optimized operating conditions, the contents of eight harmful elements (lead, iron, manganese, copper, phosphorus, sulfur, chlorine and silicon) in gasoline were determined by inductively coupled plasma atomic emission spectrometry (ICP-AES). There is a linear relationship between the mass fraction of the above eight elements and the analytical signal in a certain range. The detection limit (3 s) was between 0.34 渭 g kg~ (-1). According to the standard addition method, the recovery rate was 94. 4% and the relative standard deviation (nong 7) was between 1. 1% and 4. 9%.
【作者单位】： 深圳市计量质量检测研究院;
【基金】：国家标准制定计划能源项目(20141511-T-469) 2015年度广东省质监局科技项目(2015CZ06)
【分类号】：TE626.21;O657.31
，
本文编号：2371973
[Abstract]:Isooctane, which is similar to gasoline sample in carbon number of carbon chain, is diluted at 1:1 mass ratio, and the selected high efficiency atomization system is introduced to treat the sample. According to the optimized operating conditions, the contents of eight harmful elements (lead, iron, manganese, copper, phosphorus, sulfur, chlorine and silicon) in gasoline were determined by inductively coupled plasma atomic emission spectrometry (ICP-AES). There is a linear relationship between the mass fraction of the above eight elements and the analytical signal in a certain range. The detection limit (3 s) was between 0.34 渭 g kg~ (-1). According to the standard addition method, the recovery rate was 94. 4% and the relative standard deviation (nong 7) was between 1. 1% and 4. 9%.
【作者单位】： 深圳市计量质量检测研究院;
【基金】：国家标准制定计划能源项目(20141511-T-469) 2015年度广东省质监局科技项目(2015CZ06)
【分类号】：TE626.21;O657.31
，
本文编号：2371973
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