汽油锰含量测定影响因素的考察

文章运用正交试验设计法，确立原子吸收光谱法测定汽油中锰含量的最佳操作条件，考察了汽油中的烯烃、甲基叔丁基醚、乙醇、其它金属元素以及光照等因素对测定结果的影响。考察结果表明，正常情况下，成品汽油中的烯烃、甲基叔丁基醚、乙醇及其它共存金属元素对锰含量测定结果并无影响，但是光照对锰含量测定结果影响较大，在对含锰汽油进行取样及储存时一定要注意避光。

Influence Factors for the Determination of Manganese Contents in Gasoline

The orthogonal experiment method was used to establish the optimum operating conditions in determining manganese contents in gasoline by using atomic adsorption spectrometry, Factors that influence test results were investigated, including oleflns, MTBE, ethanol and other metal elements in gasoline. Under normal condition, no influence by the above mentioned factors was observed, but illumination greatly affects the test result of manganese content. Therefore, caution must be taken to avoid lights when sampling and storing the gasoline containing manganese.