摘要
建立了红外光谱法测定 (乙醇 )醚化汽油中残余乙醇的方法 ,运用可调厚度吸收池消除汽油背景所产生的影响。当乙醇质量浓度为 1 5～ 13g/dl时 ,其误差为 0 1%～ 1 5 % ,相对标准偏差小于 3 % ,回收率为 99 2 %～10 1 5 %。该方法简单、快速、准确 。
An infrared spectrophotometric method for determining residual ethanol in etherified FCC gasoline is established.The effect caused by gasoline background is removed by a variable space cell.For ethanol contents within the range of 1 5～13 g/dl,the error is 0 2%～1 6%,RSD is 2%,and recovery is 98 5%～101%.The method is simple,rapid,accurate and also can be applied to the determination of ethanol in unleaded gasoline.
出处
《石油化工》
CAS
CSCD
北大核心
2002年第2期132-134,共3页
Petrochemical Technology
