摘要
采用ICP-AES法同时测定了大庆油田水中钾、钠、钙、镁4种常量金属元素的含量。研究了酸度效应及元素间的相互干扰情况,并进行了检出限、准确度及精密度试验。结果表明,线性相关系数大于0.999,加标回收率为95.4%~104.0%,相对标准偏差为0.56%~1.14%,均可满足要求。方法具有样品前处理简单,干扰少,测定快速、准确,可进行多元素同时分析等优点,适用于油田水中钾、钠、钙、镁等常量元素的测定。
A method for the simultaneous determination of K、 Na、 Ca、Mg constant metal elements in Daqing oil field water by ICP-AES was presented.The acidity effect and mutual interference between elements were studied;the detection limits,accuracy and precision test were carried on.The experimental results showed the linear correlative coefficient were higher than 0.999,the recoveries were in the range of 95.4%～104.0% and the relative standard deviation（RSD）values were 0.56 %～1.14 %,all can meet the requirements.The method had the advantages of simple sample preparation,less interference and fast,accurate and simultaneous multi-element analysis and so on,which was suitable for the analysis of K、 Na、 Ca、Mg constant elements in oil field water.
出处
《化学工程师》
CAS
2011年第2期25-27,共3页
Chemical Engineer
关键词
ICP-AES
油田水
钾
钠
钙
镁
ICP-AES
oil field water
potassium
sodium
calcium
magnesium
