摘要
介绍了一种测定油田化学剂和石油产品中硫、氮含量的仪器分析方法。试验内容包括制作外标工作曲线 ,考察方法的精密度和准确度 ,测定不同类型油田化学剂和石油产品样品中的硫、氮含量。结果表明 :该方法线性范围宽、检测限低 ,测定结果的相对标准偏差不大于 4 % ,对于硫或氮浓度大于 30mg/l的样品 ,相对误差在± 3%以内。该方法具有操作简捷、准确度高、重复性好以及高选择性等优点 ,适用于油田化学剂和石油产品中硫、氮含量的测定。
The paper introduces a method to determine sulfur/nitrogen content in oilfield chemicals or oil products by sulfur/nitrogen elemental analyzer. The test includes: making measurement curve, evaluating repeatability and accuracy, and determining sulfur/nitrogen content of selected samples of chemicals and oil products. The result shows: the method has wide linearity range, low analytic limit. The relative standard deviation of measure is less than 4% and the relative error is within ±3% when sample concentration is larger than 30mg/l. The method has the following advantages: simple operation, high accuracy, good repeatability and excellent selectivity. It is suitable for determining sulfur/nitrogen content in oilfield chemicals or oil products.
出处
《石油与天然气化工》
CAS
CSCD
北大核心
2004年第2期132-134,共3页
Chemical engineering of oil & gas
关键词
油田化学剂
石油产品
硫
氮
测定方法
化学发光法
chemiluminescence,determination, oilfield chemicals, oil products, sulfur/nitrogen content
