摘要
本文阐述了化学发光法测定液体烃类中氮含量方法的基本原理，考察了方法的精密度、准确度以及测量线性范围，并与微库仑测氮法做了比较。化学发光法具有操作简单、分析快速、选择性好、抗干扰能力强等许多优点。可直接测定液体烃类中含量为０．１～５０００ｍｇ／Ｌ的氮，单次样品分析周期３～５ｍｉｎ，各项分析指标达到ＡＳＴＭ分析方法要求。
A chemiluminescent method for determination of nitrogen in liquid hydrocarbons is proposed in the paper. The fundamentals, accuracy, precision and the linear measuring range of the method are presented. In comparison with the microcoulometric method for nitrogen analysis, the proposed method has the advantages of simple operation, rapid determination, good selectivity and high antiinterference ability, etc. The nitrogen content ranged from 0.1 to 5000 mg/L in liquid hydrocarbon samples can be determined directly in 3～5 minutes. All the analytical indices can meet the ASTM specification.
出处
《石油炼制与化工》
CAS
CSCD
1995年第3期50-55,共6页
Petroleum Processing and Petrochemicals
关键词
元素分析
氮含量
原油
石油馏分
化学发光
测定
organic matter, elemental analysis, luminescence,nitrogen content, crude oil, petroleum fraction
