摘要
采用0.01mol/L 的 H_2SO_4作为吸收液,采集大气中的低级脂肪胺。用离子色谱法可同时测定七种低级脂肪胺。本文着重研究了离子色谱法的分离条件、干扰情况及样品的富集条件。本方法的回收率达85%以上,变异系数<7.7%,检出限的范围相应为0.01～0.04mg/m^3(甲胺—三乙胺),本方法已应用于大气中低级肪脂胺类的测定。
It is possible to determine seven low-grade alpyl:nines sinultarecu sly by ion chromatography 0.01mol/L H_2SO_4 was used as absorbent to concentrate low-grade alkyl amines in the air.The ion chromatographic conditions influencing factors and sample concentration specifical addressed in this article,With this method the recovery and variance were>85% and <7.7% respectively.The minimum determinable limitation was 0.01～ 0.04mg/m^3(methylamine-triethylamine).The method has been used to de- terminate the alkyl amines in the air.
出处
《石油化工环境保护》
1993年第1期44-48,60,共6页
Environment Protection in Petrochemical Industry
