摘要
以正三辛胺萃取分离干扰离子 ,采用 Pb( ) -水杨基荧光酮 -溴化十六烷基三甲铵显色体系测定原油中的痕量铅。考查了正三辛胺萃取分离干扰离子的条件和测定条件。表观摩尔吸光系数为 1 .2 5× 1 0 5L· mol- 1· cm- 1 ,合成样品回收率 1 0 0 .7% ,原油分析结果的相对标准偏差小于 3.3%。
Trioctylamine was used to extract and separate interfering ions. The Pb(Ⅱ) salicylfluorone cetyltri methylammonium bromide coloured system was used to determine trace lead in crude oils.The measuring and extraction conditions were studied.The apparent molar absorptivity is 1.2×10 5 L·mol -1 ·cm -1 .The extraction recovery of synthetic sample is 100.7% and the relative standard deviation of analytical results is less than 3.3%.
出处
《化学试剂》
CAS
CSCD
1999年第4期220-222,共3页
Chemical Reagents
关键词
正三辛胺
萃取
铅
原油
SAF
CTMAB
测定
trioctylamine,extraction,salicylfluorone cetyltrimethylammonium bromide coloured system,trace lead,crude oil