摘要
对汽油中非法添加的硅、氯、甲缩醛、苯胺类添加剂的危害、来源进行了分析,提出在没有正式推荐检测方法的标准之前,建议采用单波长色散X射线荧光光谱法、电感耦合等离子体发射光谱法监测硅含量;采用微库仑法测定氯含量;采用氧选择性火焰离子化检测器气相色谱法、红外光谱法、二维气相色谱法以及GC-MS联用法均能对甲缩醛进行定性、定量分析;采用化学发光法监测汽油中的氮含量,待初步确认有苯胺添加时,再采用以上红外光谱、GC-MS联用或气相色谱方法进行定性、定量检测,将其分析结果分别作为判定四种非法添加物的参考依据,以对车用汽油市场进行有力监督。
The hazards and sources of the illegal additives,such as silicon,chlorine,methylamine,in gasoline are analyzed.It is proposed that before the implementation of new formal standards,the silicon contents can be monitored using single- wavelength dispersive X ray fluorescence spectrometry and inductively coupled plasma- atomic emission spectrometry(ICP- AES);the chlorine content can be determined using micro- coulometric method;the methylal can be analyzed qualitatively and quantitatively using oxygen selective flame ionization detector— gas chromatography,infrared spectroscopy,two-dimensional gas chromatography and GC- MS spectrometry;the nitrogen content in gasoline can be determined using chemiluminescence method,and when the addition of aniline is preliminarily confirmed,the above spectra,GC- MS spectrometry or gas chromatography method can be used to qualitatively and quantitatively determine the aniline content,providing basis for determining illegal addition.
出处
《石油库与加油站》
2015年第3期25-28,共4页
Oil Depot And Gas Station
关键词
车用汽油
非法添加物
危害
检测
motor gasoline
illegal additives
hazard
detection
