摘要
采用改进的溶剂萃取方法对轮古常渣及其组分中的金属钒卟啉进行分离。结果表明,从轮古常渣中分离出的卟啉钒的质量分数为18.5%,从轮古常渣正庚烷可溶质和沥青质中分离出的卟啉钒的质量分数分别为68.0%和9.2%。用紫外-可见光谱对萃取出来的金属钒卟啉和甲磺酸脱金属后得到的游离卟啉进行表征。结果表明,轮古常渣及其正庚烷可溶质和沥青质中的金属钒卟啉主要是初卟啉。对轮古常渣中的游离卟啉进行基质辅助激光解吸电离飞行时间质谱分析证明,轮古常渣中的金属钒卟啉主要是初卟啉。
Metallic vanadyl porphyrins were isolated from LGAR and its components via improved solvent extraction. 18.5% of vanadium in LGAR, 68.0% of vanadium in LGAR mahene and 9.2% of vanadium in LGAR asphahene were isolated by this method. The vanadyl porphyrin and base porphyrin were characterized by UV-Vis spectrophotometry, and the vanadyl porphyrin in LGAR was mainly ETIO, which was confirmed by matrix assisted laser desorption ionization time of flight mass spectroscopy （ MALDI-TOF MS） of base porphyrin.
出处
《应用化学》
CAS
CSCD
北大核心
2007年第10期1187-1192,共6页
Chinese Journal of Applied Chemistry
