SPE-LC-MS联用同时测定环境水样中痕量三聚氰胺和灭蝇胺  

Simultaneous determination of trace melamine and cyromazine in water samples by SPE-LC-MS

作　　者：江鑫[1] 颜流水[1] 罗旭彪[1] 熊萌瑶[1] 任艳[1] 

机构地区：[1]南昌航空大学环境与化学工程学院,南昌330063

出　　处：《分析试验室》2010年第7期15-18,共4页Chinese Journal of Analysis Laboratory

基　　金：国家自然科学基金(20765003)项目资助

摘　　要：建立了一种同时测定环境水样中痕量三聚氰胺和灭蝇胺的固相萃取-高效液相色谱-质谱联用(SPE-LC-MS)分析方法。水样经PCX柱固相萃取,以CN柱为分析柱,V(甲醇)∶V(水)=30∶70为流动相,采用电喷雾正离子模式全扫描,三聚氰胺、灭蝇胺的定量离子分别为m/z127,m/z167,获得的最低检出限分别为0.05,0.08μg/L,对不同来源的实际水样加标回收率为85.2%～104.2%,相对标准偏差为1.5%～5.1%。应用该方法测定了湖水、河水、江水等不同基质实际水样。A sensitive and accurate method for simultaneous determination of melamine and cyromazine in environmental water samples by high performance liquid chromatography-ion trap mass spectrometry (LC-MS) combined with solid phase extraction has been developed. The analytes in water samples were concentrated on a PCX solid phase column,and separated on a CN chromatographic column with methanol-water (30:70,V/V)isocratic elution,followed by an electrospary positive ionization mass spectrometric quantitative detecti...

关 键 词：三聚氰胺 灭蝇胺 固相萃取 液相色谱-质谱联用法 环境水样 

分 类 号：X832[环境科学与工程—环境工程]