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...
出处
《分析试验室》
CAS
CSCD
北大核心
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
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
Melamine
Cyromazine
Solid phase extraction
High performance liquid chromatography-mass spectrometry
Environmental water samples
