摘要
采用固相萃取-高效液相色谱-电喷雾电离质谱法测定饮用水源地地表水中痕量微囊藻毒素MC-LR,优化了色谱和质谱条件,以甲醇/水(含0.1%甲酸)混合溶液(体积比60∶40)为流动相,选择定量离子质荷比(m/z)996.3。方法在0.100 mg/L～2.00 mg/L范围内线性良好,检出限为0.02μg/L,空白水样加标回收率为(96.2±5.4)%。
Trace Microcystin（MC-LR） in drinking source surface water was determined by HPLC-ESI-MS with solid phase extraction and test conditions of chromatography and mass was optimized.The results showed that mobile solution [V（methanol）∶V（water）=60∶40] which contained 0.1% methanoic acid,selective quantity ion（m/z=996.3）.Good linearity of the method was obtained in range from 0.100 mg/L to 2.00 mg/L,the detection limits 0.02 μg/L,spiked standard recoveries of blank samples（96.2±5.4）%.
出处
《环境监测管理与技术》
2011年第6期65-67,共3页
The Administration and Technique of Environmental Monitoring
