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| 高效液相色谱-电喷雾电离质谱法测定地表水中微囊藻毒素 |
| Determination of MC-LR in Surface Water by High Performance Liquid Chromatography with Mass Spectrometry |
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| 中文摘要: |
| 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0.02 μg/L，空白水样加标回收率为（96.25.4）%。 |
| 英文摘要: |
| 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 （96.25.4）%. |
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