...LC-Quattro Micro Mass联用仪对该化合物的质谱条件进行了优化,采用注射泵直接进样,优化后的参数如下:Capillary(毛细管电压):-3.0 kv;Cone(锥孔电压):-40 v; Collision(碰撞能):18 ev;其定量离子反应为:m/z 299.5 →m/z 255.2。
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通过控制电压偏置方向,利用电渗流效应使毛细管多孔导电膜的刻蚀成功率得到显著提高。
The success rate of porous conductive membrane preparation on fused silica capillary was greatly improved by control of voltage bias and electroosmosis effect.
我们发现,类似的结果,可仅仅是确保电力的直接接触样品内的熔石英毛细管和高电压供应。
We find that similar results can be obtained merely by ensuring a direct electrical contact between the analyte inside a fused-silica capillary and the high-voltage supply.
研究了毛细管电泳的相关基础理论,从理论上较深入地研究分析了传统的毛细管高电压分离模式与本文所采用的低电压运动梯度场分离模式。
The relative theory of capillary electrophoresis has been studied. The low voltage separation models with moving grade electrical field and high voltage separation model have been discussed.
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