To solve the problem of low mass ion discrimination of conventional ion funnel and optimize ion transmission, a new ion funnel with a quadrupolar electrode configuration, was evaluated, based on the theoretical modeling, in this paper. The theoretical model was constructed by using the SIMION and the performance characteristics of the new ion funnel was simulated systematically by calculating the ion trajectory under different operating conditions. As the low mass ions lossed at the exit of ion funnel was mainly due to the opposite phase radio frequency (RF) voltage applied to the front and rear electrodes, the new ion funnel configuration rotated RF by 90 degrees and suppressed the axial potential wells near the ion funnel exit. The transmission efficiencies of the conventional and the new ion funnels for ions with low mass to charge ratio (m/z) were compared under the same operating conditions. The results showed that the new ion funnel configuration could improve the transmission efficiency by about 10% as compared to the conventional ion funnel in the m/z range below 70 while there was little differences in the transmission efficiency for high m/z ions.

为了解决传统离子漏斗的低质量离子识别问题并优化离子传输，本文基于理论模型对具有四极电极配置的新型离子漏斗进行了评估。利用SIMION构建了理论模型，通过计算不同工况​​下的离子轨迹，系统地模拟了新型离子漏斗的性能特性。由于在离子漏斗出口处丢失的低质量离子主要是由于施加在前后电极上的反相射频 (RF) 电压，新的离子漏斗配置将 RF 旋转了 90 度并抑制了附近的轴向势阱。离子漏斗出口。传统和新型离子漏斗对于低质荷比离子的传输效率（m / z ) 在相同的操作条件下进行比较。结果表明，与传统离子漏斗相比，新的离子漏斗配置在m / z范围低于 70 时可以提高约 10%的传输效率，而对高m / z离子的传输效率几乎没有差异。