首页>
外国专利>
RF -only quadrupole improved performance mass filter and a linear quadrupole ion trap with axial ejection
RF -only quadrupole improved performance mass filter and a linear quadrupole ion trap with axial ejection
展开▼
机译:仅射频四极杆性能改进的质量过滤器和带有轴向喷射的线性四极杆离子阱
展开▼
页面导航
摘要
著录项
相似文献
摘要
A RF only quadrupole rod set mass filter or mass analyzer and a linear quadrupole ion trap with axial ejection are disclosed comprising a first pair of rod electrodes, a second pair of rod electrodes and an energy filter. The first pair of rod electrodes is longer than the second pair of rod electrodes. Ions having desired mass to charge ratios experience fringing fields at an exit region which results in the ions possessing sufficient axial kinetic energy to be transmitted by the energy filter. Other ions possess insufficient axial kinetic energy to be transmitted by the energy filter and are attenuated.
展开▼