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Quadrupole ion trap mass spectrometer having two axial modulation excitation input frequencies and method of parent and neutral loss scanning
Quadrupole ion trap mass spectrometer having two axial modulation excitation input frequencies and method of parent and neutral loss scanning
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机译:具有两个轴向调制激励输入频率的四极离子阱质谱仪以及母体和中性损耗扫描方法
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摘要
Disclosed is quadrupole ion trap mass spectrometer of the type including a ring electrode and end caps defining a trap volume and including means for introducing sample ion into the ion trap and means for applying voltages to the electrodes. Further included are means for applying two resonant excitation waveforms at two different frequencies and two different voltages between the end cap electrodes to simultaneously excite multiple ions in the ion trap volume.
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