上海大学环境与化学工程学院环境污染与健康研究所.2.华南师范大学化学与环境学院.3.广州禾信分析仪器有限公司
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郭长娟, 张绍飞, 黄正旭, 等. 飞行时间质谱仪四极杆射频信号放大器的研制[J]. 分析测试学报, 2011,30(8):927-932.
Development of a Radio Frequency Signal Amplifier for Radio Frequency Quadrupole in Time-of-flight Mass Spectrometer[J]. 2011,30(8):927-932.
根据自制质谱仪需求研制了一种射频放大装置,由放大电路模块和耦合线圈构成,将其与射频信号发生装置结合用以驱动射频四极杆。该射频放大器可将射频信号放大30倍,为自制射频四极杆提供共振频率1.4 MHz,射频电压峰峰值电压Vp-p可调范围0~600 V的射频信号。自制四极杆用于传输大气压下离子源产生的离子从离子源至工作在高真空中的垂直引入式飞行时间质量分析器,应用该放大器,可传输质荷比为30~600 amu的离子。
According to the demand of home-made spectrometer,a radio frequency(RF) signal amplifier was developed.This RF signal amplifier,composed of amplifier circuit module and coupling coil,could combine with RF signal generator to drive the radio frequency quadrupole(RFQ).The amplifier can carry out 30 times magnification,and provide resonance frequency of 1.4 MHz,peak to peak voltage Vp-p of 0-600 V RF signals for self-made RFQ.The developed RFQ was used to transmit the ions generated in atmospheric pressure ion source to a home-made desktop orthogonal-in-jection time-of-flight mass analyzer.With the radio frequency signal amplifier described in this paper,the ions with m/z equal to 30-600 amu can be transmitted efficiently.
射频四极杆射频信号放大器飞行时间质谱仪
radio frequency quadrupole(RFQ)RF signalmagnifiertime-of-flight mass spectrometer(TOF MS)
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