A radio frequency glow discharge ionization device
A technology of radio frequency glow discharge and radio frequency, which is applied in the field of mass spectrometry analysis and detection, can solve the problems of low detection accuracy and achieve the effects of wide detection application range, low detection limit and high ion introduction efficiency
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[0020] refer to Figure 1 to Figure 3 , the present invention provides a radio frequency glow discharge ionization device, comprising a closed ionization chamber 21, a mass spectrometer 36 and a device main body located in the ionization chamber 21, the device main body includes a copper block with a copper block 3 The fixed seat 9 and the sample fixed seat 10 equipped with the sample 4, the copper block 3 is connected to the ground potential with the ionization chamber bottom plate 24 through a wire, and the DC self-bias voltage conducting with the external circuit 28 is provided on the said ionization chamber bottom plate 24 Connecting port 29, DC bias voltage The connecting port 29 connects the DC bias voltage generated by the radio frequency discharge to the external circuit 28, and adjusts the radio frequency discharge by adjusting the external circuit 28 to change the DC bias voltage. The sample 4 is connected to the radio frequency power supply 26 through the radio freq...
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