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NON-THERMAL PLASMA JET DEVICE AS SOURCE OF SPATIAL IONIZATION FOR AMBIENT MASS SPECTROMETRY AND METHOD OF APPLICATION
NON-THERMAL PLASMA JET DEVICE AS SOURCE OF SPATIAL IONIZATION FOR AMBIENT MASS SPECTROMETRY AND METHOD OF APPLICATION
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机译：非热等离子体射流作为环境质谱的空间电离源及其应用方法
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摘要
The present invention refers to a device of non-thermal plasma beam acting as a special ionization source for environmental mass spectrometry, which allows the geometry of the plasma beam to be freely adjusted, where the device comprises a non-thermal plasma double-dielectric barrier probe or NTP probe, which generates a non-thermal plasma beam; a high voltage and high frequency transformer circuit to which an external electrode is connected, this latter element being useful for performing a discharge for ionizing a gas that produces plasma, said plasma-generating circuit being simultaneously connected to an AC power source; an inner electrode is grounded and allows the discharge to be performed for the production of plasma; a tank for storing gas useful as a discharge gas, a study sample to which the non-thermal plasma beam is applied and a ion transference adapter for leading the ions produced by the device from the sample, maintaining the vacuum, to a mass analyzer. The aforementio ned device allows live samples (plants) to be directly analyzed without being damaged.
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