Integrated full-angle excitation source for atomic fluorescence spectrometer
An atomic fluorescence, all-angle technology, applied in the field of analytical instruments, can solve problems such as the influence of instrument measurement sensitivity, achieve good measurement precision, improve measurement sensitivity, and compact structure.
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Embodiment 1
[0022] image 3It is a schematic diagram of the structure of the integrated full-angle excitation source of the present invention, which is composed of an excitation light source module and a ring atomizer module. The excitation light source module is a microwave coaxial resonant cavity, including an outer conductor 1, a microwave input port 2, a microwave antenna 3, an inner conductor 4, an outer gas inlet 5, a middle pipe 6, a middle gas inlet 7, an inner pipe 8, Inner layer gas inlet 9, standard sample tube 10, standard sample inlet 11; outer conductor 1, inner conductor 4, middle tube 6, inner tube 8, standard sample tube 10 are nested and coaxial in order from outside to inside, The inner conductor 4 , the middle tube 6 , the inner tube 8 and the sample tube 10 are flush at the outlet end face, and the inner conductor 4 , the middle tube 6 , the inner tube 8 and the standard sample tube 10 and the outer conductor 1 form a microwave in a nested coaxial structure. Resonant...
Embodiment 2
[0034] Figure 4 It is another structural schematic diagram of the integrated full-angle excitation source of the present invention, which is composed of an excitation light source module and a ring atomizer module. The excitation light source module is a microwave coaxial resonant cavity, which is the same as the excitation source in Embodiment 1, and will not be repeated here.
[0035] In this embodiment, the annular atomizer is arranged outside the outer conductor 1 of the microwave coaxial resonator above the microwave input port 2, and the guide ring 12 is located outside the outer conductor 1 above the microwave input port 2; the side surface of the guide ring 12 is designed There are a working gas inlet 13, a sample inlet 14 and a shielding gas inlet 15; the inner side of the guide ring 12 is sequentially installed with an inner layer guide pipe 16, a middle layer guide pipe 17 and an outer layer guide pipe 18, and the inner layer guide pipe 18. 16. The middle layer gu...
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Abstract
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