Element content measuring method based on resonance and non-resonance double lines
An element content, non-resonant technology, applied in the direction of material excitation analysis, thermal excitation analysis, etc., can solve the problems of poor detection accuracy and narrow range of element linear calibration curves, and achieve small measurement errors, avoid self-absorption effects, and high linearity degree of effect
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[0019] In this embodiment, the tablet sample obtained by mixing and pressing KBr and CuO powders is taken as an example, and the Cu element (with a content range of 0.01-60wt%) is quantitatively analyzed therein. Of course, it can also be used to measure other mixed elements. A self-absorption immune LIBS technology based on resonance and non-resonance doublets of the present invention is further described in conjunction with the accompanying drawings, which specifically includes the following steps:
[0020] (1) Select Cu element as the element to be measured, the spectral line with a wavelength of 324.75nm is used as the first spectral line of the resonant doublet, the spectral line with a wavelength of 327.40nm is used as the second spectral line of the resonant doublet, and the wavelength is The spectral line at 515.32nm is used as the first spectral line of the non-resonant doublet, and the spectral line with a wavelength of 521.82nm is used as the second spectral line of ...
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