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Aerosol smooth beam-splitting device

An aerosol and smoothing technology, applied in measurement devices, analytical materials, material analysis by electromagnetic means, etc., can solve the problems of signal fluctuation of analytical equipment, affecting the accuracy and precision of isotope analysis results, etc. Potential hazards, eliminate potential hazards of mutual contamination, smooth jitter effect

Inactive Publication Date: 2011-09-07
NORTHWEST UNIV(CN)
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  • Abstract
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Problems solved by technology

However, all current laser ablation technologies have no effective measures to perform aerosol beam splitting and ensure that the trace element content and isotope composition of the two aerosols after beam splitting are completely consistent with the aerosol composition before beam splitting
In addition, the lasers used in the laser ablation technology are all pulsed lasers, which cause the aerosol generated during the ablation of the sample to have pulse jitter, causing fluctuations in the signal of the analysis equipment, which will seriously affect the accuracy and accuracy of the isotope composition analysis results. precision

Method used

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Embodiment Construction

[0026] Figure 1, figure 2 As shown, the aerosol smooth beam splitter of the present invention is composed of a homogenization chamber 4 and an aerosol ratio beam splitter 2, and an air inlet 1 and a lead-out pipe 3 are arranged on the homogenization chamber 4, wherein the air inlet 1 Arranged along the tangent line of the homogenization chamber 4, the outlet pipe 3 is inserted from the center of the homogenization chamber 4; the aerosol proportion divider 2 includes an inlet pipe 11 connected to the outlet pipe 3, and the far end of the inlet pipe 11 is connected by a three-way joint. Divided into two branches, the inner walls of the two branches are equipped with flexible pipes 9, and respectively have a first outlet 8 and a second outlet 10, and the first outlet 8 and the second outlet 10 are respectively led to subsequent analysis instruments, in which An elliptical sleeve 7 is installed on the outer wall of a branch, and a screw 6 with scale and an arc-shaped extrusion pie...

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Abstract

The invention discloses an aerosol smooth beam-splitting device which comprises an air inlet, a homogenizing chamber, an aerosol proportion distributor and air outlets, wherein the external end of the air inlet is connected to the outlet port of a laser denudation chamber while the internal end of the air inlet is guided into the homogenizing chamber from a side part along a non-axial direction; after the aerosol is homogenized, the aerosol is discharged to the aerosol proportion distributor through a deriving pipeline 4 / 5 of which is inserted in, and then the aerosol is distributed to the two air outlets which are respectively connected to different detection devices for performing analysis and detection; the ellipsoidal design of the homogenizing chamber ensures that the aerosol component is more homogenized; and the aerosol proportion distributor can be used for adjusting the distribution proportion of the aerosol at the two air outlets in an on-line manner according to the requirement. By using the aerosol smooth beam-splitting device, the components of the aerosol distributed to the two air outlets are maintained as same as the those of the original sample, a signal with pulse is more stable after being homogenized, and an analysis result with higher accuracy and higher precision is achieved.

Description

technical field [0001] The invention relates to a beam splitting device, in particular to an aerosol smooth beam splitting device. Background technique [0002] As we all know, the application research (including LA-Q-ICPMS and LA-MC-ICPMS) that needs to be applied to all aerosol systems requires aerosol homogenization and proportional division. For example, in zircon research, it is necessary to analyze U-Pb in zircon Dating, trace element content and Hf isotope composition, but the same instrument cannot complete the analysis of all the above information, so it is necessary to divide the aerosol into two beams and introduce them into Q-ICPMS and MC-ICPMS respectively for zircon dating & trace element content and Simultaneous analysis of Hf isotope; In the research of titanite, different instruments are also required to analyze the composition of Sr isotope and the content of trace elements at the same time. [0003] Laser ablation technology is an in-situ micro-area sampl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/36G01N27/64
Inventor 袁洪林杨雪宗春蕾戴梦宁陈开运包志安
Owner NORTHWEST UNIV(CN)
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