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Adjustment method and adjustment apparatus of ICP ion source flame detection position

A technology of flame detection and adjustment method, applied in the field of ICP ion source detection, which can solve the problems of large matrix interference, need to remove tail flame, and difficulty in optimal observation position, etc.

Inactive Publication Date: 2015-11-18
CHINA UNIV OF GEOSCIENCES (WUHAN)
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  • Application Information

AI Technical Summary

Problems solved by technology

However, the general ICP ion source lighting position is fixed, and it is difficult to ensure that it is in the best observation position most of the time
Or use the axial observation method to collect light, which will lead to large interference of the substrate and need to remove the tail flame, thus causing more problems

Method used

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  • Adjustment method and adjustment apparatus of ICP ion source flame detection position
  • Adjustment method and adjustment apparatus of ICP ion source flame detection position
  • Adjustment method and adjustment apparatus of ICP ion source flame detection position

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Embodiment Construction

[0038] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments, and the content of the present invention is not limited to the following embodiments.

[0039] A method for adjusting the flame detection position of an ICP ion source provided by the present invention comprises the following steps:

[0040] (1) Set the detection area. The detection area is a rectangular detection area with a length of not less than 6cm and a width of not less than 5cm. The horizontal direction is set as the X direction of the detection area, the vertical direction is the Y direction of the detection area, and the detection area is parallel to For the flame of the rectangular tube and the ICP ion source, the distance between the detection area and the flame of the ICP ion source is 12 to 25 cm, preferably 15 cm, and the vertical distance between the lower edge of the detection area in the X direction and the nozzle of the rectangular tub...

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Abstract

The present invention provides an adjustment method and an adjustment apparatus of the ICP ion source flame detection position. The adjustment method comprises: determining a detection region, determining an X-direction detection interval and a Y-direction detection interval according to the set voltage critical value, acquiring all detection points corresponding to the maximum X-direction detection voltage value, determining the optimal X-direction detection point through a dichotomie method, and determining the optimal Y-direction detection point by using the dichotomie method. According to the adjustment apparatus, the movements in the X direction and the Y direction are achieved through the stepping motor and the ball screw pair, the non-connecting ends of the stepping motor and the ball screw pair are respectively fixed on the sliding block of the guide rail sliding block pair and the rolling wheel, the X-direction ball screw pair and the Y-direction ball screw pair respectively form a threaded connection with the base, the photoelectric conversion module on the base receives the light of the filter to complete the photoelectric conversion, and the electrical signal is processed by the controller so as to control the stepping motor. According to the present invention, with the adjustment method and the adjustment apparatus, the adjustment of the optimal detection position can be rapidly achieved, and the characteristics of quick adjustment, accurate positioning and stable operation are provided.

Description

technical field [0001] The invention relates to an adjustment method and an adjustment device for an ICP ion source flame detection position, belonging to the technical field of ICP ion source detection. Background technique [0002] ICP ion source is a new type of light source developed in the 1960s. Due to its excellent performance, it developed rapidly and was widely used in the 1970s. Now it has been used in various industries, mainly for the detection and analysis of material components. Inductively coupled plasma atomic emission spectrometer is a commonly used analytical instrument, which uses the atomic or ion emission characteristic spectrum of the element under the heating of the ICP ion source to determine the composition of the substance, thereby performing qualitative or quantitative analysis of the element. Among them, the analysis of the spectrum is a very important link. When collecting the spectrum, the position of the flame of the ICP ion source and the posi...

Claims

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Application Information

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IPC IPC(8): G01N21/73
Inventor 金星方健
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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