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Preparation method for zinc ingot composition analysis quality control sample

A composition and quality technology, applied in the preparation of test samples, material analysis, material analysis through optical means, etc., can solve the problems of unfavorable precision control, easy to float to the surface, unsatisfactory, etc., to improve analysis stability, The effect of ensuring reliability and improving uniformity

Active Publication Date: 2008-10-01
BAOSHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the zinc standard samples used for plasma spectroscopy or atomic absorption analysis at home and abroad do not contain aluminum, because the quality of aluminum is relatively light, and it is easy to float to the surface when the zinc liquid is cooled, thus causing the entire zinc standard sample to be uneven. Therefore, the existing standard samples can never meet the requirements of a standard sample covering all the elements of our sample.
[0003] In actual use, since the zinc standard sample used for plasma spectroscopy or atomic absorption analysis does not contain aluminum, and the content of other elements is quite different from the content of the actual analysis sample, it is not the most suitable for actual use and precision control. Ideal, and the sample requires the analysis of aluminum content, so it can only be controlled by the method of standard addition and recovery. However, if this method is used for analysis, because there are many analysis steps, the links that cause errors will increase, which is not conducive to precision control.

Method used

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  • Preparation method for zinc ingot composition analysis quality control sample
  • Preparation method for zinc ingot composition analysis quality control sample
  • Preparation method for zinc ingot composition analysis quality control sample

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] In this embodiment, it can be clearly seen that the uniformity of the zinc ingot component analysis quality control sample is good by the test data in Table 1; in this table, Q1 represents the size of the grouping factor effect; Q2 represents the size of the test error; Q represents the total Variation sum of squares.

[0014]

[0015]

[0016] Table 1: Uniformity inspection results of zinc ingot composition analysis quality control samples (unit %)

[0017] In this embodiment, it can be clearly seen from the test data in Table 2 that the analysis results of the zinc ingot component analysis quality control samples are all within the tolerance range of the standard value, and the accuracy is quite high.

[0018] the element

[0019] Table 2: Standard values ​​and standard deviations of zinc ingot composition analysis quality control samples

Embodiment 2

[0021] In this embodiment, it can be clearly seen that the uniformity of the zinc ingot component analysis quality control sample is good by the test data in Table 3; in this table, Q1 represents the size of the grouping factor effect; Q2 represents the size of the test error; Q represents the total Variation sum of squares.

[0022]

[0023]

[0024] Table 3: Uniformity test results of zinc ingot composition analysis quality control samples (unit %)

[0025] In this embodiment, it can be clearly seen from the test data in Table 4 that the analysis results of the zinc ingot composition analysis quality control samples are all within the tolerance range of the standard value, and the accuracy is quite high.

[0026] the element

[0027] Table 4: Standard values ​​and standard deviations of zinc ingot composition analysis quality control samples

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Abstract

The method to prepare a mass controlled sample for Zn slab component analysis comprises: A. continual heating at 420-520Deg, better at 420-470Deg; B. adding proper Al, Fe, Pb, Cr, Cu, Cd, and Si, while stirring for 20-40min; C. molding the Zn liquid rapidly into boiled water (>80Deg) through a sieve; D. taking out to dry in hot gas. This invention improves analysis stability.

Description

technical field [0001] The invention relates to a method for preparing a zinc ingot component analysis quality control sample. Background technique [0002] At present, the zinc standard samples used for plasma spectroscopy or atomic absorption analysis at home and abroad do not contain aluminum, because the quality of aluminum is relatively light, and it is easy to float to the surface when the zinc liquid is cooled, thus causing the entire zinc standard sample to be uneven. Therefore, the currently existing standard samples cannot meet the requirement that one standard sample covers all the elements of our sample. [0003] In actual use, since the zinc standard sample used for plasma spectroscopy or atomic absorption analysis does not contain aluminum, and the content of other elements is quite different from the content of the actual analysis sample, it is not the most suitable for actual use and precision control. Ideal, and the sample requires the analysis of aluminum ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N1/28G01N21/00
Inventor 钱敏沈炜
Owner BAOSHAN IRON & STEEL CO LTD