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Method for measuring content of nickel in low nickel iron

A method of determination, technology of nickel content, applied in the direction of color/spectral characteristic measurement, etc., can solve the problems of cumbersome operation and long time consumption, and achieve the effect of easy promotion, short time consumption and simple method

Inactive Publication Date: 2013-07-03
RIZHAO STEEL HLDG GROUP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] The determination of low-content nickel in steel and alloys is generally carried out by extraction-dimethylglyoxime photometry, dimethylglyoxime gravimetric method, and dimethylglyoxime direct photometric method (sodium hydroxide-ammonium persulfate medium). Disadvantages of cumbersome and time-consuming

Method used

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  • Method for measuring content of nickel in low nickel iron
  • Method for measuring content of nickel in low nickel iron

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Effect test

Embodiment 1

[0042] Use the nickel-iron standard sample JSS760-3 to make the standard solution with a given value of 1.956%, and measure continuously 8 times respectively according to the assay method of the present invention, and the assay results of nickel are shown in Table 4.

[0043] Table 4 Determination results of nickel in standard solution

[0044]

[0045] As can be seen from the data in Table 4, the precision and accuracy measured by the assay method of the present invention are all very good.

Embodiment 2

[0047] The low-nickel-iron standard sample YSBC28040a-08 was continuously measured 8 times according to the method of the present invention, and the results of nickel determination are shown in Table 5.

[0048] Table 5 Determination results of nickel in low-nickel-iron standard samples

[0049]

[0050] As can be seen from the data in Table 5, the average value of the assay results of the present invention is consistent with the given value of the standard sample, and the analytical precision and accuracy are all good.

[0051] The present invention has the following effects: First, the present invention can accurately measure the content of nickel in low-nickel iron. Second, the present invention is time-consuming and has a short analysis period, which can be completed in about 1 hour. Three, the method of the present invention is simple, easy to operate, few steps, with low cost, easy to popularize.

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Abstract

The invention discloses a method for measuring the content of the nickel in low nickel iron. The method comprises the following steps: S1, a sample is divided into two measuring flasks and displayed; and S2, color development is performed according to the S1, an absorbance value is recorded, a work curve is drawn, and a sample measurement value is looked up from the work curve. The method for measuring the content of the nickel in the low nickel iron can be operated conveniently, is short in consumed time, and can accurately measure the content of the nickel in the low nickel iron.

Description

technical field [0001] The invention relates to a determination method, in particular to a determination method of nickel content in low-nickel iron. Background technique [0002] The determination of low-content nickel in steel and alloys is generally carried out by extraction-dimethylglyoxime photometry, dimethylglyoxime gravimetric method, and dimethylglyoxime direct photometric method (sodium hydroxide-ammonium persulfate medium). The disadvantages of cumbersome and time-consuming. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a method for determining the nickel content in low-nickel iron, which is easy to operate, takes a short time, and can accurately measure the nickel content in low-nickel iron. [0004] The present invention solves the problems of the technologies described above through the following technical solutions: a method for assaying nickel content in low-nickel iron, characterized in that i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/31
Inventor 焦安杰刘宏志曹兴旺葛之厚薛浩川
Owner RIZHAO STEEL HLDG GROUP
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