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Analysis method for measuring gallium element in zinc oxide powder

A zinc oxide powder and elemental technology, applied in thermal excitation analysis, material excitation analysis, etc., can solve problems such as long analysis period, uncertain analysis line selection, incomplete dissolution of samples, etc., and achieve the effect of improving accuracy

Active Publication Date: 2014-07-23
AVIC BEIJING INST OF AERONAUTICAL MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Corresponding analysis methods can be found for different alloy grades. Regarding the analysis of gallium in zinc oxide powder, there is currently no accurate analysis method for this element at home and abroad. Basically, nickel-based, iron-based superalloys, precious metals or other alloy methods are applied. , the mechanical method has disadvantages such as incomplete dissolution of the sample, uncertain selection of the analysis line, etc., resulting in a long analysis cycle.

Method used

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  • Analysis method for measuring gallium element in zinc oxide powder
  • Analysis method for measuring gallium element in zinc oxide powder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] Determination of gallium content in zinc oxide powder, using inductively coupled plasma emission spectrometer, the working conditions and analysis lines of the instrument are as follows: high frequency frequency: 40.68MHz; incident power: 0.95~1.1Kw; reflected power: <15W; argon flow: Cooling air flow: 12-20L / min; sheath air flow: 0.1-0.6L / min; sample lift: 1.0-1.5ml / min; integration time: 1-10s;

[0062] (1) The reagents used in the determination process are as follows:

[0063] (1.1), hydrochloric acid, ρ1.19g / mL; superior grade;

[0064] (1.2), nitric acid, ρ1.42g / mL; superior grade;

[0065] (1.3), hydrochloric acid, 1+1;

[0066] (1.4), aluminum standard solution: 1.00mg / mL; weigh 1.0000g; >99.99% pure aluminum, put it in a 250mL beaker, add 20mL hydrochloric acid (1.3), heat until the aluminum is completely dissolved, add 5 drops of nitric acid (1.2 ), after cooling, transfer it to a 1000mL volumetric flask, dilute to the mark with water, and mix well;

[0067...

Embodiment 2

[0100] Determination of gallium content in zinc oxide powder, using inductively coupled plasma emission spectrometer, the working conditions and analysis lines of the instrument are as follows: high frequency frequency: 40.68MHz; incident power: 0.95~1.1Kw; reflected power: <15W; argon flow: Cooling air flow: 12-20L / min; sheath air flow: 0.1-0.6L / min; sample lift: 1.0-1.5ml / min; integration time: 1-10s;

[0101] (1) The reagents used in the determination process are as follows:

[0102] (1.1), hydrochloric acid, ρ1.19g / mL; superior grade;

[0103] (1.2), nitric acid, ρ1.42g / mL; superior grade;

[0104] (1.3), hydrochloric acid, 1+1;

[0105] (1.4), aluminum standard solution: 1.00mg / mL; weigh 1.0000g; >99.99% pure aluminum, put it in a 250mL beaker, add 20mL hydrochloric acid (1.3), heat until the aluminum is completely dissolved, add 5 drops of nitric acid (1.2 ), after cooling, transfer it to a 1000mL volumetric flask, dilute to the mark with water, and mix well;

[0106...

Embodiment 3

[0138] Determination of gallium content in zinc oxide powder, using inductively coupled plasma emission spectrometer, the working conditions and analysis lines of the instrument are as follows: high frequency frequency: 40.68MHz; incident power: 0.95~1.1Kw; reflected power: <15W; argon flow: Cooling air flow: 12-20L / min; sheath air flow: 0.1-0.6L / min; sample lift: 1.0-1.5ml / min; integration time: 1-10s;

[0139] (1) The reagents used in the determination process are as follows:

[0140] (1.1), hydrochloric acid, ρ1.19g / mL; superior grade;

[0141] (1.2), nitric acid, ρ1.42g / mL; superior grade;

[0142] (1.3), hydrochloric acid, 1+1;

[0143] (1.4), aluminum standard solution: 1.00mg / mL; weigh 1.0000g; >99.99% pure aluminum, put it in a 250mL beaker, add 20mL hydrochloric acid (1.3), heat until the aluminum is completely dissolved, add 5 drops of nitric acid (1.2 ), after cooling, transfer it to a 1000mL volumetric flask, dilute to the mark with water, and mix well;

[0144...

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Abstract

The invention belongs to an alloy macro element analysis technology, and relates to an analysis method for measuring a gallium element in zinc oxide powder. According to the analysis method disclosed by the invention, the zinc oxide powder is dissolved by diluted hydrochloric acid, and the hydrochloric acid-insoluble part of a test sample is completely dissolved by nitric acid. By carrying out an interference experiment, an optimal analysis spectral line is determined, and the accuracy of measurement is improved; the method is wide in measurement range; by synchronously treating the test sample and preparing a high-standard solution and a low-standard solution for measuring the gallium element, the analysis error is the minimum and the method is good in repeatability; low-content gallium element analysis can obtain a good analysis result by direct measurement; by an internal-standard element measurement method, high-content element analysis can be carried out well, the relative standard deviation is low, and the recovery rate and accuracy are high; standard sample analysis, method re-inspection and comparison of the result with analysis results of other units indicate that the formulated analysis method is good in accuracy, stable, and capable of completely meeting the requirements of trace and macro analysis.

Description

technical field [0001] The invention belongs to alloy constant element analysis technology, and relates to an analysis method for determining gallium element in zinc oxide powder. Background technique [0002] Zinc oxide is a new oxide, which is widely used as an additive in the fields of plastics, synthetic rubber, paint coatings, electronic ceramics, cosmetics, chemical fibers and daily necessities. [0003] With the continuous introduction of new materials, the requirements for the composition of various materials with excellent performance are becoming more and more stringent, and the content of various elements in the alloy has a very important influence on the performance of the material. At present, there is no standard method for the analysis of gallium in zinc oxide powder at home and abroad. Most of the available methods for gallium are extraction and separation of rhodamine B spectrophotometry, butyl rhodamine B spectrophotometry, and graphite furnace atomic absor...

Claims

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Application Information

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IPC IPC(8): G01N21/73
Inventor 叶晓英
Owner AVIC BEIJING INST OF AERONAUTICAL MATERIALS
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