
Overview of Computer Multi element Integrated Analyzer:
Multi element analyzer, one instrument can detect all conventional elements C, S, Mn, P, Si, Cr, Ni, Mo, Cu, Ti, Al, W, V, Zn, Fe, etc. in materials such as steel; The multi-element analyzer adopts brand computer microcomputer control, electronic balance weighing, and desktop printer printing of detection results; The multi-element analyzer testing software is fully functional and can completely replace various manual writing tasks in traditional laboratories. It can also set the format of the testing report according to the actual needs of each unit; The detection function is huge, with a channel space for detecting 108 elements and storing n curves
Technical parameters and specifications:
C: 0.020-6.000% S: 0.0030-2.000%
Mn: 0.010-20.500% P: 0.0005-1.0000%
Si: 0.010-18.000% Cr: 0.010-38.000%
Ni: 0.010~48.000% Mo: 0.010~7.00%
∑ RE: 0.0100-0.500% Mg: 0.0100-0.800%
Cu: 0.010-8.000% Ti: 0.010-5.000%
If the multi-element analyzer changes the testing conditions, the range can be correspondingly expanded.
Measurement accuracy: Complies with national standards such as GB223.3-5-1988 and GB223.68-69-1997.
Measurement range of computer multi-element integrated analyzer:
Measurement range of multi-element analyzer: (As this instrument can detect a large number of elements, common elements such as C, S, Mn, P, Si, Cr, Ni, etc. in steel are taken as examples)
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Extended reading:
How to eliminate system errors in multi-element integrated analyzer
When using a multi-element integrated analyzer for analysis, corresponding measures can be taken to address the sources of systematic errors, which can make the systematic errors almost eliminated. Common methods include:
1. Control experiment
This is the most effective method for testing system errors. The multi-element integrated analyzer is used to analyze the standard substance with known accurate content and the tested sample using the same analysis method for comparison. If the composition of the sample is not completely clear, the recovery of the added amount should be used to determine whether there is systematic error in the analysis method;
2. Calibrate measuring instruments
Computer multi-element integrated analysis instruments or measuring instruments have been calibrated before leaving the factory and generally meet the analysis requirements. However, in order to ensure the accuracy of the measurement, it must be verified before use, and periodic rechecks should be carried out according to regulations during use to calculate the correction value and reduce errors;
3. Blank experiment
Systematic errors caused by impurities introduced by reagents, containers, and the environment can be reduced or eliminated using blank tests. When adding the sample, analyze it using the same conditions and reagents according to the selected analysis method, and deduct the blank value from the sample analysis result;
4. Method calibration
The systematic errors of some computer multi-element integrated analyzer analysis methods can be directly corrected by chemical analysis methods. For example, when using electrolysis to determine copper, in precise analysis, trace amounts of copper remaining in the mother liquor can be measured by atomic absorption spectroscopy and added to the electrolysis measurement results.
Attention to the determination of phosphorus in tungsten containing steel using a computer multi-element integrated analyzer
Phosphorus is a harmful element in steel. When its content exceeds 0.05%, it will cause strong cold brittleness in steel, ultimately leading to steel fracture. Therefore, it is very important to use a computer multi-element analyzer to analyze the phosphorus content in steel. In order to accurately determine the phosphorus content in tungsten containing steel, the following issues should be noted:
1. The amount of aqua regia added should be based on its solubility. The amount of aqua regia has little effect on the analysis results, but when it emits high chloric acid smoke, it takes time and affects the analysis speed.
After adding sodium hydroxide, shake thoroughly to dissolve all the precipitated tungstic acid.
3. It is best not to add ammonium molybdate potassium sodium tartrate along the cup wall to avoid adhering to the cup wall and affecting the analysis results.
4. The color comparison time should be relatively consistent to make the measurement results more accurate.
If the testing conditions of the multi-element analyzer are changed, the measurement range of elements can be correspondingly expanded. Measurement accuracy: GB223.3-5-1988, GB223.68-69-1997 and other national standards. Can fully meet the quality requirements of enterprises.
