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Method for rapidly and simultaneously determining content of ten elements in 70 ferrotitanium through microwave digestion-ICP-AES

A technology of -ICP-AES and microwave digestion, which is applied in the field of microwave digestion-ICP-AES to quickly and simultaneously determine the content of ten elements in 70 ferro-titanium, can solve the problems of low accuracy, difficult processing, insufficient decomposition, etc., and achieve The effect of wide detection range, less dosage, and reduced detection time

Active Publication Date: 2017-01-04
JIANGYIN XINGCHENG GOLD MATERIALS CO LTD
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Problems solved by technology

[0004] In addition, because the chromium content in chromite is different, it brings difficulties to the pretreatment of the sample, and the use of other methods has the problems of insufficient decomposition and low accuracy.

Method used

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  • Method for rapidly and simultaneously determining content of ten elements in 70 ferrotitanium through microwave digestion-ICP-AES
  • Method for rapidly and simultaneously determining content of ten elements in 70 ferrotitanium through microwave digestion-ICP-AES
  • Method for rapidly and simultaneously determining content of ten elements in 70 ferrotitanium through microwave digestion-ICP-AES

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Embodiment Construction

[0016] Below in conjunction with embodiment the present invention is described in further detail.

[0017] The method for quickly and simultaneously measuring ten kinds of element contents in 70 ferro-titanium by microwave digestion-ICP-AES, described method comprises the steps:

[0018] Equipment used in the experiment: American Thermo Fisher6500Duo full-spectrum direct-reading inductively coupled plasma emission spectrometer; American CEM Mars6 microwave digestion instrument; German Sartorius electronic balance

[0019] Reagents used in the experiment: nitric acid (excellent pure); sulfuric acid (excellent pure); ultrapure water (self-made); standard stock solution: the standard stock solution of Si, Al, Ca, Mg, Fe, Cr was provided by the National Iron and Steel Research Institute Provided, except that the concentration of Si is 500 μg / mL, the other concentration values ​​are 1000 μg / mL; reference materials: high-purity titanium (titanium mass fraction 99.5%); high-purity ir...

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Abstract

The invention relates to a method for rapidly and simultaneously determining the content of major element titanium and minor elements, namely, silicon, aluminum, manganese, nickel, vitriol, molybdenum, chromium, phosphorus and copper in 70 ferrotitanium through microwave digestion-ICP-AES. The method comprises the steps that a sample dissolving method, the microwave digestion conditions and the matrix interference condition are investigated and researched, an IEC data model is incorporated into method establishment, interference of the major element Ti to the trace element P can be sheltered, and the interference degree is decreased to minimum; detection limits of all the elements are determined finally, and a precision experiment and a standard addition recovery experiment are conducted. It is shown through the result that for the method, the relative standard deviation (n=8) ranges from 1.24% to 6.72%, and the standard addition recovery rate ranges from 92.6% to 105.1%. The method is advanced and reliable, the analysis cycle is short, ten elements can be determined rapidly and simultaneously through one-time sample decomposition, synchronous analysis of the major element and the minor elements is achieved successfully, and the method is suitable for analysis of 70 ferrotitanium.

Description

technical field [0001] The invention relates to a rapid detection method for ten elements in 70 ferro-titanium, in particular to a detection method for rapidly and simultaneously measuring the contents of ten elements by using microwave digestion-inductive coupling-plasma emission spectroscopy (ICP-AES). Background technique [0002] 70 ferro-titanium refers to ferro-titanium alloy containing 65-75% titanium, which is mainly composed of titanium and iron. Ferro-titanium is often added to steel as an additive and degasser for steel-making alloying elements. Among them, titanium in steel can improve the strength and corrosion resistance of steel, and can refine the grain size, improve toughness and prevent grain corrosion. It is also an effective element for fixing carbon and nitrogen. Therefore, ferro-titanium is widely used in high-strength steel and low-alloy steel, and is an important raw material for the production of chain steel, shipbuilding steel, stainless steel, wel...

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Application Information

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IPC IPC(8): G01N21/73G01N1/44
CPCG01N1/44G01N21/73G01N2001/2893
Inventor 严倩琳钱刚阮小江许晓红白云
Owner JIANGYIN XINGCHENG GOLD MATERIALS CO LTD
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