Method for measuring zinc element in electroslag steel by ICP-OES

Abstract

The invention provides a method for measuring a zinc element in electroslag steel by ICP-OES. The method comprises the steps of S1, sampling; S2, waiting for detection; S3, preparing a series of standard solutions; S4, forming a series of standard solutions; S5, establishing a working curve; S6, calculating the content of related elements in the sample according to the working curve; S7, determining working parameters of the instrument; S8, drawing a working curve; and S9, determining the content of the zinc element in the sample solution. According to the method, the number of used samples in the detection process is small, damage to the surface of the steel ingot is minimized, few chemical reagents are used, the whole process from the steel ingot to detection is rapid and environmentally friendly, and the method is simple, convenient and easy to implement. The method disclosed by the invention is small in matrix effect, wide in linear range, low in detection limit, good in precision, less in chemical interference and small in spectral line self-absorption, overcomes the defects in the prior art, and can be suitable for electroslag steel production inspection.

Description

technical field [0001] The invention belongs to the technical field of chemical substance analysis methods, and in particular relates to an ICP-OES method for determining zinc in electroslag steel. Background technique [0002] There are no national standards or metallurgical standards for the determination of zinc in electroslag steel by ICP-OES, and there are no specific literature reports on the determination of zinc in electroslag steel. GB / T 20127.12-2006 can be found in the existing relevant literature "Steel and alloys. Determination of trace elements. Part 12; Determination of zinc content by flame atomic absorption spectrometry", DB / T 2764-2017 "Contents of iron, potassium, lead, zinc, copper, arsenic and other multi-elements in iron ore Determination of wavelength dispersive X-ray fluorescence spectrometry", DB / T 1106-2014 "Determination of silicon, aluminum, sulfur, phosphorus, arsenic, copper, zinc, lead and titanium element content in red mud magnetic separation...

AI Technical Summary

Problems solved by technology

The detection value of chemical wet method is relatively stable, but the method is cumbersome to operate and difficult to control. Many kinds of chemical reagents are used in the preparation of samples, and the cost is high. It is generally used for arbitration inspection.

The atomic absorption method uses the dangerous gas acetylene, which is not conducive to the safety and health of the operators. The time required for sample analysis is long, and it is impossible to realize mass testing, which affects the production inspection cycle and makes the detection data not fast and convenient.

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