Method for simultaneously measuring multiple metal elements in zinc smelting acid leaching residue through inductively coupled plasma atomic emission spectroscopy
A technology of emission spectroscopy and plasma, which is applied in the field of metal testing and analysis, can solve the problems of inapplicable multi-metal element detection, cumbersome detection methods, and difficulty in one-time detection, etc.
Inactive Publication Date: 2019-05-21
WESTERN MINING CO LTD +2
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[0003] The purpose of the present invention is to provide a method for simultaneous determination of multi-metal elements in zinc smelting acid leaching slag by inductively coupled plasma emission spectrometry, which solves the cumbersome detection method of the prior art, which is difficult to detect multiple elements at one time, and is not suitable for zinc Problems in detection of multi-metal elements in smelting acid leaching slag samples
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[0190] The rest of the steps are the same. In step (6) the zinc smelting acid leaching slag sample treatment process, when the concentration of the element to be measured in the zinc smelting acid leaching slag sample is lower than 0.10ug / mL, before the zinc smelting acid leaching slag sample solution is fixed to volume , Adding the corresponding element standard solution to make the concentration of the element to be tested in the zinc smelting acid leaching slag sample reach 0.50ug / mL. The concentration of the element to be tested in the zinc smelting acid leaching slag sample is subtracted from the concentration introduced by the added standard solution, and then according to the step ( 7) Calculate the analysis results. Among them, the effect of adding the corresponding element standard solution to the zinc smelting acid leaching residue sample is to improve the accuracy of the analysis result.
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The invention belongs to the field of metal testing analysis technology in a metallurgical industry, and particularly relates to a method for simultaneously measuring multiple metal elements in zinc smelting acid leaching residue through inductively coupled plasma atomic emission spectroscopy, wherein measurement is performed according to the detecting principle of the inductively coupled plasma atomic emission spectroscopy. The method comprises the steps of determining an experiment condition, preparing single-element standard solution, preparing mixed standard solution, preparing series standard working solution A, preparing series standard working solution B, performing sample processing, drawing a working curve, checking coexisting element interference, checking an overlimit conditionand a precision condition, performing a recovery rate experiment and checking a stability condition. The method of the invention can simultaneously detect multiple elements in zinc smelting acid leaching residue and realizes high detecting result precision and high stability in an instrument detecting process. The method of the invention can effectively reduce pressure in enterprise detecting andresidue processing. Not only is an important meaning realized, but also high necessarity is obtained.
Description
Technical field [0001] The invention belongs to the technical field of metal testing and analysis in the metallurgical industry, and particularly relates to a method for simultaneous determination of multi-metal elements in zinc smelting acid leaching slag by inductively coupled plasma emission spectrometry. Background technique [0002] The zinc-containing acid leaching residue produced by the oxygen pressure leaching process of Western Mining's 100,000-ton zinc smelting branch has a chemical composition different from that of the zinc concentrate raw material, which is complex and changeable. Because there is no national standard detection method for zinc-containing slag samples from zinc smelting, most companies only follow the national standards or industry standards for zinc concentrates for analysis and testing of these zinc-containing materials, that is, each element is analyzed and tested separately. Among them, zinc and iron are determined by EDTA titration, copper, lead...
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IPC IPC(8): G01N21/73G01N1/28
Inventor 吴敏王茂盛王景凤隆英兰韩俊丽李颜君马悦茹董更福申嘉龄秦月兰
Owner WESTERN MINING CO LTD
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