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Detection method of lithium ion content in anodic oxidation bath

An anodic oxidation tank and detection method technology, applied in the preparation of test samples, electrical excitation analysis, material excitation analysis, etc., can solve the problems of difficult effective control of the anodic oxidation process of aluminum-lithium alloys, shorten the analysis and detection time, Broaden the application and solve the effect of polluting the environment

Active Publication Date: 2016-09-21
JIANGXI HONGDU AVIATION IND GRP
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Problems solved by technology

This makes it difficult to effectively control the aluminum-lithium alloy anodic oxidation process.

Method used

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Embodiment Construction

[0020] Below in conjunction with embodiment the present invention is further described:

[0021] A method for detecting lithium ions in an anodic oxidation bath, characterized in that it comprises the steps of:

[0022] The first step is to select the instrument analysis conditions: use the inductively coupled plasma optical emission spectrometer (ICP-OES) to refer to the navigation mark HB7266.1-96 "Analysis Method for Chemical Composition of Aluminum-Lithium Alloys for the Determination of Cu, Fe, Li, In the content of Mg, Si, Zr, adjust the instrument for the detection method of lithium element content in aluminum-lithium alloy. L / min, carrier gas 0.6L / min, observation height 10mm, solution lifting volume 1.2mL / min, integration time 15 seconds; analysis line: lithium 670.7nm; internal standard line: yttrium 371.0nm;

[0023] The second step, test solution preparation: After filtering the anodic oxidation bath solution to be tested with quantitative filter paper, pipette 10...

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Abstract

The invention relates to a method for detecting lithium ion content of an anodization tank liquid. The method comprises the steps of apparatus analysis condition selection, reagent preparation, standard solution preparation, spectrum measurement, theoretical tank liquid preparation and spectral measurement. The invention provides the method for detecting lithium ion content of an anodization tank liquid by an inductively coupled plasma emission spectrometer (ICP-OES). The method can effectively shorten analysis detection time by 50% and fills in the blank of detection of the metal ion content of the anodization tank liquid by the inductively coupled plasma emission spectrometer. The method is accurate, simple and fast. The method widens application of the inductively coupled plasma emission spectrometer in the tank liquid analysis field, is nontoxic and environmentally friendly and effectively solves the problem of environmental pollution in tank liquid analysis.

Description

technical field [0001] The invention relates to a method for detecting lithium ion content in anodic oxidation bath liquid. Background technique [0002] Aluminum-lithium alloy materials have only recently been widely used in the aviation field, so although there are some standard analysis methods such as: HB7266. Al-Li Alloy Chemical Composition Analysis Method Inductively Coupled Plasma Atomic Emission Spectrometry Determination of Cu, Fe, Li, Mg, Si, Zr Content", but there is no relevant analysis method for the lithium ion content in the aluminum-lithium alloy surface treatment bath The standards can be implemented by reference. This makes it difficult to effectively control the aluminum-lithium alloy anodic oxidation process. [0003] Therefore, it is necessary to design a method to realize the detection and analysis of lithium ions in the anodic oxidation bath. Contents of the invention [0004] The purpose of the present invention is to overcome the deficiencies o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N1/28G01N21/68
Inventor 周琳燕
Owner JIANGXI HONGDU AVIATION IND GRP
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