Method for detecting Ti3O5 components

Abstract

The invention provides a method for detecting Ti3O5 components, which comprises the following steps: mixing Ti3O5 and mixed acid, heating to obtain a mixed solution, and detecting in an inductively coupled plasma emission spectrometer, wherein the mixed acid comprises hydrofluoric acid and nitric acid in a volume ratio of (1.5-2.5):1, the concentration of the hydrofluoric acid is 38-42 wt%, and the concentration of nitric acid in range of 63-68 wt%; and dissolving Ti3O5 in mixed acid of hydrofluoric acid and nitric acid until the mixed solution is in a clear and transparent state, so that the detection standard of ICP-OES on a machine is met, and the method is simple to operate and can detect impurity components and main components at the same time.

Description

technical field [0001] The present invention relates to Ti 3 o 5 Composition technical field, especially relate to a kind of detection Ti 3 o 5 method of ingredients. Background technique [0002] Ti 3 o 5 It is a material for vacuum coating. Vacuum coating refers to a method of heating metal or non-metallic materials under high vacuum conditions to evaporate and condense on the surface of the coating (metal, semiconductor or insulator) to form a thin film, so the content of Ti and impurity components will vary. Affect the uniformity of coating. [0003] Common Ti 3 o 5 The component testing equipment is an inductively coupled plasma optical emission spectrometer (ICP-OES). ICP-OES has less interference, stable signal, and simple operation. Before the test, it only needs to be dissolved in acid to be tested on the machine. ICP-OES is mainly used for Detect most metal elements and some non-metal elements. [0004] CN111289499A discloses a method for simultaneously ...

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Problems solved by technology

[0004] CN111289499A discloses a method for simultaneously detecting multiple trace elements in iron-containing waste acid, including the following steps: sample pretreatment: weigh 2-15 g of iron-containing waste acid sample, add 20-50 mL of hydrochloric acid, 2-5 g of oxidant, Stir until the iron-containing waste acid is completely oxidized into ferric chloride, transfer the sample to be tested to a separatory funnel, add 10-30mL extractant, and extract 3-5 times to remove Fe 3+ Extract cleanly, take the water layer, enrich in a water bath, transfer the sample solution to a 50mL volumetric flask, shake it at a constant volume, and make a blank at the same time; select the element spectrum line; draw a standard curve; detect the sample, this method does not involve Ti 3 o 5 Composition testing

[0005] CN108613970A discloses a method for measuring the rhenium element in rare earth nodular cast iron. The method includes dissolving samples in hydrochloric acid nitric acid hydrofluoric acid, complexing saturated boric acid, and residue burning method to measure the content of rhenium in rare earth nodular cast iron. Coupling plasma emission spectrometer to detect rhenium content in rare earth ductile iron, this method does not involve Ti 3 o 5 Composition testing

[0006] CN104316512A discloses a method for measuring the content of barium in the inoculant, the method comprising the steps of: preparing a standard curve solution of barium, configuring the standard curve solution, measuring the standard curve solution on an inductively coupled plasma emission spectrometer, and using standard The concentration of the barium in the curve solution is the abscissa, and the emission spectrum intensity of the barium in the standard curve solution measured is the ordinate to draw the working curve, and the same measurement conditions of the previous steps are used to measure the liquid to be tested. The concentration of barium in the test solution, and then calculate the content of barium in the sample to be tested, this method does not involve Ti 3 o 5 Composition testing

[0007] Currently there is no Ti 3 o 5 well-defined dissolution method, so it is necessary to develop a method to dissolve Ti 3 o 5 Alloys, and then you can get samples that can be tested by ICP-OES, and you can detect impurity components and main components at the same time

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