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Methods for analysis of metallic materials

Writer:公司Source:公司 Number of visits: Date:2016-9-20
                      Methods for analysis of metallic materials
A traditional method for the analysis of metal components
1 spectrophotometric method is based on the bert-Bee Lam law and the quantitative analysis and characterization of metal elements. Different wavelengths of light are used in this method, and the solution is continuously injected into the solution containing metal ions, and at the same time, the absorption intensity corresponding to different wavelengths can be obtained. By drawing the absorption spectrum curve of the metal ion, the metal ion in the solution can be quantitatively analyzed, and the concentration and the content of the metal ion can be obtained. The method needs to choose the appropriate color agent.
2 titration analysis is a traditional analytical method, referring to the use of a standard concentration of reagents to measure metal ions containing metal ions.
3 Atomic Spectrometry
(1) atomic emission spectrometry (AES) is based on atom or ion excitation and will send out the received spectral line has certain characteristics in certain conditions, and a method of quantitative analysis of metal materials by using the spectral line. This method is used to analyze the effect of sulfur and carbon in metal materials.
(2) atomic absorption spectrometry (ABS) is based on the outer electron atom in the gaseous on the line between the visible and UV absorption, then the absorption intensity analysis method to quantitatively obtained metal components. Flame atomic absorption spectrometry.
4.X - ray fluorescence spectrometry (XRF) is a kind of metal elements in outer electron movement is slow down or metal core electrons in transition caused by electromagnetic radiation, electromagnetic radiation and metal atoms in wave absorption and emission analysis of the corresponding spectral lines. This method has a wide range of analysis and high efficiency, but the method requires a high homogeneity of samples, and is subject to the impact of the basic effect, so the operation process is relatively strict requirements.
5 electrochemical analysis method is a kind of metal material composition analysis method which uses the composition and content of metal materials and the electrochemical properties of metal materials with a certain correlation. However, the accuracy of this method is low, and it is not convenient to operate, which has a great influence on the outside environment.
Two. A new method for the analysis of the composition of metallic materials
1 inductively coupled plasma mass spectrometry (ICP-MS) is an analytical method of the most sensitive elements, now mainly used for quantitative determination of trace and trace elements, such as the measurement of metal materials in rare metals, precious metals, refractory metals and rare earth metals.
2 laser induced plasma spectrometry (LIPS) is a kind of atomic emission spectrometry, the device has the advantages of simple structure, convenient operation, can be carried out at the same time measurement of various elements in metal materials, improve the measurement efficiency, and can meet the needs of online measurement and analysis, this method can be used to measure trace elements in stainless steel.
3 inductively coupled plasma atomic emission spectrometry (ICP-AES) is a new type of atomic emission spectrometry, which has a wide measurement range and high sensitivity.
4 graphite furnace atomic absorption spectrometry analysis of fast, easy to operate. This method can be used to measure the trace element lead in copper alloy, and the results obtained are consistent with the conventional method, the national free consultation hotline: 400-680-6358
Nanjing Ning Bo Analytical Instrument Co., Ltd.
2016.09.20

TypeInfo: Industrial News

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