Method for fast detecting metal composition

Abstract

The invention belongs to the technology field of analytical chemistry and relates to a method for measuring the composition of integrated metal. A method for quickly measuring the composition of metal comprises the following steps: A. placing: placing an integrated metal sample below an electrical sparkle generating hole; B. exciting: generating the electrical sparkle in a sealing space for exciting the surface of the metal sample; C. analyzing: analyzing the vapor spectrum of the excited metal to obtain spectroscopic data; and analyzing the spectroscopic data to determine the metal variety and content in the sample. The method adopts direct excitation on the surface of the sample with no need of sampling, the metallic composition of a product can be directly obtained with no need of destroying the structure of the product, and meanwhile, the measurement result is precise.

Description

technical field [0001] The invention belongs to the technical field of analytical chemistry and relates to a method for measuring the composition of a whole metal. Background technique [0002] There are many methods and equipment for analyzing the composition of substances, and there are also many analysis goals, which are divided into elemental analysis, molecular analysis, etc. There are two main aspects to the analysis of metals, one is the structural analysis of metals, which can be analyzed by methods such as ray diffraction, and the other is to analyze the elemental composition of metals through spectroscopy, using the absorption (emission ) characteristics analysis metal contains different elements and their content. The existing technology mainly judges the composition of the element by exciting the metal so that its atoms are in an excited state and emits a spectrum of a specific frequency, and judges the content of the element through the strength of the spectrum...

AI Technical Summary

Problems solved by technology

The existing technology mainly judges the composition of the element by exciting the metal so that its atoms are in an excited state and emits a spectrum of a specific frequency, and judges the content of the element through the strength of the spectrum. The processing device is combined to form an all-in-one machine, which can directly obtain the final composition data of the sample on the all-in-one machine, but the required sample is a small piece of metal (powder), and the sample is placed in a container, and the sample is vaporized. After the analysis, the sample Damage, its sampling is more complicated, it cannot be directly measured on the finished product, and the representativeness of the sample is poor

In the process of metal casting, it is necessary to check whether the composition of the product is qualified, and it is necessary to quickly measure the composition of the metal in the product and its related content. The existing ray method can only be used to determine what kind of metal it is, and it is impossible to obtain the content of various metals at one time. Composition, and the content of various components of the product cannot be obtained, but the sampling of the existing ordinary element spectrometer is complicated, and it will cause trauma to the product, and even need to destroy the structure of the product