Russia developed a new mass spectrometer to quickly and accurately determine the composition of matter

[China Instrument Network Instrument Development] Recently, Russian experts have developed a new laser mass spectrometer operation program, which can directly determine the elemental composition of materials without using so-called standard samples, significantly increasing the analysis speed and reducing the cost of analysis.

A laser spectrometer is an instrument that uses a spectroscopic technique using a laser as a light source. The laser spectrometer uses laser as the light source, has the characteristics of good monochromaticity, high brightness, strong directionality and strong coherence, greatly improves the lack of sensitivity and resolution of the original spectroscopy technology, and identifies the substance and its system The structure, composition, state, and ideal light source for changes.

Laser spectrometers have always been applied to the analysis of materials, but traditional elemental analysis methods require heavy sample preparation. If the sample being studied is solid, for example when analyzing minerals, it needs to be dissolved, which takes time and may also pollute the environment. In addition, it is necessary to compare with the so-called standard samples in order to avoid errors in the analysis of the overall composition. In this case, the standards are specifically acquired, which increases the cost of the analysis.

The new method proposed by Russian scientists can perform general analysis of solid materials without the use of standard samples. According to Aleksey Tsauyev, a professor of the Moscow State University of Engineering Physics (MEPhI) of the Russian National Nuclear Energy Research University, this new type of laser spectrometer is not only compact, sensitive, efficient and competitively priced, but also can be easily applied to solids. Material for general analysis.

In addition, the new analyzer can perform a wide range of energy transfer, compact and lightweight, minimizing power requirements. In addition, this instrument can analyze all types of substances, methods are environmentally friendly, can perform local and stratified analysis, there is no interference of cluster ions. For example, it can significantly expand the role of the mass spectrometer in crime detection, opening up new prospects for analyzing the areas related to trace elements in human hair and nails; it can also improve the accuracy of the identification of components in transit stations and airports, and accelerate soil samples. Analyze to get the right picture of the ecological situation in a certain area.

(Source: Business Insight, Science Exploration, Baidu Encyclopedia)