Inductively coupled plasma atomic mass spectrometry and spectrum simultaneous detection system and method

Abstract

The invention discloses an inductively coupled plasma atomic mass spectrometry and spectrum simultaneous detection system and method. The detection system comprises an inductively coupled plasma source, a mass spectrometry detection system and a spectrum detection system. The spectrum detection system is composed of a hollow cathode lamp, a spectrum detector and a spectrum detection control module; atomic mass spectrum signals are collected in the axial direction of inductively coupled plasma, and atomic emission and absorption spectrum signals are collected in the radial direction. Accordingto the invention, one inductively coupled plasma source is shared; atomic mass spectrum detection, atomic emission spectrum detection and atomic absorption spectrum detection are integrated in the same ion source / excitation source / atomizer, one-time sample injection can be achieved, atomic mass spectrum detection, atomic emission spectrum detection and atomic absorption spectrum detection can be achieved at the same time, and therefore the consumption of samples and reagents is reduced, the analysis time is saved, and the instrument cost and the use and maintenance cost are reduced.

Description

technical field [0001] The invention relates to the technical fields of plasma technology and atomic mass spectrometry and spectral analysis, in particular to a simultaneous detection system and method for inductively coupled plasma atomic mass spectrometry and spectrum. Background technique [0002] Inductively Coupled Plasma (ICP) is one of the most mature and popular plasma technologies in commercial use. It has high electron density and temperature, high gas dynamic temperature, strong excitation and ionization ability, can atomize and excite almost all elements, and ionize most elements, so it is widely used in the field of atomic mass spectrometry and spectroscopic analysis instruments , used as an ion source for atomic mass spectrometry, and an atomizer / excitation source for atomic spectrometry. Among them, the atomic mass spectrometer with inductively coupled plasma as the ion source and the atomic emission spectrometer as the excitation source are the most successf...

AI Technical Summary

Problems solved by technology

[0006] At present, ICP-based instruments, including ICP-MS and ICP-OES, are relatively expensive analytical equipment in general laboratories. Not only the cost of the instrument itself is high, but also the cost of consumables and maintenance during later use. Neither can be used as a conventional analytical instrument in most of the analysis and scientific research laboratories, and it is even more difficult to equip multiple ICP instruments at the same time.

However, in the actual production and scientific research process, a single device often cannot completely solve the complex problems encountered

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