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Analysis system and analysis method of laser induced breakdown spectroscopy

A laser-induced breakdown and spectroscopy technology, applied in the field of analytical chemistry, can solve the problems of low detection ability, low improvement, and difficult identification of element energy transition lines.

Active Publication Date: 2015-05-27
BEIJING RES CENT OF INTELLIGENT EQUIP FOR AGRI
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Problems solved by technology

[0004] However, these methods can improve measurement repeatability, but not by much
In addition, another problem of laser-induced breakdown spectroscopy is that its detection ability is not high. On the one hand, some weaker energy transition lines of elements are not easy to be identified; overlapping together, resulting in recognition errors

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  • Analysis system and analysis method of laser induced breakdown spectroscopy
  • Analysis system and analysis method of laser induced breakdown spectroscopy
  • Analysis system and analysis method of laser induced breakdown spectroscopy

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Embodiment Construction

[0040] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on The embodiments of the present invention and all other embodiments obtained by persons of ordinary skill in the art without creative efforts all belong to the protection scope of the present invention.

[0041] figure 1 The analysis system of the two-dimensional energy-dependent laser-induced breakdown spectrum provided by the embodiment of the present invention is shown, such as figure 1 As shown, the analysis system of the two-dimensional energy-dependent laser-induced breakdown spectrum of this embodiment includes: a laser 1, a spectrometer 2, a delay generator 3, an optical fiber 4, a sample 5, and a computer 6; wherein, the delay generator 3 ...

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Abstract

The invention provides an analysis system and an analysis method of two-dimensional energy associated laser induced breakdown spectroscopy. The analysis system comprises a laser, a spectrograph, a delay generator, an optical fiber, a sample and a computer, wherein the laser is used for periodically transmitting pulse laser to strike the sample; the delay generator is respectively connected with the laser and the spectrograph and used for triggering a spectrograph acquisition signal according to a preset delay time; the spectrograph is respectively connected with the optical fiber and the computer and used for acquiring a plasma optical signal transmitted by the sample by virtue of the optical fiber. According to the analysis system and the analysis method of the two-dimensional energy associated laser induced breakdown spectroscopy, the conventional laser induced breakdown spectroscopy is carried out on a laser energy scale, so that the spectral signature can be clearly analyzed, and the detection capability and the repeatability of the conventional laser induced breakdown spectroscopy method can be improved.

Description

technical field [0001] The invention relates to the technical field of analytical chemistry, in particular to an analysis system and method for laser-induced breakdown spectroscopy. Background technique [0002] Laser-induced breakdown spectroscopy is a new type of spectral detection method. Its principle is to irradiate the sample with a strong laser to excite it into a plasma state, and then use a spectrometer to collect the emission spectrum of the plasma state to analyze the element content in the sample. In recent years, laser-induced breakdown spectroscopy has been applied to the measurement of trace elements in samples such as steel, coal powder, murals, soil, and wood. [0003] At present, because the laser-induced breakdown spectroscopy needs to break down the sample to obtain the plasma state spectrum in the measurement, under the influence of laser energy jitter, sample surface inhomogeneity, plasma plume diffusion instability, etc., laser-induced breakdown spectr...

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Application Information

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IPC IPC(8): G01N21/63
Inventor 董大明郑文刚赵春江吴文彪郑文生韩鹏程郎筠李文龙郭瑞
Owner BEIJING RES CENT OF INTELLIGENT EQUIP FOR AGRI
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