A Real-time Quantitative Analysis Method of Raman Spectroscopy Based on Area Method
A Raman spectroscopy and quantitative analysis technology, applied in the field of spectral detection, can solve the problems of large interference and low purity, and achieve the effect of reducing interference, simplifying quantitative analysis steps, and reducing quantitative analysis errors.
Inactive Publication Date: 2018-07-27
ANHUI XINHE DEFENSE TECH JOINT CO LTD
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[0003] The purpose of the present invention is to overcome the deficiencies of the prior art, to provide a real-time quantitative analysis method of Raman spectroscopy based on area, which can solve the problem of accurate quantitative analysis of mixtures, impurities and impure substances, and solve the problems of low purity and interference. For larger material detection problems, qualitative and quantitative detection functions can be realized on the basis of qualitative Raman spectroscopy
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[0045] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.
[0046] see figure 1 — figure 2 , this embodiment is an instant quantitative analysis method of Raman spectroscopy based on the area peak, which involves a quantitative analysis method of samples with different concentrations during the detection process of Raman spectroscopy. Usually, Raman spectroscopy is only used for qualitative analysis, and the concentration of samples cannot be accurately and quantitatively detected. This method solves the quantitative analysis of Raman spectroscopy in the process of real-time detection, and gives the concentration of the sample to be tested in real time.
[0047] The specific method steps are as follows:...
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The invention discloses a Raman spectrum real-time and quantitive analysis method based on an area method. The method comprises the following steps: carrying out Roman testing on a standard sample for multiple times, and calculating the quantity, the intensities and the areas of Raman spectrum characteristic peaks of the standard sample; taking an average value of the areas of the characteristic peaks; dividing the area values of the two characteristic peaks having highest intensities in a Raman spectrum of the standard sample to obtain a ratio which serves as a qualitative criterion of a sample to be detected; calculating peak area values of all the characteristic peaks of the sample to be detected having an unknown concentration, calculating the concentration of the sample to be detected by comparing the peak area values of the characteristic peaks with an area value of every 1% concentration of the corresponding standard sample, and finally acquiring the physical attribute and the concentration of the sample to be detected. Due to the adoption of such method, the problem that the concentration of a sample cannot be quantitatively analyzed by Roman spectrum in a sample detection process is solved, and the quantitive analysis in a real-time detection process is furthest solved; meanwhile, a calibration process of internal and external standard methods is simplified, the detection speed and the detection precision are improved, and the concentration detection range is expanded.
Description
technical field [0001] The invention belongs to the technical field of spectrum detection, and in particular relates to a Raman spectrum instant quantitative analysis method based on an area method. Background technique [0002] In recent years, with the development of the economy, administrative law enforcement departments have higher and higher requirements for Raman spectroscopy detection technology. In addition to meeting the qualitative detection requirements, quantitative analysis of various mixtures, impurities and impurities is required. , the Raman spectroscopy products currently on the market have no relevant quantitative analysis technology, and cannot meet the requirements of Raman spectroscopy for accurate measurement of substances with low purity. Quantitative analysis technology will be of great significance to the development of Raman spectroscopy in the detection field, and at the same time solve the detection problems of various substances with low purity a...
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IPC IPC(8): G01N21/65
CPCG01N21/65
Inventor 刘卫王中昆葛磊姚冰李东风
Owner ANHUI XINHE DEFENSE TECH JOINT CO LTD