CN114199851A - Method for quickly identifying easily-confused mineral medicines with similar characters - Google Patents
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- CN114199851A CN114199851A CN202111462989.4A CN202111462989A CN114199851A CN 114199851 A CN114199851 A CN 114199851A CN 202111462989 A CN202111462989 A CN 202111462989A CN 114199851 A CN114199851 A CN 114199851A
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- 239000003814 drug Substances 0.000 title claims abstract description 76
- 229910052500 inorganic mineral Inorganic materials 0.000 title claims abstract description 76
- 239000011707 mineral Substances 0.000 title claims abstract description 76
- 229940079593 drug Drugs 0.000 title claims abstract description 58
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000001237 Raman spectrum Methods 0.000 claims abstract description 52
- 238000001228 spectrum Methods 0.000 claims abstract description 22
- 238000007781 pre-processing Methods 0.000 claims abstract description 7
- 241000566693 Asteriscus Species 0.000 claims description 6
- -1 Ophicalcitum Chemical compound 0.000 claims description 6
- 229910021538 borax Inorganic materials 0.000 claims description 6
- 239000004328 sodium tetraborate Substances 0.000 claims description 6
- 235000010339 sodium tetraborate Nutrition 0.000 claims description 6
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims description 4
- JJWKPURADFRFRB-UHFFFAOYSA-N carbonyl sulfide Chemical compound O=C=S JJWKPURADFRFRB-UHFFFAOYSA-N 0.000 claims description 4
- 230000005284 excitation Effects 0.000 claims description 4
- 230000010354 integration Effects 0.000 claims description 4
- 238000005259 measurement Methods 0.000 claims description 4
- RSIJVJUOQBWMIM-UHFFFAOYSA-L sodium sulfate decahydrate Chemical compound O.O.O.O.O.O.O.O.O.O.[Na+].[Na+].[O-]S([O-])(=O)=O RSIJVJUOQBWMIM-UHFFFAOYSA-L 0.000 claims description 4
- 229940126678 chinese medicines Drugs 0.000 claims description 3
- 230000003595 spectral effect Effects 0.000 claims description 3
- 238000001069 Raman spectroscopy Methods 0.000 abstract description 3
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- 229940037003 alum Drugs 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 239000010440 gypsum Substances 0.000 description 2
- 229910052602 gypsum Inorganic materials 0.000 description 2
- 235000008216 herbs Nutrition 0.000 description 2
- 239000010446 mirabilite Substances 0.000 description 2
- 241000894007 species Species 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 206010035664 Pneumonia Diseases 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007012 clinical effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000009878 intermolecular interaction Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/65—Raman scattering
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/3581—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using far infrared light; using Terahertz radiation
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Toxicology (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Abstract
The invention relates to the technical field of terahertz-Raman spectroscopy, and aims to provide a method for quickly identifying easily confused mineral type medicines with similar properties, in order to quickly and accurately identify the easily confused mineral type medicines with similar properties. Therefore, the technical scheme adopted by the invention is that the method for quickly identifying the mineral medicines with similar properties and easy confusion comprises the following steps: spectrum collection: collecting spectrums of several mineral medicines with similar properties and easy confusion by adopting a terahertz-Raman spectrum system in sequence; spectrum pretreatment: preprocessing the terahertz-Raman spectrum of a mineral traditional Chinese medicine sample to obtain a preprocessed spectrogram of the sample; fast identification of drugs in minerals: analyzing the characteristic peaks of the terahertz-Raman spectrum of the medicines in different mineral classes, and identifying the medicines in the mineral classes with similar properties and easy confusion. The invention is mainly applied to the identification occasions of mineral medicines.
Description
Technical Field
The invention relates to the technical field of terahertz-Raman spectroscopy, in particular to a method for quickly identifying mineral type medicines with similar properties and easy confusion.
Background
The traditional Chinese medicine as a treasure of Chinese nationality has the effects of preventing, treating and diagnosing diseases and the like, and especially plays more and more important roles in the international medical field along with the successful application of the traditional Chinese medicine in the treatment of the new coronary pneumonia, so that the safety and the effectiveness of the traditional Chinese medicine have important significance in clinical treatment. Mineral Chinese herbs have a long clinical history as an important part of Chinese herbs. There are many kinds of mineral drugs, and some of them have similar chemical components but different clinical effects. At present, the identification methods of the medicines in the minerals mainly comprise character identification and physicochemical identification, but the methods rely on the experience of an identifier, so that samples with similar characters are difficult to identify, and particularly, when the samples are ground into powder, the identification difficulty is increased. Therefore, the method for quickly and accurately identifying the medicines with similar characters and easy confusion among the mineral classes has important clinical significance.
Raman spectroscopy is based on the inelastic scattering of photons by molecules and has found wide application in analyzing and identifying intramolecular vibrational and/or rotational information of various compounds. The Raman spectrum is used as an effective supplement method for traditional identification of the medicines in the minerals, has the advantages of rapidness, no mark, no damage and the like, and is an ideal method for identifying the medicines in the minerals with similar characters and easy confusion. As the drugs in the minerals containing the same anionic groups are 300-2000cm-1The spectrum range has similar Raman spectra, so that the detection of the same type of traditional Chinese medicine containing the same anions by using the Raman spectra in the spectrum range has obvious defects. With the development of filtering technology, Raman spectra have been derived from the conventional fingerprint region (300 cm)-1-2000cm-1) Extends to a low-frequency terahertz (THz) region (0-300 cm)-1Corresponding to a frequency of 0-10 THz). 300cm-1-2000cm-1The raman spectrum within the range reflects chemical information of molecules, and the raman spectrum of the terahertz waveband (hereinafter referred to as terahertz-raman spectrum) reflects structural information of the molecules. Researches show that the terahertz-Raman spectrum is very sensitive to crystal structures, intermolecular interaction, lattice vibration, molecular skeleton vibration and the like. Because the medicines in different mineral classes have different crystal structures, the terahertz-Raman spectrum technology is expected to realize similar properties and easily confused mineralsEfficient identification of drugs in a species.
Disclosure of Invention
In order to overcome the problem that the prior art is difficult to realize the rapid and accurate identification of the mineral medicines with similar properties and easy confusion, the invention aims to provide a rapid identification method of the mineral medicines with similar properties and easy confusion. Therefore, the technical scheme adopted by the invention is that the method for quickly identifying the mineral medicines with similar properties and easy confusion comprises the following steps: spectrum collection: collecting spectrums of several mineral medicines with similar properties and easy confusion by adopting a terahertz-Raman spectrum system in sequence; spectrum pretreatment: preprocessing the terahertz-Raman spectrum of a mineral traditional Chinese medicine sample to obtain a preprocessed spectrogram of the sample; fast identification of drugs in minerals: analyzing the characteristic peaks of the terahertz-Raman spectrum of the medicines in different mineral classes, and identifying the medicines in the mineral classes with similar properties and easy confusion.
The detailed procedure for spectrum acquisition is as follows: sequentially placing mineral medicines to be measured on an objective table, wherein the excitation wavelength of a Raman spectrum system is 785nm, and the measurement range of the Raman spectrum is set to be 0-300cm-1The laser power is 70mW, the integration time is 10s, and the accumulated times are 3 times;
several mineral Chinese medicines with similar properties and easy confusion include Gypsum Fibrosum, Ophicalcitum, Natrii sulfas, Alumen, asteriscus Pseudosciaenae, and Borax; the authenticity of the measured sample is confirmed by comparing with the experimental results in the prior reference documents;
the detailed procedure of the spectral pre-processing is as follows: sequentially carrying out cosmic ray removal, denoising and baseline removal on the terahertz-Raman spectrum of the mineral medicine to obtain a preprocessed terahertz-Raman spectrum of the mineral medicine;
analyzing and summarizing characteristic peaks of terahertz-Raman spectra of the medicines in different mineral classes, and identifying the medicines in the mineral classes with similar properties and easy confusion according to different positions of the characteristic peaks.
The invention has the characteristics and beneficial effects that:
1. provides a rapid identification method of mineral medicines with similar properties and easy confusion;
2. the terahertz-Raman spectrum technology is utilized to characterize mineral Chinese medicines which have similar properties and are easy to be confused, such as but not limited to gypsum, ophicalcitum, glauber salt, alum, asteriscus Pseudosciaenae, borax and the like;
3. analyzing and summarizing the terahertz-Raman spectrum characteristic peak, and quickly identifying according to the difference of the Raman spectrum characteristic peak positions of different mineral drugs.
4. The method realizes the rapid identification of mineral drugs with similar properties and easy confusion only by the difference of the positions of the characteristic peaks of the terahertz-Raman spectrum, has the advantages of simplicity, high accuracy and the like, and has important application prospect in practical clinic.
Description of the drawings:
FIG. 1 shows the terahertz-Raman spectrum of Gypsum Fibrosum, Ophicalcitum, Natrii sulfas, Alumen, asteriscus Pseudosciaenae, and Borax.
FIG. 2 is a flow chart of the present invention.
Detailed Description
The invention aims to solve the technical problem that the prior art is difficult to realize the rapid and accurate identification of the medicines in the mineral class with similar properties and easy confusion, and provides a rapid identification method of the medicines in the mineral class with similar properties and easy confusion.
The technical scheme adopted by the invention for solving the technical problem is based on the terahertz-Raman spectrum technology, and comprises the following steps: spectrum collection: collecting spectrums of several mineral medicines with similar properties and easy confusion by adopting a terahertz-Raman spectrum system in sequence; spectrum pretreatment: preprocessing the terahertz-Raman spectrum of a mineral traditional Chinese medicine sample to obtain a preprocessed spectrogram of the sample; fast identification of drugs in minerals: analyzing the characteristic peaks of the terahertz-Raman spectrum of the medicines in different mineral classes, and identifying the medicines in the mineral classes with similar properties and easy confusion.
In the above scheme, the process of spectrum acquisition is as follows: sequentially placing mineral medicines to be measured on an objective table, wherein the excitation wavelength of a Raman spectrum system is 785nm, and the measurement range of the Raman spectrum is set to be 0-300cm-1The laser power is 70mW, the integration time is 10s, and the accumulated times are 3 times;
in the scheme, the mineral medicines with similar properties and easy confusion include but are not limited to gypsum, ophicalcite, mirabilite, alum, asteriscus Pseudosciaenae and borax;
in the scheme, the authenticity of the measured sample is confirmed by comparing with the experimental result in the existing reference;
in the above scheme, the spectrum preprocessing process is as follows: sequentially carrying out cosmic ray removal, denoising and baseline removal on the terahertz-Raman spectrum of the mineral medicine to obtain a preprocessed terahertz-Raman spectrum of the mineral medicine;
in the scheme, the characteristic peaks of the terahertz-Raman spectrum of the medicines in different mineral classes are analyzed and summarized, and the medicines in the mineral classes with similar properties and easy confusion are identified according to different positions of the characteristic peaks.
To further clarify the objects, methods and advantages of the present invention, embodiments of the present invention are described in further detail below with reference to the accompanying drawings.
The invention provides a method for quickly identifying mineral type medicines with similar properties and easy confusion, which is based on a terahertz-Raman spectrum technology and comprises the following steps:
spectrum collection: collecting spectrums of several mineral medicines with similar properties and easy confusion by adopting a terahertz-Raman spectrum system in sequence;
the procedure for spectrum acquisition was as follows: placing mineral medicine to be measured on an objective table, wherein the excitation wavelength of a Raman spectrum system is 785nm, and the measurement range of the Raman spectrum is set to be 0-300cm-1The laser power is 70mW, the integration time is 10s, and the accumulated times are 3 times;
several mineral medicines with similar properties and easy confusion include but are not limited to Gypsum Fibrosum, Ophicalcitum, Natrii sulfas, Alumen, asteriscus Pseudosciaenae, and Borax;
spectrum pretreatment: sequentially carrying out the steps of removing cosmic rays, denoising and baseline removal on the terahertz-Raman spectrum of the mineral medicine to obtain the mineral medicineThe pretreatment terahertz-Raman spectrum of the traditional Chinese medicine is shown in figure 1. As can be clearly seen from FIG. 1, it is in the range of 0-300cm-1In the spectral range, different minerals have different terahertz-Raman spectra;
fast identification of drugs in minerals: the method is characterized in that the method identifies the easily confused medicines in the mineral classes with similar properties by analyzing the characteristic peaks of the terahertz-Raman spectrum of the medicines in different mineral classes. Characteristic peaks of terahertz Raman spectra of different mineral drugs are analyzed, and positions of the characteristic peaks of the sample are summarized as shown in Table 1.
TABLE 1
As can be seen from Table 1, the Raman spectra of different samples have different characteristic peaks, so that the drugs of mineral species can be rapidly identified according to the different positions of the characteristic peaks.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.
Claims (2)
1. A method for quickly identifying easily confused mineral medicines with similar properties is characterized by comprising the following steps: spectrum collection: collecting spectrums of several mineral medicines with similar properties and easy confusion by adopting a terahertz-Raman spectrum system in sequence; spectrum pretreatment: preprocessing the terahertz-Raman spectrum of a mineral traditional Chinese medicine sample to obtain a preprocessed spectrogram of the sample; fast identification of drugs in minerals: analyzing the characteristic peaks of the terahertz-Raman spectrum of the medicines in different mineral classes, and identifying the medicines in the mineral classes with similar properties and easy confusion.
2. The similarly characterized, confusable minerals of claim 1The method for quickly identifying the medicine is characterized in that the detailed process of spectrum acquisition is as follows: sequentially placing mineral medicines to be measured on an objective table, wherein the excitation wavelength of a Raman spectrum system is 785nm, and the measurement range of the Raman spectrum is set to be 0-300cm-1The laser power is 70mW, the integration time is 10s, and the accumulated times are 3 times;
several mineral Chinese medicines with similar properties and easy confusion include Gypsum Fibrosum, Ophicalcitum, Natrii sulfas, Alumen, asteriscus Pseudosciaenae, and Borax; the authenticity of the measured sample is confirmed by comparing with the experimental results in the prior reference documents;
the detailed procedure of the spectral pre-processing is as follows: sequentially carrying out cosmic ray removal, denoising and baseline removal on the terahertz-Raman spectrum of the mineral medicine to obtain a preprocessed terahertz-Raman spectrum of the mineral medicine;
analyzing and summarizing characteristic peaks of terahertz-Raman spectra of the medicines in different mineral classes, and identifying the medicines in the mineral classes with similar properties and easy confusion according to different positions of the characteristic peaks.
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Cited By (1)
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| CN115541557A (en) * | 2022-10-28 | 2022-12-30 | 中国水利水电科学研究院 | Method for detecting algae and minerals in plastic surface biological film |
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Patent Citations (2)
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| CN110208239A (en) * | 2019-04-08 | 2019-09-06 | 大连理工大学 | Terahertz Raman spectra detection process based on time-domain frequency domain compacting stray light |
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