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Infrared spectrum analysis and identification method of Cordyceps sinensis
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A technology for the analysis of Cordyceps sinensis and infrared spectroscopy, which is applied in the field of analytical chemistry, can solve the problem that the Cordyceps sinensis is difficult to distinguish between authenticity and the like, and achieves the effects of low cost, rapid analysis method and accurate results.
Active Publication Date: 2016-06-01
QINGHAI SPRING MEDICINAL RESOURCES TECHNOLOGY CO LTD
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[0004] What the present invention is to solve is the technical problem that it is difficult to distinguish the authenticity of Cordyceps sinensis
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Embodiment 1
[0056] Example 1 Standard spectrum drawing of Cordyceps sinensis, collection of necessary characteristic peaks of Cordyceps sinensis infrared spectrum and common characteristic peaks of Cordyceps sinensis infrared spectrum, and determination of the lower limit threshold of correlation coefficient
[0057] 1) Sample source and processing
[0058] Select 15 samples of Cordyceps sinensis from Yushu Prefecture in Qinghai, 15 from Guoluo Prefecture, 15 from Hainan Prefecture, 15 from Tibet, 15 from Sichuan and 8 from Gansu, and select samples of uniform size for each origin.
[0059] The sample was processed according to the relevant regulations of the Pharmacopoeia of the People's Republic of China. The insect body part of the sample was naturally dried and then pulverized. The fine powder after passing through a 200-mesh sieve was used for infrared spectrum testing.
[0060] 2) Infrared Spectroscopy Instrument
[0061] All sample tests in the present invention use the SpectrumOn...
Embodiment 2
[0082] Embodiment 2 Differentiate the true and false Concrete embodiment -- the subseat of Cordyceps Gurney and Cordyceps sinensis
[0083] 1) Sample source and processing
[0084] Commercially available Cordyceps Gurney, numbered G1, G2, G3, G4.
[0085] Sample processing refers to the relevant regulations of the Pharmacopoeia of the People's Republic of China. The sub-seat part of the sample is naturally dried and crushed. The fine powder after passing through a 200-mesh sieve is used for infrared spectrum testing.
[0086] 2) Infrared Spectroscopy Instrument
[0087] All samples were tested using SpectrumOne Fourier Transform Infrared Spectrometer from PerkinElmer, USA.
[0088] Sample test parameters: spectral scanning range 4000 ~ 400cm -1 , spectral resolution 4cm -1 , each spectrum is accumulated and scanned 16 times, and the interference of carbon dioxide and water vapor is deducted in real time.
[0089] 3) Infrared Spectroscopy Test Method
[0090] The samples ...
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Abstract
The invention relates to the field of analytical chemistry, and in particular to an infrared spectroscopic analysis and authentication method for cordyceps sinensis stromata. The invention aims at solving the technical problem that cordyceps sinensis stromata are difficult to distinguish the true from the false at present. The technical scheme for solving the technical problem of the invention is to provide a method for rapidly and accurately authenticating cordyceps sinensis stromata. The method comprises the following steps: a, drawing a standard spectrum of the cordyceps sinensis stromata; b, acquiring the necessary characteristic peaks of the infrared spectrums of the cordyceps sinensis stromata and the common characteristic peaks of the infrared spectrums of the cordyceps sinensis stromata; c, authenticating the characteristic peaks of the infrared spectrums of the tested cordyceps sinensis stroma samples and the similarity of the infrared spectrums. The invention provides a new method for rapidly and accurately authenticating the cordyceps sinensis stromata.
Description
technical field [0001] The present invention relates to the field of analytical chemistry. Specifically, it relates to an infrared spectrum analysis and identification method for Cordyceps sinensis. Background technique [0002] Cordyceps sinensis is a complex of the subunit and larvae of Cordyceps sinensis (Berk.) Sacc., a fungus of the family Ergotaceae, which parasitizes on the larvae of bat moths of the bat moth family. , antler and known as China's three major tonic. [0003] The growth environment of Cordyceps sinensis is special, and it is mainly distributed in alpine meadows and alpine shrubs at an altitude of 3000-5000 meters on the Qinghai-Tibet Plateau in my country. Qinghai, Tibet, Sichuan, Gansu and Yunnan are the main production areas of Cordyceps sinensis. The output and quality of Qinghai ranks first among all provinces and autonomous regions. Yushu and Guoluo are the main production areas of Cordyceps sinensis in Qinghai. Cordyceps sinensis cannot be arti...
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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/3563
Inventor 张雪峰徐丽王晓平
Owner QINGHAI SPRING MEDICINAL RESOURCES TECHNOLOGY CO LTD
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