Identification Method of Infrared Spectrum Analysis of Whole Cordyceps Sinensis
A technology of infrared spectrum analysis and Cordyceps sinensis, which is applied in the direction of material analysis, analysis materials, and measuring devices through optical means, can solve the problem of difficult to distinguish the authenticity of the whole Cordyceps sinensis, and achieve rapid testing, easy operation, and rapid analysis methods Effect
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Embodiment 1
[0058] Example 1 Drawing of the standard spectrum of the whole plant of Cordyceps sinensis, collection of the necessary characteristic peaks of the infrared spectrum of the whole plant of Cordyceps sinensis and the collection of common characteristic peaks of the infrared spectrum of the whole plant of Cordyceps sinensis, and determination of the lower threshold of the correlation coefficient
[0059] 1) Sample source and processing
[0060] 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.
[0061] 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.
[0062] 2) Infra...
Embodiment 2
[0084] Embodiment 2 Distinguishing authenticity experiment
[0085] 1) Sample source and processing
[0086] The numbers of commercially available Cordyceps Gurney are G1, G2, G3, and G4.
[0087] The sample was processed in accordance with the relevant regulations of the Pharmacopoeia of the People's Republic of China. The whole herb part of the sample was naturally dried and then pulverized. The fine powder passed through a 200-mesh sieve was used for infrared spectrum testing.
[0088] 2) Infrared Spectroscopy Instrument
[0089] All samples were tested using SpectrumOne Fourier Transform Infrared Spectrometer from PerkinElmer, USA.
[0090] 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.
[0091] 3) Infrared Spectroscopy Test Method
[0092] The samples were tested by potassium bromide (KBr)...
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