Method for determining content of pyritum in Chinese patent medicine

A measurement method and technology of Chinese patent medicine, applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of unreported analysis, achieve accurate measurement results, be conducive to environmental protection, and save the effect of test preparation time

Pending Publication Date: 2020-12-25
NAT INST FOR FOOD & DRUG CONTROL
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there is no report on the application of EDX in the analysis of Chinese patent medicines

Method used

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  • Method for determining content of pyritum in Chinese patent medicine
  • Method for determining content of pyritum in Chinese patent medicine
  • Method for determining content of pyritum in Chinese patent medicine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The content determination of natural copper in the Shujindingtong tablet of embodiment one

[0023] 1. Measurement method

[0024] Take Shujindingtong Tablets, with or without the coating, such as figure 1 As shown, placed in an automatic sampler, using Shimadzu EDX-7000 energy dispersive X-ray fluorescence spectrometer to quantitatively measure the intensity of each element, according to the intensity of each element line, combined with CHO balance and FeS 2 The molecular formula is used to calculate the natural copper content in the sample. The analysis time was 6.6 minutes, and the instrument parameters were set as shown in Table 1:

[0025] Table 1 Energy dispersive X-ray fluorescence test conditions

[0026]

[0027] 2. Specific test

[0028] Take ground beetle, safflower, drynaria, angelica, frankincense, myrrh, rhubarb, and borax, prepare natural copper-deficient negative samples according to the prescription ratio of Shujindingtong Tablets, and measure ac...

Embodiment 2

[0040] Example 2 Determination of Natural Copper Content in Huoxue Zhitong Powder

[0041] 1. Measurement method

[0042] Take Huoxue Zhitong Powder, put it in the autosampler, and use Shimadzu EDX-7000 energy dispersive X-ray fluorescence spectrometer to quantitatively measure the intensity of each element. According to the intensity of the spectral line of each element, combined with CHO balance and FeS 2 The molecular formula is used to calculate the natural copper content in the sample. The analysis time was 6.6 minutes, and the instrument parameters were set as shown in Table 3:

[0043] Table 3 Energy dispersive X-ray fluorescence test conditions

[0044]

[0045] 2. Specific test

[0046] Take angelica, notoginseng, frankincense, borneol, and ground beetle, and prepare negative samples lacking natural copper according to the prescription ratio of Huoxuezhitongsan, and measure according to the law, and the result is that no FeS is detected 2 , indicating that othe...

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Abstract

The invention belongs to the technical field of Chinese patent medicine content determination, and particularly relates to a method for determining the content of pyritum in a Chinese patent medicine.The method includes the steps that the Chinese patent medicine is taken, and all-element quantitative determination is carried out by adopting an energy dispersion type X fluorescence method. According to the method for determining the content of the pyritum in the Chinese patent medicine, the energy dispersion X-ray fluorescence spectrometry for determining the pyritum in the Chinese patent medicine is high in precision and good in repeatability, and the determined value is close to a reference value determined by an ICP-OES method. The method for determining the content of the pyritum in the Chinese patent medicine has the advantages that the operation is simple and convenient, the analysis speed is high (determining one sample takes 6.6 min), pretreatment is not needed, and nondestructive analysis can be realized.

Description

technical field [0001] The invention belongs to the technical field of content determination of Chinese patent medicines, in particular to a method for determining the content of natural copper in Chinese patent medicines. Background technique [0002] Natural copper is a sulfide mineral pyrite group pyrite, mainly containing iron disulfide (FeS 2 ), is a commonly used mineral Chinese medicinal material, which has the functions of dispelling blood stasis, relieving pain, and renewing tendons and bones. It is used for bruises, tendon fractures, bruises and pains. For bruises and other diseases. FeS 2 It is covalently bonded and difficult to dissolve in dilute acid. There are few reports on the determination of natural copper in Chinese patent medicines. In the article published by Hu Jun et al. - Determination of Natural Copper and Total Iron in Huoxuezhitong Capsules (Journal of Jiangxi University of Traditional Chinese Medicine, 2003), the content of natural copper in Ch...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N23/223G01N23/2202
CPCG01N23/2202G01N23/223G01N2223/076G01N2223/1016
Inventor 聂黎行马双成戴忠姚令文于健东邹健李静
Owner NAT INST FOR FOOD & DRUG CONTROL
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