Instant micro and optical identification of traditional Chinese drug realgar powder
Active Publication Date: 2012-08-01
SICHUAN SINCO PHARMA
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Problems solved by technology
The current Pharmacopoeia stipulates that when realgar is used as medicine, its main component content should not be less than 90.0%. [1] , but the existing detection methods can not accurately identify the impurity components of realgar, and lack of understanding of the main components and impurities in realgar. Such a situation is a great threat to the safety and dosage of realgar.
[0004] As a monoclinic mineral, realgar can also be qualitatively identified through mineral flakes. However, traditional mineral flakes require time-consuming and labor-intensive processes such as slicing, boiling, and grinding to prepare larger pieces of minerals. Mineral traditional Chinese medicine is often It appears in the medical market in the form of powder, and its form has undergone major changes. The traditional method of identifying minerals by preparing mineral flakes is greatly limited, and the long flake preparation process is not conducive to the rapid and accurate identification of drugs. Instant Inspection and Judgment
Method used
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Experimental program
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Effect test
Embodiment 1
[0033] Example 1: Identification features of realgar powder particle mounts under reflected crossed polarized light.
[0034] The crystal form of realgar powder under the reflected light microscope is intact, completely cleaved, orange-red to red, transparent, especially under reflected cross-polarized light, the morphological structure of realgar grains is clearer due to the black background.
Embodiment 2
[0035] Example 2: Identification features of realgar powder granular films under ordinary transmitted light.
[0036] Realgar powder is orange-yellow under ordinary transmitted light, translucent to transparent, and there are obvious Baker's lines around the particles.
Embodiment 3
[0037] Example 3: Identification characteristics of realgar powder granular film under transmission of single polarized light.
[0038] The realgar powder is orange under the transmission of single polarized light, showing ortho-high protrusions, translucent to transparent, and the Baker's line is very bright.
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The present invention discloses instant micro and optical identification of traditional Chinese drug realgar powder. According to the present invention, technical problems are solved through the following technical schemes. The instant micro and optical identification method of the traditional Chinese drug realgar powder is characterized by: preparing a sample: the realgar powder is prepared into grain slides and / or is prepared into oil slides, and / or is prepared into optical grain films. Test equipment of the method adopts a transmission polarizing optical microscope. Test steps comprise: a, sampling and judging purity of the sample according to morphological type, homogeneity, color, and the like; b, adopting the microscope to observe projections, rough surface, Becke lines and other characteristics of the oil slides and the grain films to determine the types and the characteristics of impurity mineral; c, distinguish the impurity mineral from similar minerals; and d, distinguish the realgar from counterfeits. According to the present invention, the established identification standards comprise: a, confirming the micro-optical characteristics of the traditional Chinese drug realgar powder; b, identifying the existing forms and the types of the main impurity mineral in the realgar; and c, identifying the micro-optical characteristics of the common realgar counterfeits.
Description
technical field [0001] The invention relates to a method for identifying mineral traditional Chinese medicine powder, judging the authenticity of realgar of traditional Chinese medicine, especially the instant identification of the optical characteristics and microscopic characteristics of realgar of traditional Chinese medicine. Background technique [0002] Realgar is an important mineral medicine. Especially in recent years, realgar and its compound preparations have achieved good results in the treatment of leukemia. As a toxic drug, the dosage and course of treatment of realgar when used to treat malignant tumors are significantly increased compared with traditional usage, which requires more effective quality control of realgar. [0003] Realgar, a traditional Chinese medicine, comes from natural minerals, and the grades of natural ores vary greatly. Realgar often coexists with orpiment, and sometimes coexists with arsenopyrite, pyrite, marcasite, etc. [2] , and often...
Claims
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IPC IPC(8): G01N21/84G01N15/00
Inventor 张志杰黄璐琦
Owner SICHUAN SINCO PHARMA