Method for identifying mineral drugs based on polarized light microscopy technology

Abstract

The invention relates to the field of polarized light detectionand particularly relates to a method for identifying mineral drugs based on a polarized light microscopy technology. The method comprisesthe following steps of (1) putting mineral medicine with the thickness of 1-2mm on a coarse grinding stone, adding a proper amount of water, and grinding the mineral medicine back and forth on the coarse grinding stone until the two sides are ground to be smooth and the thickness is 0.2-0.9 mm; (2) transferring the mineral medicine ground in the step (1) to a fine grinding stone, adding the water, grinding the mineral medicine back and forth till the mineral medicine is transparent, washing the ground mineral medicine with water, treating the ground mineral medicine with ethanol, and fillingthe ground mineral medicine with a glyceryl ethanol test solution; and (3) putting the abrasive disc prepared in the step (2) under a polarized light microscope with a compensator, setting the angle of semi-polarized light, and shooting under a 10-time objective lens by adopting a large-image splicing technology in combination with a real-time depth-of-field extended imaging technology to obtain color image data. According to the method, the birefringent mineral structure can be accurately positioned, and the multi-color property of anisotropy of structures of different parts of the mineral under polarized light is fully displayed.

Description

technical field [0001] The invention relates to the field of polarized light detection, in particular to a method for identifying mineral medicine based on polarized light microscopy. Background technique [0002] The properties and components of jade and mineral medicines are different due to the influence of geological and physical and chemical conditions during the formation process, and their identification work is difficult. Relying on its unique advantages of intuition, simplicity, speed, ease, economy, and environmental protection, microscopic identification has been widely used in the identification of traditional Chinese medicine. However, there is a lack of research on microscopic identification of mineral drugs in the previous editions of "Chinese Pharmacopoeia" and literature records, and most of the existing microscopic identification techniques are observed under normal light and orthogonally polarized light, but observation under normal light Panlong jade, Pa...

AI Technical Summary

Problems solved by technology

However, there is a lack of research on microscopic identification of mineral drugs in the previous editions of "Chinese Pharmacopoeia" and literature records, and most of the existing microscopic identification techniques are observed under normal light and orthogonally polarized light, but observation under normal light Panlong jade, Panlong black jade, and mineral grinding slices all exhibit monochromatic phenomena, and the birefringent mineral structure cannot be accurately located; although observation under orthogonal polarized light can clearly and intuitively locate the birefringent mineral structure, it can also show various parts of different parts. Anisotropy, but it is difficult to clearly observe its surface texture and fine structure

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