The identification method of dumplings

Identification method

Microscopic identification

Pericarp cross-section; exocarp 5-8 thick-walled cells, cells containing brown matter. The mesocarp consists of parenchyma, thick-walled cell rings, and vascular bundles. The parenchyma cells are round, with 2 to 5 parenchymal cells between the inside of the outer pericarp and the cords. The cells have a diameter of 30-50 (-110) μm. The color is light yellow and the walls are thick. The cells contain brown resin masses ( In case of chlorinated high concentric test solution, it is black (and larger oil droplets. The thick-walled cell ring is composed of a large number of fibrous thick-walled cells in a criss-cross pattern, extending in multiple tangential directions. The cell length is 70-130 (-365) μm, and the diameter is 5- Most of the vascular bundles are irregularly oriented, and sometimes the branches and outer exine skin have a diameter of 7-20 μm, and the pores are more common, and the diameter of the proximal nucleus is 60 μm.The parenchyma cells scattered in the proximal catheter contain oxalic acid. Calcium clusters, 30-80μm in diameter.

Chemical identification

Take this product to nuclear powder 3g, add ethanol 10ml, ultrasonic treatment for 20 minutes, the supernatant as a test solution. Another gallic acid reference substance was added and ethanol was added to prepare a 0.5 mg solution per 1 ml as a reference solution. According to the TLC (Appendix VI B) test, 3 μl of each of the above two solutions was pipetted on the same silica gel G plate, and chloroform-ethyl acetate-formic acid (6:4:1) was used as a developing agent. Unfold, remove, dry, and spray with 2% ferric chloride in ethanol. In the chromatogram of the test sample, the spot of the same color was observed at the position corresponding to the chromatogram of the reference substance.

Rechargeable Hearing Aid

Rechargeable Hearing Aid

Rechargeable Hearing Aid

Shenzhen Sunshine Technology Co.,Ltd , https://www.yatwinsz.com