Herbal identification
The spores are fine, uniform particles, and they are mostly powdered, brownish or light brown. Lightweight, with a smooth sense of hand rub, placed in the palm of your hand, can slide down between the fingers. Observed under the enlarged microscope is a tetrahedron with a uniform size, a nearly round or blunt triangle, and a triangular pyramidal particle. The top view is triangularly tapered and
The trigeminal fissures can be seen in Haijinsha, and the lateral view of the triangulation can be seen as a triangle. The appearance of granular fine lines on the outer wall can be seen. There are two kinds of empirical identification:
Fire test method: Take a small amount of powder and place it on a burning paper. Immediately it emits a high flame, and it has splashes and sounds, but no ash residues. Residues were found to be doped with mud.
Water test method: Take a small amount of sea gold sand, sprinkle it on the water, float on the surface of the water without sinking as the genuine product, sinking, showing soil doping.
Identification of traits: The whole plant is mostly shaped. Slender stems, twisted twist, up to 1m above, stalk color. More branches, longer
Short range. The leaves were born on both sides of the short branches, type 2, and the grass was shrinking. Nutritional tip triangle, two pinnate; 2-4 pairs of zygote, alternate, ovoid, 4-8cm long, 3-6cm wide; 2-3 pairs of zygote, ovate-triangular, palmate 3 cleft, lobes short and broad, top lobes 2-3cm long, 6-8mm wide, margins irregularly scalloped; spores ovate-triangular, length and width subequal, 10-20cm; -5 pairs, alternate, oblong lanceolate, 5-10cm long, 4-6cm wide; 3-4 pairs of two plumes,
Sea Sands - Identify ovate triangles. There is a tassel-shaped sporangial spike on the underside of the plume, dark brown. Lightweight, crisp, easy to break. Gas slightly, tasteless.
Microscopic identification
Stem cross-section: Similar to rhizomes, see the "Hai Jin Sha Root" section, the difference is: thick-walled tissue 5-6 cells, the walls are thin; basic parenchyma is broader; Kay's point of the endothelial cells is obvious, There is no yellow oil inside the cell, and the xylem in the vascular bundle is trifurcated.
Leaf cross-section: 1 epidermal cell, outer multicellular or unicellular nonglandular hair, yellow-brown; leaf mesophyll palisade tissue and spongy tissue differentiation is not complete; the main vascular bundle is peripherally tough, the main vein is thick at the upper and lower epidermis Wall tissue, woody or slightly woody.
Haijinsha
Leaf surface view: Peripheral wall of epidermis cells is thin, deep wavy, stomata located in the lower epidermis, round or oblong, diameter 24-31μm, secondary guard cells 2-4, straight axis or infinitive. Non-glandular hairs 1-4 cells, apical cells longer, 126-690μm long, diameter 18-32μm, wall thickness to 5μm, some cells contain brown matter.
Chemical identification of traditional Chinese medicine
TLC: Take 2g of seagrass, set in Soxhlet extractor, degrease with petroleum ether, extract with 95% ethanol to colorless, recover ethanol, dissolve the residue with 25ml of ethyl acetate, and add 2% sodium bicarbonate. The liquid was extracted to a colorless solution, the extract was concentrated to dryness, and 95% ethanol was added to a volume of 2 ml to prepare a spotting solution. Another caffeic acid standard product was prepared as a reference test solution. 10 μl of the sample solution and the control solution were spotted on the polyamide film, respectively, and the benzene-methanol-polyacetic acid (45:20:6) was used as a developing agent with a 13 cm pitch and observed under a UV lamp. Blue fluorescence.