Identification of raw herbs Character identification, seed flat round or flat oval, long 2-3.5mm, width 2-3mm. The surface is tan, rough, with fine verrucose projections and short streaks, with a prominent umbilicus at one end. Hard, cut open, seed coat thin; cotyledons 2, hypertrophy, translucent, oily. Gas slightly, tasteless, bitter. It is better to use full particles. Identification Seed coat was glandular hairs and non-glandular hairs. One cell in the lower cortex. Pigment cells contain brown-red substances, and there are large-shaped parenchyma cells in the lateral near-lateral cortex, containing calcium oxalate crystals. One cell in the seed coat, with a slightly thicker wall. Cotyledons cell granules and aleurone grains. Powder characteristics Light Brown. 1 The circumflex wall of epidermis cells is wavy, with glandular hairs or non-glandular hairs. 3 Single glandular hairs or 2-8 cells, 20-60 μm in diameter; stalks are single cells. 3 Non-glandular hairs are single cells, with glandular hairs containing yellow-brown substances. 4 containing calcium oxalate needle cells oval, needle length of about 50μm. 5 The inner seed coat cells are rectangular or polygonal and the walls are slightly thickened.
romatographic and use double-antibodyromatographic and use double-antibodysandwich method to detect antigen. Whenthe concentration of antigen in specimen ishigher than the minimum detection limit, theviral antigen will form complexes withlabeled antibodies first. Under chromatogra-phy, the complexes move forward along thenitrocellulose membrane till captured bypre-coated monoclonal antibody ofindetection zone.Through the visible color tointerprete the test results.
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