Identification method
Shape identification
The dry skin is in irregular patches, troughs, or half-rolls, varying in length and width, and 3-7 mm thick. The outer surface is rough, gray-brown or gray-brown, with intertwined longitudinal wrinkles and spotted gray-brown lenticels. The rough skin was light yellow; the inner surface was white or pale yellow. Quality tough, not easily broken, cross-section fiber, showing a layer of sheet, easy to peel into thin slices, layers of yellow and white, each layer can be seen, very fine mesh. Odorless and bitter. Root bark is irregularly flaky or curled, 1-5 mm thick. The outer surface is gray brown or brownish purple, slightly shiny, rough, and numerous cracks. The dry bark is preferably fine bark and young bark with many lenticels visible.
Microscopic identification
Cross-section of dry skin: There are 3-4 cork tissue layers on the outside. The cork layer has often penetrated into the phloem. Old Pidor has not seen the cortex. The phloem has a tangentially elongated fiber bundle and thin-walled tissue arranged in layers; the parenchymal cells surrounding the fiber bundle contain crystalline calcium oxalate crystals to form a crystalline sheath fiber; the diameter of the cubic crystal is 6-31 μm, and the fiber thickness is thick and woody. Primary ray horns, cells in the opening often contain calcium oxalate clusters. Parenchyma cells contain starch granules, round, round or ovoid, in units or multiple grains consisting of 2-5 stalks. Root bark cross section. The thicker layer of the skin, the visible rays inside and the waste sieve group; cork layer is multi-row cork cells. The bast phloem rays of the phloem are wavy and curved, with a width of 3-5 rows of cells; the bast fibers are arranged in multiple layers of intermittent rings, and the cells around the fiber bundle contain calcium oxalate crystals to form crystal fibers. This product parenchyma cells contain starch grains, and some contain calcium oxalate crystals.
Powder characteristics: reddish brown. 1 The fiber is very long, 15-27μm in diameter, and the wall is very thick and woody. The cells around the fiber bundle often contain calcium oxalate crystals to form crystalline fibers; the crystallized cell walls are thickened unevenly to about 14μm in thickness. Standing square or multi-sided, diameter 13-29μm. (2) The lichen parenchyma parenchyma cells often adhere to the fiber bundles, resembling rectangles, long strips or round shapes, 43-130 μm in length, 15-37 μm in diameter, slightly thicker in wall, slightly woody, with sparse pits. In addition, there are cork tissue fragments, some containing reddish-brown; starch grain diameter of about 13μm; rare clusters of crystals.
Chemical identification
Take this product powder about 1g, add ether 10ml, dip 2h, always shake, filter. Take a filter 1ml, dry, drop a few drops of dimethylaminobenzaldehyde test solution, red; another filtrate 1ml, set in the test tube, after evaporation, vinegar grinding 1ml, stirring, plus the number of sulfate along the wall Dripping, vinegar grinding layer is green, sulfuric acid layer is red to purple
Shandong Chunyu Water-saving Irrigation Equipment Co., Ltd., founded in 2011, is located in Laiwu High-tech Zone, Jinan City. It is a high-tech enterprise focusing on innovative and efficient emitter mold manufacturing and emitter product research and development and production. After nearly ten years of innovation and development, it is the invisible champion enterprise in Shandong Province, and now it is in a leading position in this field in China.
Spring rain people-oriented, build talent highland. At present, the company has 16 high, fine and advanced technical personnel, and cooperates with a number of scientific research institutes, forming a mold design, emitter testing, flow testing and other professional technical personnel team. In recent years, it has obtained 3 invention patents, 33 utility model patents and 3 patent awards. In 2019, it was identified as an intellectual property advantage enterprise in Jinan. It has undertaken 4 provincial science and technology innovation projects and won 2 second prizes of Shandong Science and Technology Progress Award. The company has built Jinan drip emitter mold engineering technology research center, the company has a slow wire cutting, CNC machining center, precision EDM machine, 3D projection measuring instrument, CNC engraving, laser engraving and other advanced processing equipment. Mature technology and rich experience support the excellent quality of Chunyu. Spring Rain pays attention to every link of production, implements 8S management, strictly controls the quality of products at the beginning, the middle and the end, and forms the seamless link of production management. The company has independently researched and developed flat emitter molds with full hot runner, cylindrical emitter molds with full hot runner and other products. With excellent quality, competitive price and good after-sales service, the company is well known at home and abroad, and has been sold well in Egypt, India, Iran, Turkey, Saudi Arabia, the United States and other countries.
With the vision of "building a global professional emitter mold supplier" and the mission of "providing solutions for efficient and innovative production of global water-saving irrigation enterprises", the company takes "scientific and technological innovation to scale new heights; Keep improving, the pursuit of excellence; Honesty and trustworthiness, win-win cooperation "for the values of the enterprise. For the construction of water - saving and resource-saving society to make a positive contribution.
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Shandong Spring Rain Water Saving Irrigation Equipment Co.,Ltd. , https://www.drippermould.com