49results about How to "Simple storage conditions" patented technology

The invention discloses a manufacturing method for liquid film closed type plant primary-color herbarium specimens. The manufacturing method comprises the procedures of dehydrating the specimens, spraying, drying and storing, wherein the specimen dehydration procedure is to clear leaves of the collected fresh plants, remove dust and dirt and absorb water by using absorbent paper or perform plasticizing dehydration by using polyethylene glycol; the spraying procedure is to spray varnish serving as a film medium onto the surfaces of the plant leaves, so that one layer of paint film covers the surfaces of the leaves uniformly; the painted leaves are placed on a rack and the varnish film is dried; and the specimens which are inspected to be qualified are stored. The varnish is sprayed on the herbarium specimens based on a paint film-forming technological principle, so that one layer of paint film is adhered to and wrapped on the surface of each specimen; and each herbarium specimen is subjected to film sealing by drying the surface of each specimen. The adopted varnish is transparent and colorless; and after the film is sealed, the light transmittance is high, the original state of the specimen is not damaged and destroyed and the original color can be observed. After the varnish is formed into the film, air can be isolated, so color fading and deterioration are avoided, the storage condition is simplified and the service life is prolonged.

The invention discloses a method for solving flowering asynchronism during crossbreeding of cymbidium. The method includes the following steps: picking out an anther cap of cymbidium through a sterilized picking tool when the petal of a cymbidium simple flower unfolds; picking the cymbidium pollinium to a clean and sterile container through the sterilized picking tool and sealing the pollinium in the sterile container; storing the container in a dark place at the temperature of 4-6 DEG C; unfreezing the stored pollinium at the room temperature for 20-30 min when the female parent orchid blooms; adding sterile water and performing rewetting for 20-30 min to obtain the vital pollen. According to the invention, the cymbidium pollinium stored as per the method provided by the invention can be stored for 3-12 months without going mouldy; after unfreezing and rewetting, and measured by the 2,3,5-triphenyltetrazolium chloride staining method, the vitality of the pollen stored according to the method is high, the success rate of hand pollination is high, and the hybridization success rate is high.

The invention discloses (NH4+)xMoS2 inserting compound and x is 0.2-3.0. The method includes the following steps: taking layer inserting to supramoly by using butyl lithium to gain layer inserting supramoly, making supramoly supernatant liquid, making (NH4+)xMoS2 layer inserting compound in ammonium chloride solution. The invention could be used as a good solid lubricant and could heating with alkali to gain single layer supramoly. It solves the storing problem of single layer of supramoly. It has crucial application value in mechanical, electric, aviation and spaceflight, chemical, etc.

The present invention discloses a novel gas-generating photoacoustic imaging contrast agent and a preparation method thereof, and belongs to the field of clinical medicine. The novel gas-generating photoacoustic imaging contrast agent comprises a solution, microspheres and gas, wherein the solution is a saturated ammonium bicarbonate solution and is wrapped inside the microspheres, the microspheres are liposome microspheres, and the components in the formula of the wall of the liposome microspheres comprise polyethylene glycol-distearoyl phosphatidyl ethanolamine, dipalmitoyl phosphatidyl choline and cholesterol. According to the present invention, the saturated ammonium bicarbonate solution is used, such that advantages of safety, efficiency and production cost reducing are provided; the contrast agent can be used for photoacoustic imaging of superficial tissues; the produced microspheres can be stored at the low temperature; the membrane material is non-toxic and does not have side effects; the microspheres have characteristics of small particle size, stable performance, and good imaging effect; and the hemodynamics of the whole body or any one system is not affected.

The invention discloses a novel gas-producing photoacoustic imaging contrast agent and a preparation method thereof, belonging to the field of clinical medicine. A new type of gas-producing photoacoustic imaging contrast agent, the photoacoustic contrast agent includes a solution, microspheres and gas, the solution is a saturated solution of ammonium bicarbonate, wrapped in the microspheres; the microspheres are lipid Plastid microspheres, the formula of the liposome microsphere wall is: polyethylene glycol-distearoylphosphatidylethanolamine, dipalmitoylphosphatidylcholine, cholesterol; the present invention has the following advantages: adopt bicarbonate Ammonium saturated solution is not only safe, effective and reduces production costs; it can be used for photoacoustic imaging of superficial tissues; the produced microspheres are stored at low temperature; the membrane material is non-toxic and has no side effects; the microspheres have small particle size, stable performance and excellent imaging effect Good; does not affect systemic or systemic hemodynamics.

The present invention relates to a safe and stable monosialotetrahexosylganglioside sodium preparation, which is an infusion, wherein per 1 ml of water for injection contains less than 5 g of the monosialotetrahexosylganglioside sodium. The monosialotetrahexosylganglioside sodium preparation has characteristics of high clarity, good main drug solubility, high stability, no safety risk during a use process, simple storage condition, easy long-term storage, convenient clinical use, secondary pollution avoiding, and substantially convent acute patient use.

The invention relates to an active biological recombiner and a preparation method thereof. Raw materials of the recombiner comprise the following components, by weight: 0.3-08% of sake yeast liquid, 0.3-08% of streptomyces griseus liquid, 70-90% of rice bran and the balance of water. A maltose medium is utilized to culture the sake yeast liquid and the streptomyces griseus liquid; then the raw materials are mixed and fermented to obtain the active biological recombiner. Compared with a prior art, the active biological recombiner of the invention is cultured by using rice bran as a main inocula carrier and sake yeast and streptomyces griseus as main starters, can degrade natural organic pollutants in the environment, has advantages of low manufacture cost, high production power, long period of validity, strong stability, simple storage conditions, convenience for transportation, composite compatibility of different bacteria, large pollution resistance span and large environment tolerance elasticity.

The invention relates to a microbial agent for humus organic matter degradation and a preparation method thereof. The microbial agent is prepared from 0.3-0.6% of actinomycetes liquid, 0.3-0.6% of white-rot mold liquid, 70-90% of rice bran and the balance water. The microbial agent has a special effect on quickly degrading lignin and cellulosic materials. Multiple microbial strains are mixed together, the diversity coexisting purpose of microorganisms is achieved, and the degrading range of the product to various humus organic matters can be enlarged. Diversity coexisting of the microbial strains is achieved, the microorganisms alternately cooperate at different stages and environments, the weather resistance of the product is enhanced, and degrading is accelerated.

The invention discloses an organic nickel ion battery electrolyte and an organic nickel ion battery, and belongs to the field of nickel ion batteries. The organic nickel ion battery comprises a positive electrode, a negative electrode, a diaphragm and electrolyte, the electrolyte comprises soluble nickel salt and an organic ether solvent. The invention provides a concept of an organic nickel ion battery for the first time, and discloses an organic electrolyte capable of actually working, and the organic nickel ion battery is successfully assembled. The battery has a voltage window as high as 1.7 V, and has good rate capability and cycle performance. Compared with a traditional lithium ion battery, the nickel ion battery does not have the problem that an electrode material is dissolved in electrolyte, and the service life of the battery is greatly prolonged. Meanwhile, the electrode plate and the electrolyte are simple to prepare, show excellent electrochemical performance and are expected to become a precedent of a next-generation secondary battery, and the technology certainly enriches a current energy source storage system and has great application value and prospect.

The invention provides a special efficient coagulant for strongly-acidic antimony-containing wastewater. The special efficient coagulant for the strongly-acidic antimony-containing wastewater is prepared by taking tetraethyl orthosilicate (TEOS) and reduced glutathione (GSH) as raw materials, sodium bicarbonate (NaHCO3) and hydrogen peroxide (H2O2) as activating agents and glutaraldehyde as a cross-linking agent. The special efficient coagulant provided by the invention solves the technical problems of high treatment cost and complex operation due to the fact that a pH value needs to be adjusted to 4-10 in advance when the antimony-containing wastewater is treated by using a coagulation method in the prior art.

The present invention relates to the technical field of biological control of agricultural pests, in particular to a method for artificial seed conservation and breeding of tobacco powder borer, which can provide insect sources in time, and then provide a large number of hosts for the breeding of natural enemy insects, which is helpful for exploring the adaptation of insects to the environment Mechanism; including the following steps: (1) equipment preparation; (2) laying the tobacco leaf layer; (3) selecting robust host larvae; (4) laying in layers: place the tobacco powder borer larvae evenly on the tobacco leaves in the plastic box, and place the density About 0.5 strips / cm 2 , Repeat steps (2) and (3) after each layer is full, until it is 1cm away from the box opening, spread tobacco leaves on the top layer, and close the box cover; (5) Store in the refrigerator; (6) Restore vitality; (7) Pupation: put the surviving larvae of Tobacillus moth into larvae cages and feed them until the larvae of Tobacillus melanogaster pupate normally to obtain pupae of Tobacillus moth; (8) Eclosion; (9) Egg mass collection and hatching; (10) Larval feeding.

The invention discloses a preservation method of trace divalent sulfide ions in a water sample. The preservation method comprises the following operating steps: collecting a water sample containing divalent sulfide ions, immediately adding sodium hydroxide into the water sample until the concentration of hydroxy radicals in the water sample reaches 0.1-0.2 mol / L, and leaving to stand for no more than 24 h' s preservation at the room temperature. The invention further discloses an automatic analysis method of trace divalent sulfide ions in the water sample; the automatic analysis method uses analytical instruments comprising a first low pressure pump, a second low pressure pump, an injection valve, a first mixer, a second mixer, a reactor, an optical flow-through cell, an optical detector and a computer processing system and further comprises the following steps: (1) determining a base line; (2) determining a spectrogram of divalent sulfide ions in a test sample; (3) drawing a standard work curve; (4) calculating the concentration of divalent sulfide ions to be measured in the test sample according to the peak height value of the spectrogram of the divalent sulfide ions and the regression equation of the working curve. According to the preservation method and the automatic analysis method of trace divalent sulfide ions in the water sample, provided by the invention, preservation operations of divalent sulfide ions in the water sample are simplified, and low-cost automatic analysis of divalent sulfide ions is also realized.

The invention discloses a method for rapidly detecting whether pH value of an ammonium nitrate solution in the preparation of emulsion explosive is qualified, and belongs to the technical field of explosive manufacturing. The method of the invention comprises the following steps: (1) an ammonium nitrate solution to be measured is fetched and divided into several parts, a dimethyl yellow indicatoris added into a first part, and a bromocresol green indicator is added into a second part; and (b) whether pH value of the ammonium nitrate solution to be measured is qualified is judged according todiscoloration situation of the solution to be measured; when the first part of solution to be measured turns orange and the second part of solution to be measured turns yellow-green, it shows that thesolution to be measured is qualified; otherwise, the solution to be measured is unqualified. According to the invention, whether pH value of the solution is within a reasonable range is convenientlyjudged. By the method, cost is reduced, work efficiency is further raised, and new thinking is provided for on-line monitoring of pH value.