42 results about "Disodium phosphate" patented technology

The invention relates to the technical field of surface strengthening treatment and coating preparation, in particular to a micro-arc oxidation electrolyte, a preparation method of the micro-arc oxidation electrolyte and a preparation method of an oxide ceramic coating on the surface of a magnesium-copper dissimilar metal material component. The invention provides a micro-arc oxidation electrolyte. The micro-arc oxidation electrolyte comprises a main film-forming agent, an arcing aid, a pH regulator, a corrosion inhibitor and water, the main film-forming agent comprises ammonium fluozirconate and / or potassium fluozirconate; the arcing aid comprises one or more of disodium hydrogen phosphate, sodium dihydrogen phosphate, ammonium dihydrogen phosphate and diammonium hydrogen phosphate; the corrosion inhibitor comprises one or more of hexamethylenetetramine, ammonium bifluoride and triethanolamine. The micro-arc oxidation electrolyte breaks through the problem that valve metal and non-valve metal cannot be subjected to arc discharge at the same time for micro-arc oxidation treatment in the micro-arc oxidation process.

The application discloses a preparation method of structural stable porous starch, which comprises the following steps: adding a hydrophilic colloid into deionized water to prepare a solution, then adding starch, mixing uniformly to obtain a compound suspension, heating the compound suspension at a crystal starting melting temperature, then performing vacuum freeze drying, grinding and sieving to obtain melting coated starch, adding the melting coated starch into a citric acid-sodium phosphate buffer solution, mixing uniformly to obtain a starch-buffer solution suspension, adding an enzyme to perform oscillation reaction, adjusting the reaction solution to alkaline to terminate the reaction after the reaction is completed, then adjusting the reaction solution to neutral, finally performing centrifugation, washing, vacuum freeze drying, grinding and sieving to obtain the structural stable porous starch. The method has the advantages of simple process and low manufacturing cost, and the prepared porous starch has excellent adsorption, structural stability and thermal stability, and solves the problems of complex manufacturing process, long preparation time, poor structural stability of the prepared porous starch and limited pore forming effect in the prior art.

The invention relates to the technical field of pharmaceutical preparations, and particularly discloses timolol maleate eye drops and a preparation method thereof. The timolol maleate eye drops provided by the invention are prepared from timolol maleate, glycine, trehalose, disodium hydrogen phosphate and sodium dihydrogen phosphate. According to the timolol maleate eye drops, the components of the timolol maleate eye drops are reasonably designed, and glycine and trehalose are added into the timolol maleate eye drops, so that degradation of active components of the timolol maleate eye drops is also reduced while the types and the dosage of auxiliary materials are reduced, and the eye drops have the advantages that the eye drops are safe and reliable; the stability of the timolol maleate eye drops placed for a long time is obviously improved, and the medication safety of the timolol maleate eye drops is ensured.

The application belongs to the technical field of medicine synthesis and provides a preparation method of phosphonic acid levomoxiflazine disodium, which comprises the following steps: taking levomoxiflazine as raw material, performing esterification through phosphorus oxychloride and hydrolysis to obtain a reaction solution containing phosphonic acid levomoxiflazine; slowly and uniformly adding a sodium hydroxide methanol solution, first adjusting pH to 6.3-7.6, filtering out impurities, then adjusting pH to 9.1-9.8, crystallizing and drying to obtain a crude product; and performing recrystallization through a water-ethanol-acetone mixed system, filtering and drying to obtain a high-purity product. The application solves the problems of high impurity content and low yield in the prior art by optimizing the amount of esterification reagent, the pH adjustment mode and the recrystallization system, the HPLC purity of the obtained phosphonic acid levomoxiflazine disodium is greater than or equal to 99.97%, the maximum single impurity content is less than or equal to 0.02%, the process is simple, easy to operate, stable and suitable for industrial amplification production.

The invention relates to the technical field of functional paste, and particularly discloses water-based conductive silver paste, which is prepared from the following components: 50 to 60 percent of silver-coated copper powder, 0.5 to 1 percent of sodium polyacrylate, 1.5 to 3 percent of sodium carboxymethyl cellulose, 0.5 to 1.5 percent of polyvinyl alcohol, 0.3 to 2.0 percent of copovidone, 0.5 to 4.0 percent of fumed silica, 0.2 to 2.0 percent of surfactant, 0.6 to 1.4 percent of cosolvent and the balance of 0.08 to 0.12 M sodium dihydrogen phosphate / disodium hydrogen phosphate buffer solution. The content of silver in the silver-coated copper powder is 25-35%; furthermore, the water-based conductive silver paste can also comprise one or more conductive filler auxiliary materials selected from carbon nanotubes and silver-plated glass beads, and the content of the conductive filler auxiliary materials is 1-4%. The water-based conductive silver paste provided by the invention has the advantages of low cost, good environmental protection property, low drying temperature, stable performance and the like, and has a very good application prospect.

The application relates to the technical field of plugging removing agents for oilfield recovery, in particular to a foamed acid plugging removing system and a preparation method thereof. The foamed acid plugging removing system comprises a foamed acid component, a foaming agent and a gas phase component, and the foamed acid component comprises, in mass ratio, oxalic acid, phosphoric acid, triethanolamine, dimethyl diallyl ammonium chloride, acetic acid, disodium phosphate and sodium nitrite in a mass ratio of (10-12):(3-5):4:2:(1.5-2.5):0.05:0.05:1. The total weight m1 of the foamed acid component and the total weight m2 of the foaming agent satisfy the relationship m1:m2=100:(1.5-2.5). The volume V1 of the gas phase component and the total volume V2 of the foamed acid component satisfy the relationship V1:V2>=40:1. The foamed acid plugging removing system can improve the plugging removing effect of an acid plugging removing agent in a heterogeneous formation, so that the plugging material dissolution rate is above 65%, the dissolution rate is above 1.20g / (m 2 ·h), the foaming multiple is above 4.0, and the stable foaming time is above 420s.

The invention provides composite wood aerogel for a lithium battery as well as a preparation method and application of the composite wood aerogel. According to the composite wood aerogel, natural wood is used as a raw material, a cellulose skeleton with an anisotropic porous structure is obtained through acid-base system delignification treatment, boric acid and activated carbon nanotubes are loaded on the cellulose skeleton in an ultrasonic cavitation mode, and the wood aerogel is formed through freeze drying; then, under the vacuum condition, phosphate phase-change materials such as disodium hydrogen phosphate dodecahydrate are adsorbed into pores of the wood aerogel, and the composite wood aerogel is obtained. According to the invention, through flame-retardant modification of boric acid, heat conduction regulation and control of activated carbon nanotubes and heat absorption and release effects of the phase change material, the composite wood aerogel has good heat management capability in the operation process of the lithium battery, and realizes cooling or thermal insulation protection under the over-temperature or low-temperature working condition of the battery; the flame-retardant and heat-insulating effects are achieved when thermal runaway occurs, thermal runaway propagation is effectively inhibited, and the safety of a lithium battery system is improved.

The invention relates to the technical field of ultraviolet shielding materials, in particular to a preparation method of a dealkalized lignin / cerium-doped hydroxyapatite two-dimensional nanosheet composite material and ultraviolet shielding application of the dealkalized lignin / cerium-doped hydroxyapatite two-dimensional nanosheet composite material. The method comprises the following steps: firstly, preparing a dealkalized lignin nanosheet through ultrasonic treatment and freeze drying, then mixing cerous nitrate, calcium chloride and disodium hydrogen phosphate powder with water to prepare a solution, and then uniformly mixing the dealkalized lignin powder with the mixed solution for microwave hydrothermal reaction; the dealkalized lignin / cerium-doped hydroxyapatite two-dimensional nanosheet composite material is obtained through centrifugation and freeze drying, a band gap with good ultraviolet absorption is obtained, the dealkalized lignin / cerium-doped hydroxyapatite two-dimensional nanosheet composite material is applied to ultraviolet shielding, the good biocompatibility of hydroxyapatite is considered, and the ultraviolet shielding effect is also provided. The large flaky hydroxyapatite nanosheets are prepared by virtue of the template effect of the dealkalized lignin, so that the agglomeration of the dealkalized lignin nanosheets is effectively inhibited, and the anti-ultraviolet effect of the dealkalized lignin / cerium-doped hydroxyapatite two-dimensional composite material is synergistically improved.

This invention belongs to the field of disinfectant technology, specifically relating to a TCCA instant effervescent tablet and its preparation method. A TCCA instant effervescent tablet, by weight percentage, is prepared from the following components: 35-50% trichloroisocyanuric acid, 8-15% urea, 10-18% anhydrous citric acid, 8-14% sodium bicarbonate, 3-8% modified starch disintegrant, 2-6% disodium hydrogen phosphate, 1-4% sodium dodecyl sulfate, 0.5-2% disodium ethylenediaminetetraacetate, 1-3% hydroxypropyl methylcellulose, 0.5-1.5% magnesium stearate, with talc to bring the total to 100%. This invention addresses the problems of existing disintegrants by preparing a modified starch disintegrant through grafting and cross-linking modifications. Experimental results show that effervescent tablets using the modified starch disintegrant of this invention have a disintegration time of only 65-112s in pure water, and the increase in disintegration time in hard water is small. After accelerated testing at 54℃ / 14d, the effective chlorine reduction rate is only 2.2-5.5%, and the increase in disintegration time is small. This indicates that the grafted and cross-linked dual-modified structure has good stability and can maintain excellent disintegration performance after heat storage.

The application provides a biological skin activity fermentation liquor with multiple effects, a preparation method thereof and a cosmetic, and relates to the cosmetic field.The method comprises the following steps: mixing camellia oleifera seed meal, protease, cellulase, lipase and water to obtain a first mixture; performing enzymolysis on the first mixture to obtain a fermentation substrate; performing second mixing on the fermentation substrate, glucose, peptone, yeast powder, disodium hydrogen phosphate and citric acid, and sterilizing to obtain a fermentation culture medium; activating bacillus velezensis through an LB culture medium to obtain a seed liquid; performing third mixing on the seed liquid and the fermentation culture medium, and performing fermentation to obtain a camellia oleifera seed meal fermentation liquor; performing centrifugation on the camellia oleifera seed meal fermentation liquor to obtain a centrifuged fermentation liquor; performing fourth mixing on the centrifuged fermentation liquor and polysaccharide-degrading enzyme, performing enzymolysis, and performing filtration to obtain the biological skin activity fermentation liquor with multiple effects.The method not only improves the high-value utilization of the camellia oleifera seed meal, but also obtains the biological skin activity fermentation liquor with high safety and outstanding activity.

The invention discloses fluconazole ear drops and a preparation method of the fluconazole ear drops, and belongs to the technical field of ear drop preparations. The composition comprises the following components in percentage by mass: 0.6%-2.0% of fluconazole, 8%-20% of propylene glycol and / or diethylene glycol monoethyl ether, 20%-32% of glycerol or caprylic / capric polyethylene glycol glyceride, 0.1%-1% of hydroxypropyl methylcellulose, 0.05%-0.2% of anhydrous disodium hydrogen phosphate and the balance of anhydrous citric acid and water. By improving the prescription of the fluconazole ear drops, the solubility of the fluconazole is increased, the content of the fluconazole in the prepared fluconazole ear drops reaches 2%, the fluconazole ear drops are good in stability, and compared with the prior art, the fluconazole ear drops have a better treatment effect on ear fungal infection.

The invention provides a rivastigmine new-form salt compound and a preparation method of a rivastigmine new-form salt compound preparation. The rivastigmine new-form salt compound is prepared from the following rivastigmine salt and auxiliary materials in percentage by mass: 1.5%-3% of rivastigmine salt, 5%-10% of polysorbate 20, 1%-8% of polyethylene glycol-4000, 0.15%-1.5% of citric acid, 0.5%-1.0% of anhydrous disodium hydrogen phosphate, 0.1%-0.5% of sodium hydroxide and 80%-90% of water for injection. The invention also discloses a method for preparing a preparation by using the compound. The preparation process of the preparation disclosed by the invention is simple, is suitable for large-scale production of enterprises, and has great market development prospects. The preparation disclosed by the invention adopts a new administration mode, and the characteristics of the preparation are utilized, so that the medicine is slowly dissolved out subcutaneously; therefore, the purpose of reducing side effects of intestinal tracts is achieved. The preparation disclosed by the invention is stable in blood concentration and good in tolerance.

This application relates to the field of functional paste technology, specifically disclosing an aqueous conductive silver paste comprising the following components: 50-60% silver-coated copper powder, 0.5-1% sodium polyacrylate, 1.5-3% sodium carboxymethyl cellulose, 0.5-1.5% polyvinyl alcohol, 0.3-2.0% co-povidone, 0.5-4.0% fumed silica, 0.2-2.0% surfactant, 0.6-1.4% co-solvent, and the balance being 0.08-0.12M sodium dihydrogen phosphate / disodium hydrogen phosphate buffer; the silver content in the silver-coated copper powder is 25-35%; furthermore, the aqueous conductive silver paste may also contain one or more conductive filler additives, namely carbon nanotubes and silver-plated glass microspheres, at a content of 1-4%. The aqueous conductive silver paste provided by this application has advantages such as low cost, good environmental friendliness, low drying temperature, and stable performance, and has good application prospects.

The invention discloses a chemiluminescence substrate solution as well as a preparation method and application thereof, and belongs to the technical field of magnetic particle chemiluminescence immunoassay. The chemiluminescent substrate solution takes a (4-chlorobenzene sulfydryl) (10-methyl-9, 10-dihydroacridine methylene) phosphate disodium salt derivative as a core luminescent substrate, the core luminescent substrate is matched with a 50-200mmol / L buffer matrix, a 0.01-10mg / L fluorescence enhancement substance containing aromatic groups and a 1-1000mg / L inorganic or organic background inhibitor and a surfactant, the pH value is controlled at 7.5-10, and 0.01-0.2% of a preservative can be selectively added. According to the substrate solution, the synergistic effect of all the components is utilized, and the advantages of short luminescence platform period, long luminescence duration and remarkably improved detection sensitivity and stability are achieved. The method can be widely applied to detection of biomarkers in chemiluminescence immunoassay, can improve the clinical detection speed, shorten the detection time and guarantee the result accuracy, and has good practical value and popularization prospect.

The present invention relates to a liquid pharmaceutical composition comprising (i) totally dissolved tretinoin or a pharmaceutically acceptable isomer thereof; (ii) d-alpha-tocopheryl polyethylene glycol 1000 succinate (TPGS); (iii) a pH-modifying agent selected in the group consisting of meglumine, potassium hydroxide (KOH), sodium hydroxide (NaOH), sodium acetate (anhydrous, trihydrate, and mixtures thereof), potassium acetate (anhydrous, trihydrate, and mixtures thereof), di-potassium hydrogenophosphate, di-sodium hydrogenophosphate, tri-sodium phosphate, tri-potassium phosphate, and mixtures thereof; and (iv) water. The present invention also relates to the medical uses of such a composition.

The application belongs to the technical field of soil remediation, and relates to an organic-inorganic composite remediation material for heavy metal passivation of farmland soil and a preparation method thereof, which comprises the following steps: dissolving magnesium salt and aluminum salt in deionized water to obtain a mixed salt solution; adding sodium hydroxide solution into the mixed salt solution, and then performing heating reaction after the addition is completed to obtain LDH slurry; adding deionized water into the LDH slurry to obtain LDH dispersion; simultaneously adding calcium chloride solution and disodium hydrogen phosphate solution into the LDH dispersion, adding alkali liquor to adjust the pH value in the process of adding, and then performing heating reaction after the addition is completed to obtain hydroxyapatite loaded LDH powder; adding citric acid into sodium alginate solution to perform reaction, and then obtaining modified sodium alginate solution; dispersing the hydroxyapatite loaded LDH powder in the modified sodium alginate solution to obtain a suspension; mixing calcium chloride solution and aluminum chloride solution to obtain a crosslinking solution; adding the suspension into the crosslinking solution to perform crosslinking and solidification, and then performing drying to obtain the organic-inorganic composite remediation material.

The application discloses fluconazole ear drops and a preparation method thereof, and belongs to the technical field of ear drop preparations. The fluconazole ear drops contain the following components in percentage by mass: 0.6%-2.0% of fluconazole, 8%-20% of propylene glycol and / or diethylene glycol monoethyl ether, 20%-32% of glycerol or capryl capric acid polyethylene glycol glycerol ester, 0.1%-1% of hydroxypropyl methyl cellulose, 0.05%-0.2% of anhydrous disodium hydrogen phosphate, and water in a residual amount. The solubility of fluconazole is increased through improvement of the prescription of the fluconazole ear drops, the content of fluconazole in the prepared fluconazole ear drops reaches 2%, and the fluconazole ear drops have good stability. Compared with the prior art, the fluconazole ear drops have a better treatment effect on ear fungal infections.

The invention relates to the field of biological stimulation agents, and discloses a biological stimulation agent for long-acting remediation of petroleum-polluted underground water and a preparation method, and the biological stimulation agent comprises the following components: 5-10 parts of KNO3, 5-10 parts of FeCl2, 1-5 parts of disodium glycerophosphate, 5-10 parts of corn peptide, 1-5 parts of humic acid and 20-50 parts of sorghum flour fermentation broth. The method comprises the following steps: 1, preparing sorghum flour fermentation liquor; and 2, preparing the multifunctional composite slow-release agent to obtain the multifunctional composite slow-release agent. The method has the beneficial effect of remarkably improving the repairing efficiency. The problem of ecological adaptability caused by rapid migration or instantaneous excessive addition is effectively avoided, and reliable material and theoretical support is provided for engineering application of an underground water bioremediation technology.

The application belongs to the technical field of crystallization, and relates to a crystallization method of inosine disodium phosphate with controllable crystal size. The method comprises the following steps: mixing inosine disodium phosphate crude product with water and adjusting pH to obtain inosine disodium phosphate crude product aqueous solution; under the condition of constant temperature stirring, adding anhydrous ethanol to the crystallization system until turbidity appears in the system, stopping the addition of ethanol, then adding inosine disodium phosphate / ethanol suspension liquid to carry out the first crystal growth; after the first crystal growth is completed, continue to add anhydrous ethanol, and at the same time, the temperature of the crystallization system is lowered, and the second crystal growth is carried out under stirring; after the second crystal growth is completed, solid-liquid separation and drying are carried out to obtain inosine disodium phosphate crystals. Through step-by-step crystal growth and regulation, the effective control of the crystal size is realized, the process is stable, the product quality is excellent, the obtained inosine disodium phosphate crystals have controllable particle size, good fluidity and high purity.

The invention provides a light building heat insulation board and a preparation method thereof, and belongs to the technical field of building energy-saving materials. The composite phase-change material is dispersed in the polyurethane matrix, and comprises silicon dioxide aerogel, silicon dioxide aerogel, silicon dioxide sol, silicon dioxide sol, silicon dioxide sol, silicon dioxide sol and silicon dioxide sol; the disodium hydrogen phosphate dodecahydrate is loaded in the silicon dioxide aerogel. According to the invention, the light and efficient building heat insulation board is prepared by synergistically integrating the efficient heat insulation and stable packaging of the silicon dioxide aerogel, the phase change heat storage function of the disodium hydrogen phosphate dodecahydrate and the good mechanical and processing properties of the polyurethane matrix.

The invention discloses pranoprofen eye drops and a production process thereof. Comprising the following raw material components in parts by weight: 0.1 to 0.5 part of pranoprofen, 1 to 5 parts of vitamin E polyethylene glycol 1000 succinate, 2 to 6 parts of soybean phospholipid, 3 to 8 parts of polyoxyethylated castor oil EL-40, 0.1 to 0.3 part of histidine, 0.2 to 0.6 part of sodium dihydrogen phosphate, 0.3 to 0.7 part of disodium hydrogen phosphate, 2 to 5 parts of glycerol, 1 to 4 parts of polyethylene glycol 400, 0.05 to 0.2 part of sodium hyaluronate, 0.1 to 0.4 part of D-panthenol and 0.01 to 0.03 part of benzalkonium chloride. The injection comprises the following components in parts by weight: 0.05-0.15 part of potassium sorbate, 0.005-0.02 part of epsilon-polylysine, 0.01-0.05 part of edetate disodium, 0.02-0.08 part of vitamin E acetate, 0.005-0.015 part of L-cysteine and the balance of water for injection, and the total weight part of the water for injection is 100 parts. According to the invention, pranoprofen is taken as a core, and vitamin E polyethylene glycol 1000 succinate, soybean phospholipid and polyoxyethylated castor oil EL-40 are adopted for synergistic solubilization, so that the problem of poor water solubility of the medicine is solved; histidine and phosphate are compounded for buffering and are matched with multiple stabilizers, so that the stability of the preparation is improved.

The invention relates to the technical field of biological products, in particular to a preparation method of a myocardial marker composite quality control substance, which comprises the following steps: firstly, treating serum to prepare a quality control substance matrix liquid, further testing the concentration of myocardial markers in the quality control substance matrix liquid, screening out low-concentration-value human serum and high-concentration-value human serum, and determining the concentration of the myocardial markers in the quality control substance matrix liquid. Selecting a positive myocardial marker pure product to prepare a myocardial marker substance control solution without pure product addition and a myocardial marker substance control solution with pure product addition, synthesizing the corresponding myocardial marker substance control solution, adding disodium hydrogen phosphate dodecahydrate and sodium dihydrogen phosphate dihydrate, adjusting the pH value, sequentially adding corresponding elements, and uniformly mixing to obtain the myocardial marker substance. According to the myocardial marker substance control substance provided by the invention, the matrix effect in different detection methodologies can be effectively reduced; the stability of a detection result can be remarkably improved, and the preparation method has the characteristics of good stability and uniformity, high redissolution speed, low viscosity, small matrix effect and simplicity and convenience in preparation.

The invention discloses a hydration heat inhibitor for concrete and a preparation method thereof, and belongs to the technical field of concrete admixtures. The hydration heat inhibitor for concrete is prepared from the following raw materials in parts by weight: 15 to 20 parts of modified nano cellulose, 3 to 5 parts of fluorine-containing surfactant, 8 to 12 parts of sodium gluconate, 0.5 to 1 part of ammonium pentaborate, 0.3 to 1 part of 1-hydroxyethylidene-1, 1-diphosphonic acid and 10 to 15 parts of temperature control material. According to the hydration heat inhibitor disclosed by the invention, the modified nano cellulose, the fluorine-containing surfactant and the temperature control material disodium hydrogen phosphate dodecahydrate in the hydration heat inhibitor are not simply superposed, but form a multi-level and multi-mechanism synergistic system; the fluorine-containing surfactant firstly delays the start of the reaction, after the reaction is started, the modified nanocellulose goes deep into the reaction to reduce the reaction rate, and the temperature control material absorbs and stores heat through phase change and forcefully presses the temperature rise. The hydration heat inhibitor provided by the invention can reduce the hydration heat release rate and significantly reduce the heat release under the condition of not influencing the working performance of concrete.

The invention provides an odorless buffer acid, which is prepared from the following raw materials in parts by mass: 75 to 95 parts by weight of acid-base buffer pair, 14 to 15 parts by weight of anhydrous sodium sulphate, 0.1 to 0.5 part by weight of detergent and 0.1 to 0.5 part by weight of acrylic acid-maleic anhydride copolymer, the acid-base buffer pair is specifically one or more of a sodium dihydrogen phosphate and disodium hydrogen phosphate buffer pair, a benzoic acid and sodium formate buffer pair, a malic acid and sodium malate buffer pair and a citric acid and sodium citrate buffer pair. The buffer acid with specific composition and proportion designed by the invention is white powder in the appearance of a finished product, the pH value of a 1% solution is 5.8-6.8, the pH value of a dyeing and finishing process can be adjusted, the pH value of a cloth cover can also be adjusted, and the buffer acid can be used for printing and dyeing processing and after-finishing of textiles. The odorless buffer acid provided by the invention is stable in buffer effect, good in cloth cover quality, free of peculiar smell after dyeing and finishing, and good in decontamination effect.

The invention discloses an anthocyanin-quercetin copigment with high thermal stability as well as a preparation method and application of the anthocyanin-quercetin copigment and application of the anthocyanin-quercetin copigment in 3D printing and the like. The method comprises the following steps: 1, preparing a buffer solution, namely preparing a citric acid solution; preparing a disodium hydrogen phosphate solution; and the pH is calibrated to 3.00 + / -0.1 through proper mixing. 2, a preparation method of mother liquor of anthocyanin and quercetin: dissolving the anthocyanin with absolute ethyl alcohol, and adding a buffer solution after the anthocyanin is completely dissolved, so that the concentration of the anthocyanin is 0.1-10g / L; the quercetin is dissolved with absolute ethyl alcohol, a buffer solution is added after the quercetin is completely dissolved, and the concentration of the quercetin is 0.1-10 g / L; 3, preparing a co-pigment solution, namely mixing and uniformly shaking the prepared anthocyanin mother liquor and quercetin mother liquor according to the mass ratio of (1-3): (5-15); the purple ink has excellent thermal stability, can be widely applied to intelligent packaging indication labels, endows food with natural purple tone, and is especially used as an ink material for 3D printing.

The invention provides a lysis buffer for targeted removal of red blood cells, a red blood cell lysis method and application thereof, and belongs to the technical field of red blood cell lysis. The lysate consists of a plasmodium merozoite extract, soybean plant hemagglutinin and a liquid-based cell preservation solution, wherein the liquid-based cell preservation solution is an aqueous solution containing glycyrrhizic acid, disodium ethylene diamine tetraacetate, disodium hydrogen phosphate, sodium chloride, potassium chloride and monopotassium phosphate. According to the method disclosed by the invention, the plasmodium merozoite extract and the soybean plant hemagglutinin are combined to quickly degrade protein and lipid which are key components of an erythrocyte membrane and destroy the integrity of a membrane structure, so that erythrocyte rupture is finally caused, and no adverse effect is caused on visible components such as other cells while the erythrocyte is efficiently and quickly removed.

The invention provides a preparation method of a sodium phosphate compound, which comprises the following steps: A) mixing a disodium hydrogen phosphate raw material and potassium chloride to obtain mixed powder; and B) mixing the dried sodium dihydrogen phosphate raw material with the mixed powder to obtain the sodium phosphate compound. The potassium chloride is added into the sodium phosphate compound, electrolyte balance of a patient can be better maintained, the problem of mixing uniformity of the potassium chloride in the product is solved through a specific production and preparation process, and the property stability of the product under high-temperature and normal-temperature conditions is guaranteed; the problem that products are gathered and clustered according to a conventional powder preparation process is solved.

The application discloses a method for recycling waste activated carbon after water purification treatment, and belongs to the field of waste activated carbon recycling, which comprises the steps of metal ion desorption, organic matter desorption and recovery of pre-product activation. In the process of organic matter desorption, trimethylol aminomethyl methane, disodium hydrogen phosphate, sodium hydroxide, ethylene carbonate and triethanolamine are configured into an electrolyte, and the modified titanium-copper composite electric negative plate is used to regenerate the waste activated carbon, so that the regeneration efficiency of the waste activated carbon can reach 93.4%, and the adsorption activity of the recovered activated carbon is equivalent to that of the purchased activated carbon powder. The modified titanium-copper composite electric negative plate is obtained by uniformly mixing ethylene carbonate and stearic acid, adding tetraethyl orthosilicate at 100-120 DEG C, immersing the titanium-copper composite electric negative plate into the mixture, and then drying to form an alkali-resistant film.

The embodiment of the invention provides a calcium phosphate ion cluster, a composite film, a hydrogel film and a preparation method and application thereof. The preparation method of the calcium phosphate ion cluster comprises the following steps: adding an adenosine-5 '-disodium triphosphate hydrate into a calcium chloride solution, adjusting the pH value to 9-11, then adding a disodium hydrogen phosphate dodecahydrate solution, maintaining the pH value to 9-11, and keeping for 1-3 hours under a stirring condition to obtain the calcium phosphate ion cluster. In the preparation process of the thin film, an inorganic matter calcium phosphate ion cluster and an organic matter polyvinyl alcohol form an organic-inorganic interpenetrating bicontinuous network structure, so that about 7750 times of heavy objects of own types can be lifted without fracture, and excellent fracture strength and fracture toughness are shown.

The invention relates to an allergen specificity IgG4 antibody magnetic particle chemiluminescence detection kit, which comprises a reagent 1, a reagent 2, a reagent 3, a reagent 4 and a luminescent substrate solution, the first buffer solution component comprises disodium hydrogen phosphate, sodium dihydrogen phosphate, sodium chloride, glycosylated bovine serum albumin, glycerol and glycine methyl ester; the reagent 2 is a biotin-labeled allergen solution; the reagent 3 comprises an alkaline phosphatase labeled anti-human IgG4 antibody and a third buffer solution; the third buffer solution comprises MES, sodium chloride, bovine serum albumin, magnesium chloride, zinc chloride and PEG 8400; the reagent 4 comprises a biotin-labeled anti-human IgG4 antibody and a fourth buffer solution, the fourth buffer solution comprises MES, sodium chloride, bovine serum albumin and glycerin, and the kit has excellent accuracy, specificity, stability and repeatability.