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119 results about "Lead poisoning" patented technology

Gradual build-up of lead in the body over a prolonged period leading to poisoning.

Pharmaceutical formulation for sulfur-containing drugs in liquid dosage forms

The pharmaceutical formulations of the invention for masking the odor from the sulfur-containing active agent comprise at least one sulfur-containing active agent, an effective amount of at least one flavoring agent. Any flavoring agent or combinations of flavoring agents may be used in the pharmaceutical formulation of the invention. The flavoring agent may be natural flavors, natural fruit flavors, artificial flavors, and mixtures thereof. The pharmaceutical formulation may contain an artificial sweetener, a natural sweetener or mixtures thereof. The pharmaceutical formulations are provided in liquid dosage form or a dry powder dosage form for reconstitution in water. Stabilizer added as one of expicients can extend the stability of the pharmaceutical formulation liquid dosage form for a period of at least 30 days when the formulation is stored below room temperature. The pharmaceutical formulations of the invention are palatable and particularly useful for the administration of sulfur-containing drugs to very small children that are in need of such medications. Methods of forming a liquid dosage form of pharmaceutical formulation by adding water to the dry powder form, methods to prepare an odor-masking pharmaceutical formulation and methods for treating lead poisoning or Wilson's disease using the odor-masking pharmaceutical formulation are also provided.
Owner:CHILDRENS MEDICAL CENT CORP

Achievement method of cation exchange of lead halide perovskite quantum dot material

The invention provides an achievement method of cation exchange of a lead halide perovskite quantum dot material. The method includes the steps of: 1) adding Cs2CO3, octadecene and oleic acid into a reaction bottle A, and feeding argon with stirring; 2) adding PbCl2 and octadecene into a reaction bottle B and feeding argon with stirring; 3) adding MnCl2 and octadecene into a reaction bottle C and feeding argon with stirring; 4) heating the reaction bottles A, B and C, adding oleic acid and oleylamine into the reaction bottles B and C, and continuously heating the reaction bottles B and C; 5) adding the solution in the reaction bottle A to the solution in the reaction bottle B, so that after a reaction is carried out in the reaction bottle B for a preset time, a CsPbCl3 perovskite quantum dot material solution is produced; 6) adding the solution in the reaction bottle C to the solution in the reaction bottle B to carry out a cation exchange reaction in the reaction bottle B to generate Cs(Pb<1-x>Mn<x>)Cl3. The method, on the basis of not damaging the appearance of the lead halide perovskite quantum dot material, can control the ratio of lead in the lead halide perovskite quantum dot material, so that a problem of lead poisoning of the lead halide perovskite quantum dot material can be solved.
Owner:BEIJING JIAOTONG UNIV

Preparation method of Ba0.9Ca0.1Ti0.9Zr0.1O3 nano lead-free piezoelectric ceramic

The invention provides a preparation method of Ba0.9Ca0.1Ti0.9Zr0.1O3 nano lead-free piezoelectric ceramic, and the preparation method includes the following steps: adding BaCl2.2H2O and CaCl2 into water to mix into a mixed liquid, stirring the mixed liquid and standing; adding a ZrOCl2[.]8H2O solution and TiCl4 into a KOH solution to obtain Ti (OH) x and Zr (OH) y mixed gel; adding the mixed liquid prepared in the step 1) into the Ti (OH) x and Zr (OH) y mixed gel, and stirring to obtain a hydrothermal reaction precursor solution; transferring the precursor liquid into a hydrothermal kettle for reaction; after the reaction is finished, cooling the hydrothermal kettle to room temperature, taking the hydrothermal kettle out, washing a product in the hydrothermal kettle, and drying to obtain lead-free piezoelectric ceramic powder; and performing microwave sintering on a formed body to obtain the nano lead-free piezoelectric ceramic. According to the preparation method, the sol-gel modification hydrothermal method is used for preparation of the ceramic powder, at the same time a microwave sintering technology is used for sintering to obtain the nano lead-free piezoelectric ceramic with the grain size below 100nm, and the nano lead-free piezoelectric ceramic contains no lead and avoids the harm of lead poisoning on human body and environment.
Owner:江苏向宽设计有限公司

Medicine for treating occupational chronic lead poisoning caused by spleen-stomach disharmony and preparation method

The invention discloses a medicine for treating occupational chronic lead poisoning caused by spleen-stomach disharmony and a preparation method. The medicine comprises the following medicinal materials: valeriana jatamansi, uraria crinita, mentha spicata, camphorwood seed, eupatorium japonicum, gnaphalium tranzschelii, bushy dasiphora flower, diuranthera major, dracontomelon duperreanum, desmodium triquetrum, dendrobe, arisaema intermedium blume, helwingia root, podophyllum hexandrum, polygonum chinense, adiantum capillus-veneris, lithospermum, garden balsam stem, fructus polygoni orientalis, kamuning, herba pyrolae, peperomia blanda, ternate buttercup root, marsdenia tinctoria, acmella ciliate, indian lettuce, creeping violet herb, centella, nude pronephrium rhizome, ovateleaf holly bark and liquorice. According to the medicine disclosed by the invention, the traditional Chinese medicinal materials with different medicine properties are scientifically combined to achieve the effects of detoxifying, regulating vital energy, regulating the middle warmer, calming the adverse-rising energy, accelerating poison discharge and treating both symptoms and root causes; the medicine is safe, effective, relatively few in adverse effects and relatively short in treatment course; the preparation technology of the medicine is simple, convenient and low in cost; and the occupational chronic lead poisoning is not easy to recur after being cured.
Owner:周镔

Submerged slag conveyer

The invention discloses a submerged slag conveyer. The submerged slag conveyer comprises a main cylinder, wherein the main cylinder is fixed on a platform; multiple guide sleeves are arranged on the platform, multiple roller support seats are arranged on the bottom part of the platform, rollers are installed on the roller support seats and are movably connected with two guide rails; rodless cylinders are connected at one side of the platform and are fixed on the two ends of the guide rails; the piston rod of the main cylinder is hinged with a bracket, and the bracket is provided with two plates; lifting cylinders are respectively fixed on the two plates, piston rods of the lifting cylinders are coaxially hinged with two connection rods, each connection rod is hinged with a hinging arm of a filter claw through a pin shaft of the connection rod, and the pin shaft is movably connected with the two support plates of the bracket; multiple guide columns are fixedly installed on the two plates of the bracket, and the guide columns are movably connected with the guide sleeves arranged on the platform. The submerged slag conveyer provided by the invention overcomes the following shortcomings in prior art, namely, the labor strength is large, the work efficiency is low, the quality of the products cannot be ensured, the safety is low, and lead poisoning phenomenon is easy to produce while workers work in a high-temperature environment, so that the submerged slag conveyer is suitably used with lead alloy casting units or similar equipment.
Owner:HUNAN JIANG YE MECHANICAL & ELECTRICAL TECH CO LTD

Rosa roxburghii tratt beverage and preparation method thereof

The invention discloses a rosa roxburghii tratt beverage and a preparation method thereof, wherein the rosa roxburghii tratt beverage comprises a rosa roxburghii tratt juice, sulfur dioxide, citric acid, white granulated sugar, and water. The preparation method comprises: selecting fresh rosa roxburghii tratt fruit with a maturity of 80-90%, washing, placing into a breaker, breaking, pressurizing, and collecting a fruit juice; sealing the fruit juice into a pool, and standing for 7 days; adding gelatin and treating; filtering to obtain a rosa roxburghii tratt juice; and mixing the rosa roxburghii tratt juice, sulfur dioxide, citric acid, white granulated sugar and water according to a certain ratio, uniformly stirring, disinfecting, and packaging to obtain the rosa roxburghii tratt beverage. According to the present invention, the product has characteristics of clear and transparent color, sweet and sour taste and rich nutrition, and contains a large amount of carbohydrates, vitamins and trace elements necessary for the human body; the method has advantages of simple process and convenient large-scale production; and the experiment results show that the rosa roxburghii tratt provides protection effects for aminophenazone and nitrite-induced liver poisoning and liver cancers, provides prevention and treatment effects for lead poisoning, can be adopted as the auxiliary agent for prevention and treatment of lead poisoning, and has characteristics of good lead expelling better and no toxic-side effect.
Owner:龙里天乙刺梨有限公司

Method for preparing lead-removing rice flour for babies and infants

The invention discloses a method for preparing lead-removing rice flour for babies and infants. According to the method, rice, millet, tomatoes, apples and haws serve as main raw materials, a scientific formula for millet, tomato, apple and haw pulp is designed according to the lead removing function of the millet, the tomatoes, the apples, the haws and the like, and nutrients such as multivitamins and composite mineral substances are added, and thus, the millet-pulp lead-removing rice flour for the babies and infants is prepared by adopting the processes of carrying out two-stage wet-process grinding, carrying out pasting, carrying out roller drying, carrying out mixing and carrying out packaging. According to the lead-removing rice flour for the babies and infants, prepared by the method, on the basis of preserving nutrients contained in the traditional rice flour for the babies and infants, fruit pulp raw materials with lead removing functions such as the millet, the tomatoes, the apples and the haws are added, and the lead-removing rice flour for the babies and infants is prepared by a scientific lead-removing proportioning ratio; through being eaten by the babies and infants of 6-24 months old, the lead-removing rice flour can help the babies and infants to remove lead so as to prevent chronic lead poisoning, thus, the lead-removing rice flour is a kind of new-generation lead-removing nutritional supplementary food.
Owner:JIANGXI MEIBIJIA ECOLOGICAL TECH IND CO LTD

Chinese medicinal herb preparation for lead removing treatment and preparation method thereof

InactiveCN102335256AMaximum retentionGuarantee the effect of lead removal treatmentAntinoxious agentsPlant ingredientsPolyamidePlum extract
The invention discloses a Chinese medicinal herb preparation for a lead removing treatment and a preparation method thereof. The Chinese medicinal herb preparation contains the following medicinal materials as raw materials: 180-220 g of mung bean, 144-176 g of semen euryales and 36-44 g of dark plum. The preparation method comprises the following steps of: 1) taking the mung bean and grinding the mung bean to fine powder; soaking the powder with water and stirring the solution; filtering the solution to obtain mung bean dregs; filtering filtrate; and freezing and drying filter residue, to obtain mung bean protein powder; 2) adding water into the mung bean dregs; decocting, filtering and concentrating the solution to obtain concentrated liquid; taking an upper polyamide chromatographic column of the concentrated liquid; eluting mung bean flavone, and filtering to obtain a mung bean flavone solution; 3) taking the semen euryales and the dark plum; adding water into the semen euryales and the dark plum, respectively; decocting and filtering the solutions; concentrating the filtrates to obtain semen euryales extract and dark plum extract, respectively; 4) mixing the mung bean flavone solution with the semen euryales extract and the dark plum extract; adding dextrin, and spraying and drying the mixture, to prepare extract powder for future use; and 5) mixing the mung bean protein powder with the sprayed and dried extract powder, to further prepare granules. The preparation provided by the invention has the effects of removing lead or prompting the lead to be removed, and the actions of treating and releasing lead poisoning symptom.
Owner:浙江省中药研究所有限公司
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