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15261 results about "Fluid phase" patented technology

The Fluid Phase. Cell membranes are composed of many different types of lipids, including saturated and unsaturated phospholipids, cholesterol, and fatty acids. Membranes in functional condition are predominantly comprised of fluid phase lipid bilayers. Maintenance of membrane fluidity is crucial for integrity and functionality.

Monodisperse noble metal nanocrystals

Nanoparticle compositions of noble metals, and methods of making them, are described. The nanoparticle compositions are made by reacting a salt or complex of a noble metal, such as Au, Ag, Cu or Pt, with a weak ligand, and a reducing agent, in a single liquid phase. The noble metal is typically provided as a halide or carboxylate. The ligand is preferably a fatty acid or aliphatic amine. The reducing agent is preferably a borohydride reagent, hydrazine, or a mixture thereof. Nanocrystals in the size range of 1 nm to 20 nm are produced, and can be made in substantially monodisperse form.
Owner:THE BOARD OF TRUSTEES OF THE UNIV OF ARKANSAS

Method for detecting residual quantity of pesticides in vegetable sample by utilizing liquid chromatogram-high resolution mass spectrometer

The invention relates to a method for detecting the residual quantity of pesticides in a vegetable sample by utilizing a liquid chromatogram-high resolution mass spectrometer, which belongs to the technical field of a food safety detecting. The method provided by the invention comprises the following steps: 1) extracting the residual acetonitrile in the sample; 2) carrying out the dispersion solid-phase extraction and purification on a sample extraction solution; 3) detecting by utilizing the liquid chromatogram-high resolution mass spectrometer; and 4) analyzing the result. In the method provided by the invention, the quality accuracy of 27 pesticides is less than 1ppm; the detection limit is 0.01-0.05mg / kg; the addition recovery rate is 80-100%; and the relative standard deviation is less than 15%.
Owner:CHINA NAT RICE RES INST

Gas-phase process

InactiveUS20050182207A1CycloalkaneBoiling point
A continuous gas fluidized bed polymerization process for the production of a polymer from a monomer including continuously passing a gaseous stream comprising the monomer through a fluidized bed reactor in the presence of a catalyst under reactive conditions; withdrawing a polymeric product and a stream comprising unreacted monomer gases; cooling said stream comprising unreacted monomer gases to form a mixture comprising a gas phase and a liquid phase and reintroducing said mixture into said reactor with sufficient additional monomer to replace that monomer polymerized and withdrawn as the product, wherein said liquid phase is vaporized, and wherein the stream comprises at least two inert condensing agents selected from the group consisting of alkanes, cycloalkanes, and mixtures thereof, each of the inert condensing agents having a normal boiling point less than 40° C.
Owner:UNIVATION TECH LLC

Positive pole material for lithium ion battery and preparation method of positive pole material

ActiveCN103247797AReduce the content of free lithium compoundsLower pHCell electrodesIonizationLithium compound
The invention relates to a surface modifying method of a lamellar lithium-nickel series compound oxide positive pole material, a chemical formula of which is LiNixM1-xO2, wherein M is one or more of Co, Mn and Al, and x is not less than 0.2 or less than 1. Through selecting boric acid or phosphoric acid which is capable of reacting with an ionization lithium compound on the surface of the positive pole material to generate a lithium salt which does not dissolve in water or slightly dissolve in water, or silicate ester or titanate which is capable of being hydrolyzed to obtain silicic acid or titanic acid, and a liquid phase system reacts and then is directly dried to obtain the lamellar lithium-nickel series compound oxide positive pole material, with the surface being wrapped by the lithium salt. According to the surface modifying method, the content of the ionization lithium compound on the surface of the lamellar lithium-nickel series compound oxide positive pole material is effectively reduced, a uniform lithium salt wrapping layer is formed on the surface of the lamellar lithium-nickel series compound oxide positive pole material, and thus the processing property and the storage stability of the positive pole material are improved, and the circulatory stability and high-temperature storage performance of a lithium ion battery are improved.
Owner:BTR NEW MATERIAL GRP CO LTD
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