Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Hiro

11 results about "Thin layer" patented technology

Thin-layer chromatography (TLC) is a chromatography technique used to separate non-volatile mixtures. Thin-layer chromatography is performed on a sheet of glass, plastic, or aluminium foil, which is coated with a thin layer of adsorbent material, usually silica gel, aluminium oxide (alumina), or cellulose.

Method for detecting biogenic amine in yellow wine by using chromatographic sheet

InactiveCN103983733AImprove linearityShorten detection timeComponent separationSolventThin layer chromatogram
The invention discloses a method for detecting biogenic amine in yellow wine by using a chromatographic sheet, belonging to the technical field of analysis and detection of components in the yellow wine. The method comprises the steps of carrying out derivation on a biogenic amine standard substance and a to-be-tested yellow wine sample by using a derivatization reagent, enriching the biogenic amine by using liquid-liquid extraction, carrying out sample application on a sheet plate, arranging the sheet plate in a saturate tank loaded with a certain proportion of developing solvent and unfolding; developing and observing under an ultraviolet lamp, and qualitatively detecting the target biogenic amine; and finally, quantitatively measuring the biogenic amine in the yellow wine by using a thin layer chromatograph. According to the method, the detection limit range of the biogenic amine is 0.5-5 mug / mL, the average adding standard recovery rate is 88.5-110.3 percent, the standard deviation is 3.8-12.5 percent, and at most 13 samples can be simultaneously detected on a 20*20 thin layer glass plate. Compared with other analysis methods, the method has the advantages that qualitative and quantitative analysis of the biogenic amine in the yellow wine can be realized, the operation is simple and convenient, the cost is low, and a plurality of samples can be simultaneously detected.
Owner:JIANGNAN UNIV

Test card capable of avoiding influence of wet gas on accuracy in test process and application of test card

InactiveCN107782894AAvoid influenceQuantitative test bias reductionBiological testingHigh humidityThin layer
The invention provides a test card capable of avoiding the influence of wet gas on the accuracy in a test process and application of the test card. The test card comprises a test strip and a card box,wherein the card box is provided with a detection window; a dampproof thin layer for isolating environmental wet gas covers the detection window; the dampproof thin layer is a lightproof material orlight-transmitting material thin layer. The application is that the test card is applied to immunochromatography, and particularly to detection of a nitrotyrosine indicator. The test card can avoid the influence of environmental humidity in the detection process, so that the stability and the consistency of a test card detection result are improved; meanwhile, the application range of the test card to the environment is enlarged, so that the test card is particularly suitable for measurement under a high-humidity environment; when the test card is applied to detection of nitrotyrosine, quick and quantitative detection of the nitrotyrosine can be realized; moreover, a requirement on assorted equipment is low, and the detection process can be greatly simplified; the test card has the characteristics of wide linear range, high accuracy, high repetitiveness and the like.
Owner:BEIJING YICHENG BIOELECTRONICS TECHNOLOGY COMPANY

Zn1-xMgxO group heterojunction and preparation method thereof

InactiveCN103066171AVacuum evaporation coatingSputtering coatingCompression moldingHeterojunction
The invention relates to a Zn1-xMgxO group heterojunction and a preparation method of the Zn1-xMgxO group heterojunction. The heterojunction is composed of an n-Zn1-xMgxO thin layer and a p-Ni1-yMgyO thin layer which are positioned on a substrate. The preparation method includes the following steps: (1) mixing ZnO and MgO with Al2O3 powder or Ga2Ob powder, compression molding and sintering the mixture, and obtaining Zn1-xMgxO ceramic target material mixed with Al or Ga, (2) mixing NiO, MgO and Li2CO3 powder, compression molding and sintering the mixture, and obtaining Li1-xMgxO ceramic target material mixed with Li, (3) putting the substrate in a pulsed laser deposition device, adjusting the distance between the target materials and the substrate, depositing the n-Zn1-xMgxO thin layer on the substrate using the Ni1-xMgxO ceramic target as sputtering target material under proper substrate temperature, oxygen pressure and laser frequency, (4) depositing the p-Ni1-yMgyO thin layer on the n-Zn1-xMgxO thin layer using the Ni1-xMgxO ceramic target mixed with Li as sputtering target material, and obtaining the Zn1-xMgxO group heterojunction. The Zn1-xMgxO group heterojunction preparation method has the advantages that preparation method is simple, cost is low, producing conditions are easy to control, compatibility of interface lattices is good, and performance of components is improved. Further, the Zn1-xMgxO group heterojunction has a wide application prospect in short wave optoelectronic devices and transparent electronics field.
Owner:TAIYUAN UNIV OF TECH

Wadding machine and processing method for cotton slice

InactiveCN101279706AImprove cohesionSeamlessBed-coversUpholstery fillingWaddingThin layer
The invention provides a cotton-wadding machine and a method for processing cotton slice in the field of daily necessities. The structure of the cotton-wadding machine is that: two cotton-wadding machines are arranged on the same surface in opposite vertex or bevel. Guide rolls of the cotton-wadding machines are arranged on the cotton-wadding machines through guide roll brackets and are connected with the power of the hosts of the cotton-wadding machines. Underground rooms and ascending ladders are arranged at the lower parts of the cotton-wadding machines. Winding rollers of the cotton slice of the bedding are arranged in the underground room through brackets of the winding roller of the cotton slice of the bedding; the winding roller is dynamically connected with one end guide roll through the power transmission belt of the winding roll and the guide roll. The processing method of the cotton slice of the bedding comprises the steps: the cotton wool is filled manually through the cotton-wadding machine; the filling is little at a seaming part so as to form a thin layer; the cotton wool layer is overlapped marginally when passing through the winding rollers of the cotton-wadding machine and forms broad-width bedding cotton slice. The method can utilize the cotton-wadding machine to realize split joint of the cotton wool and produce the broad-width double bedding cotton slice. The method has the advantages of high production efficiency, good joint and no gaps. The method is applicable to the production of bedding articles in the field of daily necessities.
Owner:任文生

Negative plate of multi-element nano vanadium power battery

The invention discloses a negative plate of a multi-element nano vanadium power battery and a preparation method for the negative plate of the multi-element nano vanadium power battery. The plate comprises a negative current collector of which the upper and lower surfaces are sequentially provided with a middle thin layer and an active outer layer from inside to outside respectively. In the negative plate of the multi-element nano vanadium power battery and the preparation method for the negative plate of the multi-element nano vanadium power battery, the upper and lower rough surfaces of the negative current collector are sequentially provided with the middle thin layer and the active outer layer from inside to outside respectively, and the middle thin layer is 1 to 5 microns thick and comprises components which are substantially the same as those of the active outer layer, so that adhesive forces between the middle thin layer and the negative current collector and between the middle thin layer and the active outer layer are strong, the powder dropping phenomenon of the negative plate of the multi-element nano vanadium power battery is effectively prevented, and the service life of the negative plate of the multi-element nano vanadium power battery is prolonged.
Owner:中星动力新能源产业投资淮安有限公司 +1

Artificial fracture imaging method and system for physical simulation gas fracturing experiment

The invention provides an artificial fracture imaging method and system for a physical simulation gas fracturing experiment and belongs to the field of petroleum and natural gas exploration and development. The artificial fracture imaging method for the physical simulation gas fracturing experiment comprises the steps that 1, a rope saw is used to cut off a rock sample, obtained after the gas fracturing experiment, along a section of the rock sample; 2, a writing thin layer with ductility is tightly combined with the section of the rock sample; and 3, the surface, where a coloring block is attached, is used to uniformly color the writing thin layer. Through the artificial fracture imaging method and system, the problems that the rock sample obtained after the gas fracturing experiment cannot be directly transplanted, and dyeing of a rock sample fracture is performed by adding a coloring material in the prior art are solved, and a new artificial fracture imaging method is proposed; and through the method, no aqueous medium is added, a rock block and a fracture surface maintain a waterless dry state all the time, and experiment result disturbance caused by an aqueous medium is avoided.
Owner:CHINA NAT PETROLEUM CORP +1
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products