12 results about "Iodine molecule" patented technology

Provided in the present invention are a preparation method for a crown ether covalent organic framework material, and the use thereof in iodine adsorption. In the present invention, an 18-crown-6-ether group is introduced into the structure of a covalent organic framework (COF) material for iodine adsorption work. The covalent organic framework material can form a one-dimensional pore channel structure in order, and the 18-crown-6-ether can be selectively complexed with iodine molecules, thereby achieving the purpose of efficient iodine adsorption. The material can perform specific iodine adsorption from high-temperature iodine steam, and the iodine steam adsorption capacity of the COF material is as high as 5.56 g / g. The COF material has a high adsorption capacity, is easy to prepare and simple to operate, has a high adsorption efficiency, and is particularly suitable for adsorbing and separating radioactive iodine in the nuclear industry.

The application discloses an aerosol correction method and system suitable for a hyperspectral resolution laser radar, and relates to the technical field of laser radar detection. Specifically, the method comprises the following steps: a first auxiliary detection channel and a second auxiliary detection channel specially added and containing iodine molecular absorption cells are used to filter out aerosol Mie scattering components in specific frequency laser echoes; pure first atmospheric temperature data is obtained based on data inversion of the auxiliary detection channels; atmospheric aerosol backscattering ratios are calculated in combination with reference channel data; the backscattering ratios are used to correct wind speed and temperature inversion models of the laser radar, and then corrected atmospheric wind speed and temperature data are obtained. The application aims to expand the minimum detection height of a hyperspectral resolution Rayleigh temperature and wind measurement laser radar by accurately quantifying and eliminating aerosol interference, and to realize high-precision synchronous measurement of wind speed and temperature in low-altitude and aerosol-rich areas.

The invention discloses a method for rapidly detecting the content of active oxygen in washing salt, and belongs to the technical field of analytical chemistry. According to the detection method provided by the invention, the defoaming dispersant is added, so that physical defoaming can be realized, the polarity of the solution can be reduced, the wrapping effect of surfactant micelles in the sample to be detected on iodine molecules or triiodide ions is reduced, and the color mutation at the titration end point is acute; meanwhile, the metal ion masking agent is complexed with interference metal ions, so that the catalyst is ensured to catalyze the oxidation-reduction reaction of peroxide and iodide ions, and the balance of'fast 'and'standard' is realized; in addition, the detection method disclosed by the invention is remarkably shortened in time, and has the advantages of good detection accuracy and high efficiency; moreover, the detection method is not only suitable for a pure sodium percarbonate raw material, but also suitable for a finished product washing salt containing a high-concentration surfactant and an enzyme preparation; therefore, the method is suitable for industrial large-scale detection application.

The invention discloses a polaroid and a preparation method thereof, a display panel and a display device, and relates to the technical field of display, and the preparation method of the polaroid comprises the following steps: providing a substrate; and preparing the polarization layer on one surface of the substrate by adopting a silane coupling agent, iodine molecules and / or dye molecules. According to the technical scheme, the overall light transmittance of the display panel can be improved, and the power consumption of the display device can be reduced.

The application discloses a method for detecting the acidity of a circulating solution of electro-deposited cobalt, which comprises the following steps: removing oxidizing substances in the circulating solution of electro-deposited cobalt by potassium iodide in an acidic medium; reacting the potassium iodide with potassium iodate and acid to generate iodine molecules; titrating with a sodium thiosulfate standard solution until the solution changes from blue or blue-black to the original color of the solution, which is the end point; and calculating the acidity content according to the mass balance. The method can effectively remove the oxidizing substances in the solution to be measured, avoid the interference with the determination of the acidity content, and make the detection result more accurate. The sodium thiosulfate is innovatively applied to the detection of the acidity of the circulating solution of electro-deposited cobalt, and the sodium thiosulfate titration is used to replace the commonly used sodium hydroxide titration method, so that the interference of the original color of the light red solution with the color judgment of the end point of the sodium hydroxide (phenolphthalein as an indicator) is avoided.

This invention belongs to the field of nuclear reactor target safety design, specifically relating to a method and system for calculating the internal pressure of a target based on the amount of tellurium compound. The method first determines the required core data; based on the mass and density of the tellurium compound, the effective volume of iodine vapor inside the target is calculated, where the effective volume is the internal volume of the target minus the volume occupied by the tellurium compound; based on the mass of the tellurium compound, the tellurium element mass fraction, and the number of iodine molecules generated per unit mass of tellurium element, the total amount of iodine vapor is calculated; based on the ideal gas law, the internal pressure of the target is calculated using the total amount of vapor, the gas constant, the operating temperature, and the effective volume. This invention establishes a dynamic correlation between the amount of tellurium compound and the effective volume, clarifies the mass conversion relationship between Te and the tellurium compound, and constructs a high-precision I-131 target internal pressure calculation model, possessing significant engineering application value and theoretical innovation significance.

This utility model belongs to the field of trace moisture determination technology, specifically relating to an automatic draining trace moisture analyzer, including an electrolytic cell and a main unit. The electrolytic cell includes an anode chamber and a cathode chamber, with a ceramic filter plate between the anode and cathode chambers to prevent the diffusion of iodine molecules. The anode chamber includes a sample inlet tube, a measuring electrode, a drain outlet, and a stir bar for stirring reagents. The cathode chamber includes a liquid inlet, an electrolytic electrode, and a drying tube for holding color-changing silica gel. The main unit includes a computer control system, a keyboard, a display screen, electrolytic electrode sockets, measuring electrode sockets, and an automatic liquid addition and drainage assembly. The computer control system is used to monitor the electrolysis state of the electrolytic cell in real time, calculate the moisture content, and control the automatic liquid addition and drainage assembly to discharge waste liquid from the electrolytic cell through the drain outlet. The display screen is used to display the electrolysis curve and moisture content in real time. It can simplify the liquid addition and drainage operation, improve detection efficiency, significantly improve measurement accuracy, and provide stable and reliable measurement.

The invention provides a preparation method of a polarizing film and the polarizing film and a polaroid obtained by the preparation method. The preparation method comprises the following steps: swelling, dyeing, cross-linking and extending a PVA base film, wherein a solution used in at least one step of swelling, dyeing, cross-linking or extending contains organic aromatic boric acid. In the preparation process of the polarizing film, the organic aromatic boric acid is introduced, so that the polyene reaction of the polarizing film can be inhibited, the stability of the polarizing film is improved, meanwhile, the stability of iodine molecules in the polarizing film can be improved through the introduction of aromatic groups in the organic aromatic boric acid, and the water blocking capacity and the ultraviolet blocking capacity of the polarizing film can also be improved.

Provided are a method for preparing a polarizing film, and a polarizing film and a polarizer obtained therefrom. The preparation method includes: subjecting a polyvinyl alcohol (PVA)-based film to swelling, dyeing, crosslinking, and stretching, where a solution used in at least one of the steps of swelling, dyeing, crosslinking or stretching includes an organic aromatic boric acid. In the process of preparing the polarizing film, the introduction of the organic aromatic boric acid can inhibit the polyene reaction of the optical film, thereby enhancing the stability of the polarizing film. Meanwhile, the incorporation of the aromatic group from the organic aromatic boric acid can improve the stability of iodine molecules within the polarizing film, and increase the water resistance and the ultraviolet blocking capability of the polarizing film.

The invention belongs to the technical field of materials, and particularly relates to a triazinyl covalent organic framework material for iodide ion sensing and iodine molecule adsorption and application of the triazinyl covalent organic framework material. The triazinyl covalent organic framework material has an AA type stacked structure, is a spherical particle aggregate formed by aggregating sphere-like particles, has fluorescence characteristics, is specifically combined with iodide ions, remarkably reduces the fluorescence intensity of the iodide ions, is used for identifying the iodide ions and can also specifically adsorb iodine molecules, and the triazinyl covalent organic framework material is simple and convenient in preparation method, mild in reaction condition and suitable for industrial production. The operation is easy. And a novel method is provided for identification of iodide ions and capture or storage of iodine molecules.

The application provides a near-ultraviolet-band laser frequency stabilization system, method, device and medium. The system comprises a first device and a second device. The first device comprises a first frequency conversion module and an iodine molecule modulation transfer spectrum module. The first device is configured to perform frequency conversion on received laser light through the first frequency conversion module, send the first laser light after frequency conversion to the iodine molecule modulation transfer spectrum module, and perform frequency locking on the first laser light through the iodine molecule modulation transfer spectrum module. The second device comprises a second frequency conversion module. The second device is connected with the first device and is configured to emit second laser light, lock the second laser light on the first laser light with a preset frequency difference, perform frequency locking on the second laser light, perform frequency conversion on the second laser light after frequency locking through the second frequency conversion module, and output the laser light after frequency conversion to obtain stabilized near-ultraviolet-band laser light.

The invention relates to a cydiodine lozenge which comprises the following components: iodine, potassium iodide, menthol, beta-cyclodextrin, cane sugar, hydroxypropyl methylcellulose, magnesium stearate, hydrogenated lecithin and cholesterol. The invention further relates to a preparation method of the cydiodine lozenge. The preparation method comprises the steps of iodine-containing liposome inclusion, menthol inclusion, granulation, total mixing and tabletting. According to the invention, potassium iodide and iodine are mixed to form triiodide ions which are more stable than I2, better in water solubility and lower in volatility; beta-cyclodextrin can embed I2 and physically isolate iodine molecules to inhibit volatilization; hydrogenated lecithin and cholesterol cooperate to form a hydrogenated lecithin bimolecular layer to wrap iodine molecules, so that the volatility is effectively reduced, and the stability is improved.