31 results about "IODATE ION" patented technology

The invention provides an encapsulated [VW12]4-cluster metal organic nanotube micropore crystalline state material, and a preparation method and an application thereof and relates to a multi-acidic group micropore crystalline state material, and a preparation method and the application thereof. The invention aims to solve the problems that the synthesis difficulty of the present multi-acidic group metal-organic frame crystalline state material is high and the effect of detecting iodate according to an electrochemical method is poor. The chemical formula of the encapsulated [VW12]4-cluster metal organic nanotube micropore crystalline state material is [Co2(bimb)2VW12O40].[bimb].5H2O. The method comprises the following steps: 1) preparing a reaction solution; 2) causing the reaction solution react for 3 days in a polytetrafluoroethylene reaction kettle, and then cooling to room temperature. An encapsulated [VW12]4-cluster metal organic nanotube micropore crystalline state material modified carbon paste electrode is taken as an electrocatalyst for reducing potassium iodate and is used for efficiently detecting iodate ions. According to the method provided by the invention, the encapsulated [VW12]4-cluster metal organic nanotube micropore crystalline state material can be acquired.

The invention discloses a rapid quantitative detection method for determining iodine content in well salt. The method comprises the following steps: (1), an appropriate amount of iodized salt is weighted, placed in a bottle and dissolved in water; (2), an appropriate amount of phosphoric acid is added in the bottle first to provide an acidic condition, then an appropriate amount of sodium hypochlorite solution is added and mixed evenly to oxidize iodine ions into iodate ions, and then an appropriate amount of oxalic acid solution is added to remove the residual sodium hypochlorite after the reaction with iodide irons; (3), an appropriate amount of potassium iodide solution is added in the bottle to allow full reaction between potassium iodide and iodate ions; (4), the solution in the bottle is titrated with sodium thiosulfate solution until the color of the solution in the bottle turns to be faint yellow; (5), starch indicator solution is added in to the bottle and shook evenly and then the solution in the bottle is titrated with the sodium thiosulfate solution until the color of the solution in the bottle disappear; and (6), the iodine content of the iodized salt is worked out according to the consumption amount of the sodium thiosulfate solution. Therefore, the method provided by the invention can be used to quickly and accurately determine the total iodine content in the well and rock salt.

The present invention discloses iodine replenisher with control released iodine and its preparation process and use. The iodine replenisher is hydrotalcite containing interchangeable iodate radical or iodine ion with iodine content of 0.5-5%. The preparation process includes inserting iodate radical or iodine ion into layers of hydrotalcite; or calcining hydrotalcite at 450-550 deg.c to obtain bimetal oxide and carrying iodate radical or iodine ion to the layered structure of the bimetal oxide. Supporting iodine onto hydrotalcite, which possesses excellent biocompatibility, excellent gastrointestinal mucous membrane affinity, high interlayer interchangeability, high surface activity and great specific surface area, can obtain controlled releasing of iodine and raise utilization of iodine. The control released iodine preparation has low toxicity and high efficiency and may be used as iodine replenisher for human body and animal.

The invention relates to a use system for instrumental analysis, in particular to an ion chromatography-valve switching analysis system for simultaneously detecting iodide ions and iodate ions. The ion chromatography-valve switching analysis system is provided with an anion exchange chromatographic column comprising a chromatographic column with low exchange capacity and a chromatographic column with high exchange capacity, wherein the chromatographic column with the low exchange capacity retains the iodide ions to a certain degree while hardly retaining some weak retention ions including the iodate ions, and the chromatographic column with the high exchange capacity is capable of effectively separating various weak retention ions. The iodide ions can be rapidly eluted only through the chromatographic column with the low exchange capacity, by means of simple valve switching, the weak retention ions including the iodate ions and the like can be effectively separated, analysis time is shortened, and analysis efficiency is improved.

The invention relates to a method for effectively removing iodinated X-ray contrast agent in water, which can control the generation of trace strongly carcinogenic disinfection by-product iodinated trihalomethane. The method takes ozone as oxidant, controls the pH of the reaction solution to be equal to or less than 9 and equal to or more than 5, the solution is subjected to stirring and mixing evenly, so as to reduce the concentration of ICM in water, and control the concentration of I-THMs in water. The method of the invention eliminates the ICM existing in the water body, does not need complicated operation process, has certain difference for the degradation efficiency of the ICM under different pH conditions, but can avoid the generation of I-THMs. The main products of the reaction areiodate ions and so on. The invention is a safe and stable drinking water treatment method.

The invention discloses a holmium metal iodate fluorescent material and a preparation method and applications thereof. The molecular formula of the compound is Ho(IO3)3, the space group is P21n, the parameters of unit cells comprise that a is equal to 8.7376 angstrom, b is equal to 5.9706 angstrom, c is equal to 15.0677 angstrom, alpha is equal to 90.000, beta is equal to 97.240, g is equal to 90.000, and Z is equal to 2; and the volume V of the unit cells is equal to 779.8(10) angstrom<3>. The material adopts hydrothermal reaction to obtain crystals; Ho<3+> fluorescence radiation intensity of the material can be enhanced through iodate ions; and the material is used for producing fluorescence radiation devices.

The present invention relates to a process for the preparation of stable iodate-exchanged hydrotalcite with zero effluent discharge. The iodate-exchanged hydrotalcite produced is useful as iodizing agent. The invention further relates to utilization of alkaline effluent generated in the process of ion exchange of iodate into SHT so as to fully recycle the residual iodate anion and also utilize the alkali generated in the process for production of additional quantities of iodate through reaction with iodine crystals followed by electrochemical oxidation to obtain pure aqueous solution of iodate salt which can be reused for preparation of the stable iodizing agent. The process gives zero effluent discharge hence economical.

The invention discloses a modified electrode for detecting iodate and a preparation method. The preparation method comprises the following steps of using a piece of metallographic sand paper to polish a glassy carbon electrode, cleaning respectively with acetone, ethanol, a NaOH solution, an HNO3 solution and secondary distilled water, and drying; scanning the glassy carbon electrode in 0.5mol/L H2SO4 between the voltage of 0.2V below 0.2V and 1.2V to stably drying with a scanning speed of 50mV.S<-1>; and heating a multi-wall carbon nano-tube to 120 DEG C with concentrated nitric acid, refluxing for 14h, pumping, filtering, washing to be in a neutral state, arranging the glassy carbon electrode in a suspension to obtain a repeated voltammetric signal, and washing with the secondary distilled water to make a load phospho-molybdic acid modified electrode of the multi-wall carbon nano-tube. The load phospho-molybdic acid modified electrode is arranged into iodate ion solutions with different concentrations, an acetate-sodium acetate buffer solution is added, and the concentration of iodate ions is calculated. The invention has the advantages of simpleness, rapidness and good stability of the electrode. Analysis and detection of the iodate by using the modified electrode have the advantages of rapid analysis speed, wide detection range and good repeatability.

The invention relates to a vehicle-mounted power battery, which relates to the technical field of new energy, and is used for solving the technical problems of low efficiency, non safety and non environmental protection in the prior art and solving the problem of inconvenient charging of a new energy power vehicle. According to the vehicle-mounted power battery, hydroiodic acid and iodic acid areadopted as raw materials of the vehicle-mounted power battery; when the vehicle is started, a reduction reaction is generated in a positive electrode chamber, iodate ions obtain electrons to form elemental iodine, an oxidation reaction occurs in a negative electrode chamber, and iodine ions lose electrons to generate elemental iodine; when the electric quantity of the power battery is reduced to acertain value, the hydroiodic acid and the iodic acid are replaced; liquids discharged from different discharge holes are subjected to redox treatment so as to meet the re-replacement requirements; and the liquids are infinitely recycled, so that the problems that a traditional vehicle-mounted battery is difficult to charge and slow in charging are solved, and the problem on the battery life is also solved.

The invention belongs to the field of feed additive detection, and particularly relates to a method for measuring iodine content in multi-mineral calcium iodate, which comprises the following steps: 1) pretreatment of a sample: dissolving the sample with an acid solution, adding a sulfide reducing agent to reduce iodate ions into iodide ions, and fixing the volume to obtain a sample solution; and 2) measuring the absorbance value of the sample solution, comparing the absorbance value with a standard curve of iodate ions, and calculating and obtaining the iodine content of the sample. A drawing method of the standard curve of the iodate ions comprises the following steps: dissolving a calcium iodate standard sample with acid, adding a sulfide reducing agent to reduce the iodate ions into iodide ions, and fixing the volume; and adding a potassium carbonate solution, distilled water and a potassium thiocyanate-sodium nitrite solution, uniformly performing mixing, adding an ammonium ferric sulfate-nitric acid solution, uniformly performing mixing, keeping the constant temperature, adding a color fixing agent, performing mixing, and measuring absorbance values to obtain a standard curve of iodate ions. The measurement method is higher in accuracy.

The invention discloses a preparation method of cerium oxide modified porous silicon-based microspheres. A cerium salt aqueous solution is supported on porous silicon-based microspheres by using a vacuum rotary evaporation technology. According to the preparation method provided by the invention, a vacuum rotary evaporation technology is adopted, the reaction condition in a whole experimental process is mild, high-temperature calcination is not needed, the energy consumption is reduced, the experimental cost is saved, the preparation process is simple, the operation is easy, and the use of binders and other additives is avoided. Experiments show that the efficiency of preparing CeO2.nH2O@SiO2 porous microspheres by the method provided by the invention is high, the sphericity of the productis high, the particle size distribution is uniform, the specific surface area is up to 70m<2>/g, and the microspheres can be directly packed into a column for a column separation experiment. A resultshows that CeO2.nH2O@SiO2 porous microspheres provided by the invention have a high CeO2 loading capacity, have a good adsorption effect on fluoride ions and iodate ions in water, and have a wide application prospect in the treatment of water pollution.

The invention discloses a urine iodine determination kit. The urine iodine determination kit comprises the following raw materials: a reagent R1 and a reagent R2. According to the invention, the urineiodine determination kit and the determination method thereof are strictly controlled; the proportion of each component of the urine iodine determination kit and preparation process parameters are strictly controlled; the urine is digested through ammonium persulfate; the urine does not need to be pretreated before detection; ferric ions react with iodide ions to generate ferrous ions and iodine,iodine reacts with sulfite ions and iodate ions to generate sulfate ions and iodide ions, the concentration of iodide ions in urine is determined by utilizing the indicator effect of phenanthroline on different iron ions, large-batch detection can be carried out, and a large amount of labor cost is reduced.

The invention discloses a high-precision urine iodine detection method which comprises the following steps: by taking N-bromosuccinimide as an oxidizing agent, oxidizing iodide ions in urine into iodate ions, introducing tetrabutylammonium iodide to react with the iodate ions, and forming an ion association compound by utilizing the electrostatic attraction effect between tetrabutylammonium cations and triiodide anions; and the ionic association compound is subjected to extraction and absorbance detection to establish a linear relationship between the iodine ion concentration and absorbance, thereby implementing high-precision detection on urine iodine. By means of the mode, the urine iodine can be safely and conveniently subjected to high-precision detection, the detection method is simple, convenient and easy to implement, high in detection speed and low in detection cost, the detection process has high sensitivity, precision and accuracy, high-precision detection of the urine iodinecan be achieved, the requirements of practical application can be met, and high application value is achieved.