Showing papers on "Potassium iodate published in 2020"
TL;DR: The potential of iodine biofortification in strawberry fruits by means of soil and foliar fertilization was investigated in three field experiments and a preliminary phytotoxicity test in the greenhouse as discussed by the authors.
23 citations
TL;DR: In this paper, the effect of iodization on the chemical composition of lettuce (Lactuca sativa L. capitata) cv. "Melodion" was investigated in a hydroponic system NFT (Nutrient Film Technique).
Abstract: According to the recommendations of the World Health Organization (WHO), due to the increased risk of cardiovascular disease, the daily consumption of table salt should be reduced. To avoid the health consequences of iodine deficiency, it is necessary to include alternative food sources of this trace element in the human diet. One of the most effective ways of improving nutrition is the biofortification of crops with minerals and vitamins. The purpose of this study was to determine the influence of iodine biofortification (potassium iodate/KIO3/, 5-iodosalicylic acid/5-ISA/and 3.5-diiodosalicylic acid/3.5-diISA/) on the chemical composition of lettuce (Lactuca sativa L. capitata) cv. ‘Melodion’. Plants were cultivated in a hydroponic system NFT (Nutrient Film Technique). We compared the effect of iodine fertilization on the basic chemical composition, fatty acid profile, macro- and micronutrients, content of sugars, nitrogenous compounds, chlorides, and iodine compounds. The results obtained in this research indicate that the application of iodine compounds has an influence on changes of concentration of iodine and other compounds in the treated samples. In lettuce, the main fatty acid was linolenic acid; however, fertilization with iodine did not affect the fatty acid profile in plants, except for concentrations of myristic and arachidic acids. We also found that iodine fortification has positive effects on concentrations of some micro- and micronutrients. Moreover, the application of 3.5-diISA decreased the concentration of nitrates as compared to control and other treatments. Therefore, it may be postulated that the production of lettuce fortified with iodosalicylates is worthy of consideration due to the fact that it may be a good source of iodine and other compounds in the human diet.
22 citations
TL;DR: In this article, the effect of vanadium on iodine uptake via vanadium-dependent iodoperoxidase (vHPO) activity in sweetcorn plants (Zea mays L. subsp. Mays Saccharata Group) was investigated.
Abstract: Iodine and vanadium are elements that are closely related to organisms in water environments. Iodine and vanadium are known as “beneficial elements” that stimulate the growth and development of higher plants. Iodine is an essential element for the synthesis of the thyroid hormones triiodothyronine and thyroxine in the human body, with vanadium also known to be involved in the synthesis of thyroid hormones. The cooperation of both elements in the human body and in algae presents a question regarding the impact of vanadium interaction on iodine uptake in higher plants. The absorption of iodine from seawater in algae is known to be more efficient in the presence of vanadium, with key role in this process played by the iodoperoxidase enzyme, with vanadium acting as a cofactor. The study of the nature of the absorption of iodine by higher plants, and in particular by crops such as corn, remains insufficiently studied. The aim of this study was to investigate the effect of vanadium on iodine uptake via vanadium-dependent iodoperoxidase (vHPO) activity in sweetcorn plants (Zea mays L. subsp. Mays Saccharata Group) “Zlota Karlowa”. The experiment was carried out with organic and inorganic iodine compounds, namely potassium iodide (KI), potassium iodate (KIO3), 5-iodosalicylic acid (5-ISA), and 2-iodobenzoic acid (2-IBeA), each used in a dose of 10 μM. These compounds were applied with and without vanadium in the form of ammonium methavanadate (NH4VO3) at a dose of 0.1 μM. A double control was used, the first without iodine and vanadium and the second with vanadium but without iodine. Root length, root mass, and above-ground weight were significantly higher after iodine and vanadium compared to controls. Plants were collected at the five true leaf stage. vHPO activity level was much higher in the roots than in the leaves, but greater variation in the leaves was observed between treatments in terms of vHPO activity. Vanadium was shown to accumulate in the roots. The use of a relatively low dose of vanadium may have caused changes in the accumulation of this element in the aerial parts of the plant, leaves, and shoots. Fertilization with iodine and vanadium compounds decreased the accumulation of most minerals, macroelements, and microelements compared to controls. The obtained results of iodine accumulation in individual parts after applying iodine and vanadium fertilization testify to the stimulating effect of vanadium on iodine uptake and accumulation.
10 citations
TL;DR: The metabolism of high KIO3in vivo is characterized by two absorption process of I- in serum and the thyroid blocking effect, suggesting that such excess IO3- may have be reduced in the digestive tract before I- enters the blood.
6 citations
02 Jan 2020
TL;DR: In this paper, Biodiesel was produced in varied catalyst that prepared with Potassium Iodate, Potassium iodate and Methoxide using X-ray Diffraction for crystallinity, Scanning Electron Microscope for morphology and Hammet Method for basicity.
Abstract: The depletion of fossil fuels has led a concerted effort to search for renewable and environmental-friendly alternative energy sources. Biodiesel was successful produced from used cooking oil with Kaolin Catalyst. In this research, Biodiesel was produced in varied catalyst that prepared with Potassium Iodate, Potassium Iodinate and Methoxide. Kaolin was prepared from natural zeolite. The catalyst was analyzed with X-ray Diffraction for crystallinity, Scanning Electron Microscope for morphology, and Hammet Method for basicity. The crystallinity of catalyst that impregnated with Potassium Iodide, Potassium Iodate and Methoxide do not have significant L value. However, Methoxide Kaolin catalyst had the highest L value 354,3802, which is the highest crystallite size. K ion and methoxide that impregnated on the catalyst formed large number of porous agglomerates at the catalyst surfaces. Basicity test results showed that KI-Kaolin, KIO3− Kaolin, and Methoxide Kaolin had 0,188; 0,204, 0,24 base mmol. Biodiesel that used Methoxide Kaolin as catalyst on transesterification reaction produced highest biodiesel yield.
3 citations
07 Jan 2020
TL;DR: The results showed that the average levels of potassium iodate in cooked salt amounted to 32.13 mg/kg and dried salt content amounted to 50.32 mg/ kg, with a ratio of levels of 18.19mg/kg as discussed by the authors.
Abstract: The need for salt at this time is very high, especially in the food sector, so analytes that are declared very good for health must meet the requirements of the KIO 3 compound (potassium iodate), SNI requirements are 30-80 ppm. The purpose of this study was to compare the levels of potassium iodate in term salt with two processes, namely cooking and natural drying. The sample used comes from the term salt produced in Matang Glumpang Dua. The method used in this research is iodometry. The results showed that the average levels of potassium iodate in cooked salt amounted to 32.13 mg/kg and dried salt content amounted to 50.32 mg/kg, with a ratio of levels of 18.19 mg/kg. From the results of the analysis of the two salts meet the requirements specified by SNI 01-3556-2010.
2 citations
TL;DR: Both visual and quantitative data indicate that potassium iodate given at 30–60 min before 123I-mIBG injection provides comparable blockade effectiveness to lengthier administrations, suggesting that a single dose is well tolerated and practical.
Abstract: OBJECTIVE The aim of this study was to evaluate three thyroid blockade regimes to determine which protocol provides the optimal level of thyroidal protection for paediatric 123-I-meta-iodobenzylguanidine (mIBG) imaging and estimate the relative radiation dose inferred from unbound radioiodine. METHODS A total of 231 patients were retrospectively evaluated for thyroid uptake and categorised into five subgroups depending upon the protocol of thyroid blockade received. Efficacy of thyroid blockade was established by visual scoring and image quantitation with comparison against a control group. RESULTS Visual Likert scale responses were subjected to the Mann-Whitney U and Kruskal-Wallis tests, respectively. Statistical significance was reached for observed thyroid uptake in potassium perchlorate recipients (U = 1107, P = 0.001). No statistically significant difference was observed in thyroid uptake for iohexol blockade (U = 176, P = 0.71) or potassium iodate blockade despite variations in iodate dosage and duration (χ(2) = 0.203, P = 0.93). The analyses were repeated for the image quantitation data. A statistically significantly higher absorbed thyroid dose was observed using potassium perchlorate blockade compared with the control group (U = 719, P = 0.001). The Mann-Whitney U did not reach statistical significance in absorbed thyroid dose for iohexol blockade (U = 126, P = 0.209, r = -0.13). The Kruskal-Wallis test, conducted across the potassium iodate groups, did not reach statistical significance (χ(2) = 0.513, P = 0.774). The median absorbed thyroid dose across the iodate groups ranged from 3.58 to 3.91 mGy indicating comparable blockade effectiveness for single-dose potassium iodate. CONCLUSION Potassium iodate blockade is more efficacious compared with potassium perchlorate within the cohort observed. Both visual and quantitative data indicate that potassium iodate given at 30-60 min before I-mIBG injection provides comparable blockade effectiveness to lengthier administrations, suggesting that a single dose is well tolerated and practical.
2 citations
Patent•
17 Mar 2020
TL;DR: In this paper, a safe broad-spectrum povidone-iodine preparation and a preparation method and application of such a preparation is described. But the method is not suitable for animals, as it is not easy to decompose under the illumination condition and long in preservation time.
Abstract: The invention discloses a safe broad-spectrum povidone-iodine preparation and a preparation method and application thereof Each 1000g of the safe broad-spectrum povidone-iodine preparation is prepared from 10 to 155g of polyvinylpyrrolidone, 55 to 75g of refined iodine, 18 to 83g of potassium iodide, 001 to 3g of potassium iodate, 001 to 125g of a surfactant, 2 to 8g of a pH regulator andthe balance of water A weight ratio of the polyvinylpyrrolidone to the effective iodine is (16-36): 1 The safe broad-spectrum povidone-iodine preparation with a proper dosage cannot cause poisoning and digestive tract injury after being orally taken, can be used for preventing and treating diseases of animals, reducing antibiotic abuse and improving human food safety, and is good in stability, not easy to decompose under the illumination condition and long in preservation time
1 citations
TL;DR: In this article, a new method of determining Ge in AuGe alloys by potassium iodate (KIO3) potentiometric titration when Ge(II) and Au(0) are simultaneously reduced from Ge(IV) and AU(III) by sodium hypophosphite rather than by distillation separation was presented.
1 citations
Patent•
10 Jul 2020
TL;DR: In this article, an electrochemical co-production method of potassium iodate and hydroiodic acid is described, which consists of the following steps: compounding an anolyte solvent, compounding a catholyte, completely dissolving a certain amount of iodide and potassium hydroxide in a solvent of the anolytes according to a certain proportion and uniformly stirring to obtain the catholytes, performing electrolysis, carrying out electrolytic reaction by adopting a double-chamber electrolytic cell separated by a cationic membrane, adding the compounded anolyt
Abstract: The invention relates to the field of potassium iodate synthesis, and discloses an electrochemical co-production method of potassium iodate and hydroiodic acid. The electrochemical co-production method specifically comprises the following steps: compounding an anolyte solvent; compounding an anolyte; completely dissolving a certain amount of iodine and potassium hydroxide in a solvent of the anolyte according to a certain proportion, and uniformly stirring to obtain an anolyte; compounding a solvent of a catholyte; compounding a catholyte; dissolving iodine and iodide salt in a solvent of thecatholyte according to a certain proportion and a certain concentration, and uniformly stirring to obtain the catholyte; performing electrolysis; carrying out electrolytic reaction by adopting a double-chamber electrolytic cell separated by a cationic membrane; adding the compounded anolyte into an anode chamber, and adding the catholyte into a cathode chamber; performing crystallization; and stopping the electrolytic reaction after a certain electric quantity, cooling the anode mother liquor to a certain temperature for crystallization, and filtering to obtain potassium iodate after the anodemother liquor is crystallized. The synthesis method only comprises the steps of electrolysis, crystallization and filtration and is simple and has low requirements on production conditions without environmental pollution and avoids safety accidents.
Patent•
26 Feb 2020
TL;DR: In this paper, a gravimetric method was used to determine the mass fraction of fluorides, bromides, and chlorides in solid lithium electrolytes, which can be used for determination of halogenides of alkali metals at their joint presence in solid Li-Lithium electrolytes.
Abstract: FIELD: chemistry.SUBSTANCE: invention relates to analytical chemistry, specifically to methods of determining concentration of electrolyte components for thermal chemical current sources (TCCS), and can be used for determination of halogenides of alkali metals at their joint presence in solid lithium electrolytes. For this purpose grinding of solid sample of electrolyte is preliminary grinding, then taken and ground samples of solid lithium electrolyte are directed to separate stages of consecutive determination of fluorides, bromides and chlorides. To determine mass fraction of fluorides gravimetric method is used after preliminary fusion of ground sample with complex reagent from carbonate salts of potassium and sodium and further leaching mixture with hot distilled water. Precipitate of aluminum and silicon impurities is separated and neutralized with hydrochloric acid (HCl), then with nitric acid (HNO) at temperature not exceeding 40 °C. Fluorides are concentrated by precipitation with lead acetate solution, lead fluorochloride is washed at pH 3.5–4.6, then dried and weight fraction of fluorides is determined by formula:,where Cis mass fraction of fluorides, %; mis weight of produced lead fluorochloride precipitate, g; mis weight of sample of electrolyte taken during analysis for fluoride content, g; 0.0726 is conversion factor of lead fluorochloride weight per weight of fluoride; 200 – capacity of volumetric flask with electrolyte solution, cm; 100 is volume of aliquot of electrolyte solution, cm. In the absence of an aluminum-containing thickener in the electrolyte, the mass fraction of fluorides is determined by potentiometric titration with a fluoride-selective electrode. For this purpose, a portion of the ground sample is dissolved in a diluted HCl solution, into which a fluoride-selective and auxiliary electrodes are placed, and while continuously stirring on a magnetic mixer, titration of fluorides from the glass buret is carried out with a solution of lanthanum nitrate to an equivalence point according to a pH meter-ionomer; mass fraction of fluorides is calculated by formula:,where Cis weight fraction of fluorides, %; Vis volume of nitrate lanthanum solution, consumed for titration, cm; mis weight of sample of electrolyte taken during analysis for content of fluorides in absence of aluminum, g; Tis mass concentration of lanthanum nitrate solution by fluoride, mg/cm. To determine weight fraction of bromides in electrolyte water solution of ground sample of solid lithium electrolyte is prepared with addition of concentrated sulfuric acid (HSO) with subsequent addition of solution with mixture of potassium iodate and sodium thiosulphate. Reaction of lithium bromide with potassium iodide results in production of bromine, its removal by boiling and titration of excess potassium iodide to determine mass fraction of bromides by iodometric method by formula:,where Cis mass fraction of bromides in electrolyte, %; 10 is volume of iodine nitrate solution added in excess of potassium iodate, cm; mis weight of sample of electrolyte, taken during analysis for content of bromides, g; Cis mass concentration of potassium iodate solution in terms of bromide, mg/cm. To determine weight ratio of chlorides in electrolyte, difference is determined between total value of weight fractions of bromides and chlorides determined by mercurimetric titration in acid medium with indicator diphenylcarbazone, and preset mass fraction of bromides in sample, which is installed during titration of mercury (I) with nitric-acid. Then, volume difference of mercury (I) nitric-acid for titration of chlorides is calculated from difference of volumes and mass fraction of chlorides in lithium electrolyte corresponding to this value is calculated by formula:,where Cis weight fraction of chlorides in electrolyte, %;is volume of solution of mercury (I) nitric-acid, consumed for titration of sum of chlorides and bromides, cm;– volume of mercury (I) nitric-acid solution, consumed for bromides titration, cm:– mass concentration of nitric acid solution of mercury chloride and bromide, mg/cm;is mass fraction of bromides in electrolyte, %; mis a charge of electrolyte taken during determination of chlorides, g.EFFECT: invention provides high accuracy of determining individual concentrations of lithium halides in the presence of aluminum salts in solid lithium electrolyte.1 cl, 7 tbl, 2 ex
Patent•
12 Mar 2020
TL;DR: In this paper, the authors proposed a method for iodised edible salt, which allows to reduce energy consumption for salt iodization in 3-5 times to increase shelf life of the obtained product, to increase share of potassium iodate contained inside salt crystals.
Abstract: FIELD: food industry.SUBSTANCE: invention can be used in food industry. Method of iodised edible salt production includes introduction of potassium iodate in brine and treatment of brine with potassium iodate in ultrasound in cavitation mode at ultrasound frequency of more than 18 kHz and intensity of more than 4 W/cm. Time of ultrasonic exposure is selected so that the volume of evaporated brine decreases by more than 2 times when exposed to ultrasound. Ultrasonic treatment is started at temperature of brine differing from boiling point by not more than 30 °C. Then, iodine-containing additive (potassium iodate) and salt crystallized during sonication are mixed with non-iodised salt till concentration of potassium iodate 40 ± 15 mg/kg of salt in terms of on iodine.EFFECT: proposed method for production of iodised edible salt allows to reduce energy consumption for salt iodization in 3–5 times, to increase shelf life of the obtained product, to increase share of potassium iodate contained inside salt crystals.1 cl, 1 ex
Patent•
TSMC1
TL;DR: In this paper, a method of manufacturing a semiconductor structure includes: forming a dielectric layer over a conductive layer, removing a portion of the Dielectric Layer to form an opening exposing a part of the conductive Layer, filling a ruthenium-containing material in the opening and in contact with the dielectrics, and polishing the ruthensium containing material using a slurry including an abrasive and an oxidizer selected from the group consisting of hydrogen peroxide (H2O2), potassium periodate (KIO4), potassium
Abstract: A method of manufacturing a semiconductor structure includes: forming a dielectric layer over a conductive layer; removing a portion of the dielectric layer to form an opening exposing a portion of the conductive layer; filling a ruthenium-containing material in the opening and in contact with the dielectric layer; and polishing the ruthenium-containing material using a slurry including an abrasive and an oxidizer selected from the group consisting of hydrogen peroxide (H2O2), potassium periodate (KIO4), potassium iodate (KIO3), potassium permanganate (KMnO4), iron(III) nitrate (FeNO3) and a combination thereof.
Journal Article•
TL;DR: In this article, a direct colorimetric assay of pregabalin in commercial forms (capsules) is presented. But the method is not suitable for the determination of prebalin in pure and its capsules form.
Abstract: To develop in direct colorimetric assay of pregabalin in commercial forms (capsules). This work is depend on the oxidation of pregabalin using an increasing of potassium iodate (KIO3) in presence of sulphuric acid medium is produced by the reaction of iodide ion which in turn reacts excess iodine. To release iodine and to make sure that we interact with starch we get an active complex gives maximum absorption 600nm. The calibration plot is linear in the conc. Range of 20-240 g.ml-1 with amolar absorptivity is 0.239x103 l/mol.cm. The (LOD) and (LOQ) are 0.0014 and 0.0048 µg.mL-1 respectively. The proposed method can be applied for the determination of pregabalin in pure and its capsules form.