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Describe 5 cognate determinations of the redox titration?

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Redox titration, a common analytical technique, has been applied in various determinations as evidenced by the research papers. Firstly, iron content in different iron tablets was determined through redox titration using potassium permanganate as the oxidizing agent . Secondly, a spectrophotometric flow titration method was developed for ascorbic acid analysis in fruit juices and soft drinks, showcasing the versatility of redox titration in food analysis . Additionally, coulometric titrations were explored for cysteine and related compounds using iodine and bromine, demonstrating the adaptability of redox titration in different chemical systems . Moreover, a study focused on determining total antioxidant capacity in serum through redox titration methods, highlighting its application in biological sample analysis . Lastly, a redox titration method was devised for measuring Pd content and dispersity in palladium catalysts, showcasing its utility in catalyst characterization .

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Journal Article•DOI The determination of dispersity and metal content of supported palladium catalysts with redox titration Sándor Szabó, F Nagy, J Gyimesi - Show less +2 more 20 Jan 2003-Applied Catalysis A-general 2 Citations	The redox titration method in the paper determines sorbed hydrogen, Pd content, adsorbed oxygen, and calculates dispersity of supported Pd catalysts, showcasing 4 cognate determinations.
Open access•Journal Article•DOI Determination of the Total Mass of Antioxidant Substances and Antioxidant Capacity per Unit Mass in Serum Using Redox Titration Meijuan Zhang, Na Liu, Hui Liu - Show less +2 more 20 Jul 2014-Bioinorganic Chemistry and Applications 15 Citations	The redox titration method in the study determined total antioxidant capacity, mass of antioxidant substances, and average activity in serum, comparing different age groups.
Journal Article•DOI Coulometric redox titrations of some biologically active thiols with iodine in methanol and bromine in acetic acid Tibor J. Pastor, Jiří Barek - Show less +1 more 01 Sep 1989-Mikrochimica Acta 2 Citations	The redox titration method allows for the determination of cysteine, 2-thio-uracil, 6-mercaptopurine, and 6-thioguanine with iodine in methanol and bromine in acetic acid, enabling five cognate determinations.
Open access•Journal Article•DOI An automatic spectrophotometric titration procedure for ascorbic acid determination in fruit juices and soft drinks based on volumetric fraction variation Ana Paula S. Paim, Boaventura F. Reis - Show less +1 more 10 May 2000-Analytical Sciences 25 Citations	Not addressed in the paper.

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What are the factors that can influence the rate of the titration reaction?5 answersThe rate of a titration reaction can be influenced by various factors. Stirring rates and paddle shapes play a crucial role in determining the thermodynamic parameters of protein-ligand interactions during isothermal titration calorimetry (ITC) experiments. Additionally, the method of titration, including the control of titrant addition based on intensity measurements at different wavelengths, can impact the reaction rate. Monitoring the progress of titrate agent addition incrementally and controlling the titration speed based on specific parameters can also affect the reaction rate. Moreover, in medical infusion systems, titration schemes consider patient side effects to control the rate of medicament delivery, influencing the reaction rate. Maintaining a constant hydrostatic head of titrant in a reservoir can ensure a constant flow rate, impacting the titration reaction time and accuracy.

What are the indicators in redox titration in volumetric analysis chemistry ?4 answersIn redox titrations for volumetric analysis in chemistry, various indicators are utilized to determine the equivalence point accurately. Some common redox indicators include butaperazine dimaleate, trifluoperazine dihydrochloride, diethazine hydrochloride, promethazine hydrochloride, prochlorperazine maleate, and chlorpromazine hydrochloride. These indicators exhibit sharp and reversible color changes at the equivalence point, aiding in the precise determination of analytes like hydroquinone, Metol, and ascorbic acid. Additionally, the use of electrodes and circuits designed for amperometric detection in conjunction with specific reagents allows for quantitative volumetric determination of the endpoint in redox titrations, particularly for species like sulfite or sulfur dioxide in various media such as wine, beer, juices, and water.

Why standardisation is important in titration?5 answersStandardization is important in titration because it ensures accuracy and reliability in the measurement of chemical reactions. It provides a universal validation standard for titration calorimeters, reducing errors in the measured enthalpies of protein-ligand binding reactions. Standardization also allows for the evaluation of surface acid strength distribution and the assessment of total acidity without employing indicators. In addition, it enables the calculation of the concentration of a constituent in a sample by titrating it with a standard solution of known strength. Standardization is crucial in titration of bacterial formulations against Bacillus reference standards, as it helps establish standard procedures and improve the protocols used for bioassays and statistical methods applied. Overall, standardization ensures consistency and comparability in titration results, making it an essential aspect of the titration process.

What are the indicators for titration?5 answersIndicators for titration include natural materials such as hibiscus rosa-sinensis L. and clitoria ternatea L. flowers. Other indicators mentioned are phenolphthalein, thymol blue, and butterfly pea flower extract. Additionally, methyl red is mentioned as an indicator for titration involving weak base household ammonia. Anthocyanins obtained from berry extracts are also proposed as potential acid-base indicators.

How can the determination of Benzyl peroxide in pharmaceutical preparations be titration methode?3 answersThe determination of benzoyl peroxide in pharmaceutical preparations can be done using a titration method. One method involves the use of a sodium hyposulfite titration solution and a saturated potassium iodide solution. Another method involves the use of a calibrated sodium thiosulfate standard solution. Additionally, benzoyl peroxide can be determined using differential pulse voltammetry with a glassy carbon electrode in a dichloromethane-acetic acid solution. A kinetic spectrophotometric method can also be used, which is based on the reduction of benzoyl peroxide by iodide in a cationic micellar medium. Furthermore, an electrochemical potentiometric titration method can be employed, where a known concentration of a titrant is added to a catholyte containing the benzoyl peroxide. These different titration methods provide options for accurately determining the benzoyl peroxide content in pharmaceutical preparations.

Why titration is used in alcohol industry for ph analysis?5 answersTitration is used in the alcohol industry for pH analysis because it allows for the accurate determination of the concentration of acids and bases in nonaqueous solvents. The titration method involves the addition of a titrant solution of known concentration to the sample solution until the endpoint is reached, which indicates the completion of the reaction. In the alcohol industry, titration is particularly useful for determining the hydroxyl value of polyether polyols, which is important for quality control purposes. Additionally, titration can be used to analyze organic acids and bases in nonaqueous solvents, providing valuable information for the production and characterization of alcohol-based products. The use of titration in the alcohol industry ensures accurate pH analysis, allowing for the optimization of production processes and the maintenance of product quality.

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