Alternatives to official analytical methods used for the water determination in honey
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Relative standard deviation
Boehm titration has been carried out in different ways by different researchers to analyze the surface oxygen functional groups.The methods of CO2 expulsion,direct titration and back titration,duration of shaking and concentration of titrant are discussed.The suitable operation suggestions are proposed.
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Functional group
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It is a knotty point that teaching of titration constant (Kt) and conditional titation constant (K't)in acid - base titration. This paper gives an intimate knowledge of teaching of titration constant and conditional titration constant in acid - base titration.
Acid–base titration
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Constant (computer programming)
Base (topology)
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Titration is an analytical method used in biomedical sciences and analytical chemistry laboratories to determine the quantity or the concentration of a known or unknown substance. There are many kinds of titrations, but this investigation is fundamentally based on acid-base titration, in which the development of a mathematical titration model is explained and determined. In a titration experiment, the concentration and volume of the base added is proportionally equal to those of the acid. The concentration of the substance is determined by following this principle. Moreover, these calculations are usually approximate. Thus, the construction of a titration model is done to minimize the percent errors, simultaneously describing the effect of titration, and also allowing the determination of the characteristics of the unknown substance used. Furthermore, the values generated by the titration model are compared to the theoretical ones. It allows the verification of the mathematical model constructed. Subsequently, the efficiency of titration model is further tested by using a theoretical problem to exclude the errors from the experiment. This verification displays the accuracy of the accepted titration model. The concentration of the unknown acid is found by using this mathematical model.
Acid–base titration
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The optimum conditions were found for the determination of 2-mercaptobenzthiazole (MBT) by coulometric titration with the generated iodine using biamperometric indication of the titration end point. Use is made of the oxidation to the disulphide (n = 1) and to benzothiazole-2-sulphinate ( n = 4) in the regions pH 4.5-8.5 and 10-12, respectively. Eight repeated titrations to the disulphide gave the relative standard deviations 0.27% and 1.23% in the determination of 1 675 and 33.5 μg MBT, respectively, seven repeated titrations of 419 μg MBT to benzothiazole-2-sulphinate afforded results with the relative standard deviation 0.34%.
Coulometry
Benzothiazole
Iodometry
Relative standard deviation
Equivalence point
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Acid–base titration
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The progress of titrimetric analysis of platinum metals at home and abroad since 1980 has been reviewed. It includes direct titration, back titration, selective titration, replaceable titration, indirect titration, redox titration and others.
Redox titration
Amperometric titration
Complexometric titration
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Acid–base titration
Base (topology)
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Relative standard deviation
Standard solution
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