2013
DOI: 10.15826/analitika.2013.17.1.015
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Determining of micro-quantity of iron in fruits

Abstract: Разработаны методики фотометрического определения железа(III) с 1-фенил-2,3диметилпиразолон-5-азопирогаллолом в присутствии 1,10-фенантролина и α,α'-дипиридила. Исследовано комплексообразование железа(III) с реагентом и установлено, что в присутствии гидрофобных аминов образуются разнолигандные комплексы, при этом наблюдаются батохромные сдвиги в спектре поглощения и максимальный выход сдвигается в кислую среду по сравнению однороднолигандным комплексом. Изучено влияние концентрации реагирующих компонентов, вр… Show more

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“…In Table 1 shows the data that make it possible to compare the analytical characteristics of the procedures for the determination of iron(III) with the already known [2,7,19] methods. It can be seen that H 2 R has advantages over other reagents: the light absorption maximum is strongly shifted to the long wavelength region of the spectrum [2,7], the molar light absorption coefficient is much higher than the molar light absorption coefficients of other complexes [2,7,19].…”
Section: Comparative Characteristics Of Methods For the Determination...mentioning
confidence: 99%
See 1 more Smart Citation
“…In Table 1 shows the data that make it possible to compare the analytical characteristics of the procedures for the determination of iron(III) with the already known [2,7,19] methods. It can be seen that H 2 R has advantages over other reagents: the light absorption maximum is strongly shifted to the long wavelength region of the spectrum [2,7], the molar light absorption coefficient is much higher than the molar light absorption coefficients of other complexes [2,7,19].…”
Section: Comparative Characteristics Of Methods For the Determination...mentioning
confidence: 99%
“…Reagents containing OH groups and donor nitrogen atoms are considered the most suitable for the determination of iron(III) [1][2]. Methods for the photometric determination of iron(III) in the form of mixed ligand complexes (MLC) with this reagent in the presence of third components of various classes are highly sensitive [3][4][5][6][7][8].…”
Section: Introductionmentioning
confidence: 99%