Extraction-spectrophotometric determination of iron as the ternary tris(1,10-phenanthroline)-iron(II)-picrate complex

Morales, Alfonso; Toral, M. Inés

doi:10.1039/an9851001445

Cited by 22 publications

(4 citation statements)

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“…It was observed that the intensity and the shape of more sensitive band at 442 nm changed with rising concentration of picrate ion. Thus, this wavelength was an undesirable wavelength for analytical purpose [29]. Also, as can be seen from Fig.…”

Section: Resultsmentioning

confidence: 97%

Development of a dispersive liquid–liquid microextraction method for iron speciation and determination in different water samples

Tabrizi

2010

Journal of Hazardous Materials

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Section: Resultsmentioning

confidence: 97%

Development of a dispersive liquid–liquid microextraction method for iron speciation and determination in different water samples

Tabrizi

2010

Journal of Hazardous Materials

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“…The data in the above table reveals that the proposed method of determination of iron is more sensitive than those reported by Malik and Rao [27], Patil and Dhuley [28], Nagabhushana et al [29], Wang et al [30], Zhang et al [31], and Martins et al [36]. The methods proposed by Katmal and Hoyakava [24], Morales and Toral [25], and Reddy et al [26] are more sensitive than the present method. However they are less selective than the proposed method as they suffer interference from W(VI), Pd(II), Cr(III), Tl(I), Pb(II), Bi(III), Hg(II), Mo(VI), EDTA, CN − .…”

Section: Discussionmentioning

confidence: 93%

Spectrophotometric Determination of Iron(II) and Cobalt(II) by Direct, Derivative, and Simultaneous Methods Using 2-Hydroxy-1-Naphthaldehyde-p-Hydroxybenzoichydrazone

Devi¹,

Reddy

2012

International Journal of Analytical Chemistry

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Optimized and validated spectrophotometric methods have been proposed for the determination of iron and cobalt individually and simultaneously. 2-hydroxy-1-naphthaldehyde-p-hydroxybenzoichydrazone (HNAHBH) reacts with iron(II) and cobalt(II) to form reddish-brown and yellow-coloured [Fe(II)-HNAHBH] and [Co(II)-HNAHBH] complexes, respectively. The maximum absorbance of these complexes was found at 405 nm and 425 nm, respectively. For [Fe(II)-HNAHBH], Beer's law is obeyed over the concentration range of 0.055–1.373 μg mL−1 with a detection limit of 0.095 μg mL−1 and molar absorptivity ɛ, 5.6 × 104 L mol−1 cm−1. [Co(II)-HNAHBH] complex obeys Beer's law in 0.118–3.534 μg mL−1 range with a detection limit of 0.04 μg mL−1 and molar absorptivity, ɛ of 2.3 × 104 L mol−1 cm−1. Highly sensitive and selective first-, second- and third-order derivative methods are described for the determination of iron and cobalt. A simultaneous second-order derivative spectrophotometric method is proposed for the determination of these metals. All the proposed methods are successfully employed in the analysis of various biological, water, and alloy samples for the determination of iron and cobalt content.

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“…The urine was collected during a 4-day period after administration of desferal using replaceable cages. The urinary content of iron was determined by the method of [6] with our modifications. The intensity of hemosiderosis in internal organs was assessed by the histochemical method of Perls after fixation in neutral Formalin and embedding in paraffin.…”

Section: Methodsmentioning

confidence: 99%

A comparative study of two models of hemosiderosis used for the investigation of iron chelators

et al. 1996

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Two mouse models of hemosiderosis are compared. Increased deposition of iron in internal organs is confirmed histochemically. The effectiveness of desferal therapy is evaluated by urinary excretion of iron. Key Words: hemosiderosis; histochemistry; desferalProblems associated with the treatment of hemosiderosis and hemochromatosis have not been solved. Therefore, the development of effective therapeutic and preventive measures is very important. Desferal, an agent binding and eliminating excessive iron, has been used in clinical practice for more that two decades [4]. However, this preparation has a number of serious disadvantages [2,9,10,11], so the need for safe and effective drugs still remains. A great number of models for the investigation of iron chelators has been developed [3,5,8]. The search for new chelating agents [1] implies the evaluation of effectiveness of potential drugs. We think that the model proposed by C. G. Pitt [7] --induction of hemosiderosis in mice by injection of heterogenic erythrocytes --is one of the most convenient.Our objective was to compare two mouse models of hemosiderosis: the model developed by Pitt and our model, in which hemosiderosis was initiated by injection of allogenic erythrocytes. MATERIALS AND METHODSExperiments were performed on 100 outbred albino mice of both sexes weighing 20-23 g. The animalsHematology Research Center, Russian Academy of Medical Sciences, "-Moscow were divided into equal groups. Group I mice (n = 50) were intraperitoneally injected with human packed erythrocytes by the method of Pitt. Group II mice (n=50) were intraperitoneally injected with packed erythrocytes of outbred albino mice. In both groups erythrocytes were injected in doses 0.25, 0.5, and 1.0 ml during a 4-day period. Half of mice in each group were treated with desferal (daily dose 0.5 ml per animal), and the other half mice were injected with normal saline. The mice were decapitated before and at different periods of desferal or normal saline treatment. The effectiveness of treatment was evaluated from the content of iron in the urine and by histochemical methods. The urine was collected during a 4-day period after administration of desferal using replaceable cages. The urinary content of iron was determined by the method of [6] with our modifications. The intensity of hemosiderosis in internal organs was assessed by the histochemical method of Perls after fixation in neutral Formalin and embedding in paraffin. RESULTSAdministration of human packed erythrocytes to mice in a dose of 0.25 ml per animal resulted in the development of prolonged (1 month) hemosiderosis of internal organs, which was particularly

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Extraction-spectrophotometric determination of iron as the ternary tris(1,10-phenanthroline)-iron(II)-picrate complex

Cited by 22 publications

References 0 publications

Development of a dispersive liquid–liquid microextraction method for iron speciation and determination in different water samples

Development of a dispersive liquid–liquid microextraction method for iron speciation and determination in different water samples

Spectrophotometric Determination of Iron(II) and Cobalt(II) by Direct, Derivative, and Simultaneous Methods Using 2-Hydroxy-1-Naphthaldehyde-p-Hydroxybenzoichydrazone

A comparative study of two models of hemosiderosis used for the investigation of iron chelators

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