Extractive Spectrophotometric Determination of Titanium in Silicate Rocks, Soils and Columbite?Tantalite Minerals

Mondal, Rabin Kumar; Tarafder, Pranab Kumar

doi:10.1007/s00604-004-0272-9

Cited by 14 publications

(8 citation statements)

References 2 publications

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“…It was observed that even 300 mmol•L −1 Al 3+ did not interfere in the absorbance of Ti (IV) at 410 nm, which was in accord with the results of Varghese [24], Mondal [26], and Aydin [39].…”

Section: Effect Of Al 3+ Ionsupporting

confidence: 87%

“…During the spectrophotometric determination of Ti (IV), a number of organic chromogenic reagents, such as o-carboxyphenylfluorone [19], ponceau S [18], diantipyrylmethane [20], resacetophenone p-hydroxybenzoylhydrazone [24], thiocyanate [25], 2,3-dihydroxynaphthalene [26], 3,5,7,2',4'-penta hydroxy flavone [27], 5-(2', 4'-dimethylphenylazo)-6-hydroxypyrimidine-2,4-dione [28], bromopyrogallol red [29] and o-chlorophenylfluorone [30], have been used to produce an intense color for absorbance measurement. Most of these reagents are expensive, harder-to-obtain and environmental-unfriendly.…”

Section: Introductionmentioning

confidence: 99%

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Simple and Rapid Spectrophotometric Determination of Titanium on Etched Aluminum Foils

Du¹,

Li³

et al. 2014

AJAC

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Introduction of titanium oxides with high permittivity on etched aluminum foils' surface has been successfully utilized to increase specific capacitance of anode foils for aluminum electrolytic capacitors. In order to quantify the concentration of titanium (IV) on the etched aluminum foil precisely, a simple and rapid spectrophotometric procedure has been developed. After optimizing a series of variables including absorbance wavelength, concentration of nitric acid, concentration of hydrogen peroxide, nitration time and developing time, analytical precision and accuracy were tested by using standard working solution containing known amount of titanium (IV). The results showed that Lambert-Beer's law was obeyed in the range of 0.01 to 3.00 mmol•L −1. The relative standard deviation (RSD) ranged from 0.67% to 1.09% (n = 6), and the recovery was between 99.17%-100.03%. Investigation on effect of Al 3+ ion indicated that there was no interference in the absorbance of titanium (IV) at 410 nm. The proposed procedure was applied to real samples for the determination of titanium (IV), and the results were in a good agreement with the values certified by inductively coupled plasma-atomic emission spectrometry (ICP-AES).

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Section: Effect Of Al 3+ Ionsupporting

confidence: 87%

Section: Introductionmentioning

confidence: 99%

Simple and Rapid Spectrophotometric Determination of Titanium on Etched Aluminum Foils

Du¹,

Li³

et al. 2014

AJAC

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“…Different diaphragm thicknesses, membranes, and flow rates were tuned to achieve complete separation of the aqueous and organic phases. 28 showed similarly modest performance. (Table 1, entries 3 and 4).…”

Section: Continuous Membrane-based Lle and Separationmentioning

confidence: 96%

Liquid–liquid extraction in flow of the radioisotope titanium-45 for positron emission tomography applications

et al. 2018

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“…TiO 2 exists in the form such as anatase, rutile and brookite minerals. 5 Various methods have been used for determining titanium content in different types of samples, such as: inductively coupled plasma-atomic emission spectrometry (ICP-AES), 6 inductively coupled plasma-mass spectrometry (ICP-MS), 7 graphite furnace atomic absorption spec-trometry (GFAAS), 8 catalytic adsorptive stripping voltammetry (CASV), 9 neutron activation analysis (NAA), 10 spectrophotometry, 11,12,13 X-ray fluorescence (XRF), 14 and laser induced breakdown spectroscopy (LIBS). 15 Chemical composition of bauxite is usually expressed in the content of Al 2 O 3 , SiO 2 , Fe 2 O 3 , TiO 2 , and CaO, with the loss on ignition at 1075 °C.…”

Section: Introductionmentioning

confidence: 99%

Determination of Titanium Dioxide Content in Bauxites Using X-ray Fluorescence Spectrometry by Fusion and by Pressing

Blagojević

Lazić

Kešelj

et al. 2018

ACSi

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Bauxites of different deposits were analysed for their content of TiO2 (mass %), using X-ray fluorescence spectrometry and the reference spectrophotometric method JUS B.G8.514. The samples were prepared in two ways: fusion with a borax technique and pressing, after which beads were formed for the purpose of analysis. Certified reference samples of bauxite were used for producing a calibration curve. The equation for calculating the content of TiO2 (mass %) in the samples of bauxite was derived from the calibration curve. Results of the XRF method were tested statistically by means of the F-test and the t-test (the standard sample of the bauxite and the reference method). The values obtained from the afore mentioned tests for the fusion beads showed that the XRF method was precise and correct and that there were no systematic errors, whereas for the pressed beads this method showed significant systematic errors.

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Extractive Spectrophotometric Determination of Titanium in Silicate Rocks, Soils and Columbite?Tantalite Minerals

Cited by 14 publications

References 2 publications

Simple and Rapid Spectrophotometric Determination of Titanium on Etched Aluminum Foils

Simple and Rapid Spectrophotometric Determination of Titanium on Etched Aluminum Foils

Liquid–liquid extraction in flow of the radioisotope titanium-45 for positron emission tomography applications

Determination of Titanium Dioxide Content in Bauxites Using X-ray Fluorescence Spectrometry by Fusion and by Pressing

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