Spectrophotometric determination of cerium with sulphanilic acid

Sarma, Pradyut; Dieter, Lowell H.

doi:10.1016/0039-9140(66)80052-8

Cited by 20 publications

(3 citation statements)

References 19 publications

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“…The Job's method 21 of continuous variation and the molar-ratio method 22 comparatively narrower detection range 24 . The present study has one of the lowest detection limits among other methods.…”

Section: Composition Of the Fluorescent Complex (Stoichiometry Of Thementioning

confidence: 99%

A Rapid Spectrofluorometric Method for the Determination of Aluminum at Nano-trace Levels in Some Real, Environmental, Biological, Hemodialysis, Food, Pharmaceutical, and Soil Samples Using 2′,3,4′,5,7-Pentahydroxyflavone

et al. 2020

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A very simple and non-extractive spectrofluorometric method for the swift determination of aluminum at nano-trace levels using 2',3,4',5,7-pentahydroxyflavone (morin) has been developed. Morin reacts in a slightly acidic (0.005-0.025M H2SO4) solution with aluminum in 20% ethanol to produce highly fluorescent complex in aqueous solution which has an excitation and emission wavelengths of λex=270 and λem=565 nm, respectively. Linear calibration graphs were obtained for 0.01-800 μg L-1 of Al providing a detection limit of 1 ng L-1. The limit of quantification of the reaction system was 10 ng L-1. The stoichiometric composition of chelate is 3:2 (Al: morin). The developed method was successfully used in the determination of aluminum in several Standard Reference Materials (SRM) as well as in some water, biological, hemodialysis solutions, food, pharmaceutical, soil sample, and complex synthetic mixtures. The results of the proposed method for biological and food analysis were found to be in excellent agreement with those obtained by AAS. The results of the proposed method for hemodialysis solutions were analogous with those obtained using the method described in British Pharmacopoeia within 95% confidence limits.

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Section: Composition Of the Fluorescent Complex (Stoichiometry Of Thementioning

confidence: 99%

A Rapid Spectrofluorometric Method for the Determination of Aluminum at Nano-trace Levels in Some Real, Environmental, Biological, Hemodialysis, Food, Pharmaceutical, and Soil Samples Using 2′,3,4′,5,7-Pentahydroxyflavone

et al. 2020

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“…The scientists therefore assume that in the near future elevated concentrations of cerium will also be found in lakes, rivers and groundwater [ 5 , 6 , 7 , 8 , 9 ]. The most popular method for the determination of cerium by far is spectrophotometry, as evidenced by the number of articles available on the spectrophotometric determination of cerium using a range of different reagents to produce coloured reaction products, such as sulphanilic acid [ 10 ], N-p-Chlorophenylcinnamohydroxamic acid [ 11 ] and Leuco Disulphine Blue [ 12 ]. Unfortunately, spectrophotometric methods are not dedicated to field measurements and additionally, in the case of cerium analysis, they often require the use of toxic reagents, but most importantly, the detection limits obtained are unsatisfactory in relation to actual cerium concentrations in environmental waters.…”

Section: Introductionmentioning

confidence: 99%

A Convenient Strategy for the Voltammetric Direct Determination of Ce(III) in Environmental Waters Using a Multi-Walled Carbon Nanotubes Modified Screen-Printed Carbon Electrode

Grabarczyk,

Fialek,

Wlazlowska

2024

Molecules

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A simple and fast stripping voltammetric procedure for trace determination of Ce(III) in environmental water samples has been developed. The procedure of cerium determination in the presence of Alizarin S and acetate buffer was employed as the initial method. The adsorption material, multi-walled carbon nanotubes, was used as a screen-printed electrode modifier ensuring efficient accumulation of the Ce(III)-Alizarin S complex. The calibration graph for Ce(III) for an accumulation time of 60 s was linear in the range from 1 × 10−8 to 7 × 10−7 mol L−1 with the linear correlation coefficient r = 0.997. The detection limit was estimated from three times the standard deviation of low Ce(III) concentration and an accumulation time of 60 s was about 3.5 × 10−9 mol L−1. The proposed method was successfully applied to Ce(III) determination at trace levels in environmental water samples, such as river, lake and rain water with recoveries ranged from 93% to 98%.

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“…This necessitated the development of convenient and reliable analytical methods for the determination of cerium. Analytical techniques such as X-ray uorescence, 31 ICP-AES, 32 electrothermal atomic absorption, 33 ICP-OES, 34 ICP-MS, 35,36 spectrophotometry [37][38][39] and stripping voltammetry 40,41 have been used to determine cerium(III) ion. Atomic absorption spectrophotometry based method lack sensitivity, while those on ame or ameless atomization or fuel rich or fuel decient ames have proven equally ineffective.…”

Section: Introductionmentioning

confidence: 99%

A highly sensitive and selective spectrofluorimetric method for the determination of cerium at pico-trace levels in some real, environmental, biological, soil, food and bone samples using 2-(α-pyridyl)-thioquinaldinamide

2019

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Spectrophotometric determination of cerium with sulphanilic acid

Cited by 20 publications

References 19 publications

A Rapid Spectrofluorometric Method for the Determination of Aluminum at Nano-trace Levels in Some Real, Environmental, Biological, Hemodialysis, Food, Pharmaceutical, and Soil Samples Using 2′,3,4′,5,7-Pentahydroxyflavone

A Rapid Spectrofluorometric Method for the Determination of Aluminum at Nano-trace Levels in Some Real, Environmental, Biological, Hemodialysis, Food, Pharmaceutical, and Soil Samples Using 2′,3,4′,5,7-Pentahydroxyflavone

A Convenient Strategy for the Voltammetric Direct Determination of Ce(III) in Environmental Waters Using a Multi-Walled Carbon Nanotubes Modified Screen-Printed Carbon Electrode

A highly sensitive and selective spectrofluorimetric method for the determination of cerium at pico-trace levels in some real, environmental, biological, soil, food and bone samples using 2-(α-pyridyl)-thioquinaldinamide

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