Determination of uranyl and thorium(IV) by gas chromatography of volatile mixed-ligand complexes

Sieck, Robert F.; Richard, John J.; Iversen, Kay.; Banks, Charles V.

doi:10.1021/ac60302a018

Cited by 40 publications

(7 citation statements)

References 16 publications

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“…Because of this importance, a simple, rapid and highly sensitive method for uranium determination is required. Several techniques have been developed for the determination of U(Vl) including a-spectrometry [1], gas chromatography [2], neutron-activation [3], spectrophotometry [4] and pulse polarography [5]. These techniques have various dif®culties often insuf®cient sensitivity and expensive instrumentation.…”

Section: Introductionmentioning

confidence: 99%

Square-Wave Stripping Voltammetry of Uranium(VI) at the Glassy Carbon Electrode. Application to Some Industrial Samples

El‐Maali

El‐Hady

1999

Electroanalysis

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A new method for trace uranium, based on the adsorptive accumulation of the chelate compound formed between U(Vl) and [4-(2-hydroxyethyl)-l-piprazine ethane sulfonic acid] on glassy carbon electrode is described. The optimum conditions for the complex formation were: 0.02 M HClO 4 , pH 4.0, accumulation potential 0.1 V (vs. AgyAgCl), frequency 15 Hz and SW amplitude 25 mV. Under these conditions, it was easy to determine the metal ion in a concentration range as low as 1610 À9 M. The effect of possible interfering metal ions, e.g., Cu(II), Fe(III), Al(III), Mg(II), etc. has been tested. Application of the method for the determination of the metal ion in some industrial samples has been successfully done.

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Section: Introductionmentioning

confidence: 99%

Square-Wave Stripping Voltammetry of Uranium(VI) at the Glassy Carbon Electrode. Application to Some Industrial Samples

El‐Maali

El‐Hady

1999

Electroanalysis

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“…"]<4"")+ -[Mo2C1"(H20)8_"](6"',)+ + 2e" (2) Mo2(HP04)42" + nCC -* [Mo2Q"(H20)8. "]+ 4HP042" (3) Reaction la can be reformulated (omitting the S042" and Cl" ligands) as Inorg. Chem.…”

Section: Discussionmentioning

confidence: 99%

Species with a triple molybdenum to molybdenum bond in aqueous solution

Bino¹

1981

Inorg. Chem.

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“…(6) and its linear form can be shown by Eq. (7). It is based on assumption that characteristics of the sorption curves are related to the porosity of the adsorbent [33]:…”

Section: Dubinin-radushkevich Isothermmentioning

confidence: 99%

“…Due to this, several techniques have been developed for the determination of uranium including neutron activation analysis [5], molecular fluorescence spectrometry [6], gas chromatography [7] and inductively coupled plasma spectrometry [8] suffers matrix interferences.…”

Section: Introductionmentioning

confidence: 99%

Determination of uranium(VI) using Penicillium chrysogenum immobilized on silica gel and spectrophotometer

Kulal

Pansare

Tetgure

et al. 2015

J Radioanal Nucl Chem

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A solid phase extraction method for separation and enrichment of uranium(VI) was developed using Penicillium chrysogenum immobilized on silica mixed with double distilled water. Conditions such as pH, sample flow rate and volume, eluting solution and interfering ions with uranium(VI) optimized and determined spectrophotometrically for quantitative sorbtion. Maximum adsorption found at monolayer was 1.3004 mg/g using Langmuir isotherm. The limits of detection (LOD) and limit of quantification (LOQ) of the proposed method for uranium(VI) was 0.61 lg/L and was 2.02 lg/L respectively. The method developed for the separation and recovery of uranium(VI) was applied sediment samples and tap water samples.

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Determination of uranyl and thorium(IV) by gas chromatography of volatile mixed-ligand complexes

Cited by 40 publications

References 16 publications

Square-Wave Stripping Voltammetry of Uranium(VI) at the Glassy Carbon Electrode. Application to Some Industrial Samples

Square-Wave Stripping Voltammetry of Uranium(VI) at the Glassy Carbon Electrode. Application to Some Industrial Samples

Species with a triple molybdenum to molybdenum bond in aqueous solution

Determination of uranium(VI) using Penicillium chrysogenum immobilized on silica gel and spectrophotometer

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