Determination of REEs distribution in monazite and xenotime minerals by ion chromatography and ICP-AES

Eh, Borai; Ma, Eid; Hf, Aly

doi:10.1007/s00216-001-1204-8

Cited by 28 publications

(9 citation statements)

References 16 publications

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“…Several analytical techniques such as ICP-AES, neutron activation analysis, highperformance liquid chromatography (HPLC), and ICP mass spectrometry can be useful for REE analysis [18][19][20]. Among these applicable methods, ICP-AES has been widely used in determining trace concentrations of elements including REEs in a variety of samples [21][22][23].…”

Section: Discussionmentioning

confidence: 99%

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Urinary Scandium as Predictor of Exposure: Effects of Scandium Chloride Hexahydrate on Renal Function in Rats

Tanida

Usuda

Kono

et al. 2009

Biol Trace Elem Res

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Some of the rare earth elements such as Sc are believed to be non-toxic and, at present, are widely utilized for the replacement of toxic heavy metals in technological applications, but they are not entirely free of toxicity, with hidden potential health risks. In this animal experiment, we report the urinary scandium (Sc) excretion rate and nephrotoxiciy in male Wistar rats. For this purpose, the rats were given a single dose of a solution of scandium chloride by intraperitoneal injection. The Sc excretion (U-Sc) was determined in 24-h urine samples by inductively coupled plasma-argon emission spectrometry along with the Sc nephrotoxicity, urine volume (UV), creatinine (Crt), beta-2-microglobulin (beta2-MG) and N-acetyl-beta-D-glucosaminidase (NAG). A dose-dependent Sc excretion of 0.0063% (r = 0.97) via 24-h urine was confirmed. The administration of Sc induced a significant decrease of UV and Crt and a significant increase of NAG and beta2-MG. These results suggest that U-Sc can be a useful tool for monitoring Sc exposure. The formation of Sc colloidal conjugates that deposit in glomeruli may be the cause of a reduction of the glomerular filtration rate. We propose that the analytical method and results described in this study will be of great importance for future toxicological studies on Sc exposure.

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Section: Discussionmentioning

confidence: 99%

“…Among these applicable methods, ICP-AES has been widely used in determining trace concentrations of elements including REEs in a variety of samples [21][22][23].…”

Section: Discussionmentioning

confidence: 99%

Urinary Scandium as Predictor of Exposure: Effects of Scandium Chloride Hexahydrate on Renal Function in Rats

Tanida

Usuda

Kono

et al. 2009

Biol Trace Elem Res

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“…In this method, lowcapacity cation-exchange resins are typically used as stationary phases, and mobile phases are aqueous solutions of complexing agents. Many eluents, such as a-hydroxyisobutyric acid (a-HIBA) [13][14][15], mandelic acid [16], oxalic acid [17], glycolic acid [18], lactic acid [19], etc., have been used for lanthanide separation. Fernández and Alonso [20] recently used ethylenediaminetetraacetic acid (EDTA) as a mobile phase in the separation of lanthanides.…”

Section: Introductionmentioning

confidence: 99%

Separation and direct detection of heavy lanthanides using new ion-exchange chromatography: fast Fourier transform continuous cyclic voltammetry system

2010

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separation on Nucleosil 100-5-SA, an ion-exchange column, was investigated. Separation of lanthanides was carried out using an isocratic program of a-hydroxyisobutyric acid (HIBA) eluent. Fast Fourier transform continuous cyclic voltammetry (FFT-CCV) at a gold microelectrode was used as the detection method. Simplicity, high precision and accuracy, time efficiency, and being economic are advantages of the developed technique in comparison with the previous reported ones. In addition, removal of oxygen from the test solution is not required, the detection limit is suitable and the technique is fast enough for determination of compounds in a wide variety of chromatographic methods. The waveform potential was continuously applied on an Au disk microelectrode (12.5 lm in radius). The influence of HIBA concentration as well as pH of eluent was optimized. The best performance of the method was obtained at pH of 4.0, scan rate of 30 V s -1 , accumulation potential of -300 mV, and accumulation time of 0.3 s. The proposed method displays a linear dynamic range of 140 and 18,000 lg L -1 and a detection limit of 50 lg L -1 . Precision, inter-day precision, and accuracy of the assay were reported too. A comparative evaluation of heavy lanthanides distributed in a sophisticated monazite and xenotime minerals solutions was carried out using both FFT-CCV, and inductively coupled plasma-atomic emission spectrometry (ICP-AES).

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“…Nowadays, stationary phases having both cation and anion exchange capacities are found to be more useful in separating heavy and transition metal ions [29] because the separation is controlled by the concentrations of free metal ions and the various insitu metal complexes formed, which are in an equilibrium with each other [30]. One such mixed ion exchanger namely Ion Pac CS5A has been widely used for the separation of lanthanides and transition metal cations in several matrices [31][32][33].…”

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confidence: 99%

Separation Behavior of U(VI) and Th(IV) on a Mixed Ion Exchange Column Using 2,6-Pyridine Dicarboxylic Acid as a Complexing Agent and Determination of Trace Level Thorium in Uranium Matrix Employing High Performance Ion Chromatography

Raut¹,

Roy²,

Das³

et al. 2013

IJAMSC

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Retention behavior of U(VI) and Th(IV) as their 2,6-pyridine dicarboxylic acid (PDCA) complexes on reversed phase and ion exchange (cation, anion and mixed ion exchange) columns was studied and based on the results, a simple ion chromatography method for the determination of trace level thorium in uranium oxide using 0.075 mM 2,6-pyridine dicarboxylic acid (PDCA) and 1 M KNO 3 in 1.2 M HNO 3 as eluent (flow rate 1 mL/min) was proposed. The advantage of the developed method is that the separation of uranium matrix is not required prior to the ion chromatographic determination of trace Th. Separation was carried out on a mixed ion exchange stationary phase and a 10 −4 M arsenazo (III) solution was used as post column reagent for detecting the separated metal ions. The separation of Th from uranium using PDCA in the present investigation is attributed through cation exchange mechanism. A calibration plot was constructed by following the standard addition method over the concentration range of 0.25 to 10 ppm of Th in the presence of uranium matrix, which resulted in a linear regression coefficient of 0.9978. The precision of the method was better than 5% and the LOD for Th was found to be 0.1 ppm (S/N = 3). The method has been validated by comparing the results with the results obtained from ICP-MS analysis where the Th is separated from the uranium matrix. The proposed method is simple, rapid, accurate and cost effective compared to techniques like ICP-MS or ICP-AES and is suitable for the routine kind of analysis.

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Determination of REEs distribution in monazite and xenotime minerals by ion chromatography and ICP-AES

Cited by 28 publications

References 16 publications

Urinary Scandium as Predictor of Exposure: Effects of Scandium Chloride Hexahydrate on Renal Function in Rats

Urinary Scandium as Predictor of Exposure: Effects of Scandium Chloride Hexahydrate on Renal Function in Rats

Separation and direct detection of heavy lanthanides using new ion-exchange chromatography: fast Fourier transform continuous cyclic voltammetry system

Separation Behavior of U(VI) and Th(IV) on a Mixed Ion Exchange Column Using 2,6-Pyridine Dicarboxylic Acid as a Complexing Agent and Determination of Trace Level Thorium in Uranium Matrix Employing High Performance Ion Chromatography

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