Highly sensitive sorption-luminescence determination of trace europium with preconcentration on silica chemically modified with iminodiacetic acid

Voronina, R. D.; Зоров, Н. Б.

doi:10.1134/s1061934807030021

Cited by 5 publications

(4 citation statements)

References 5 publications

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“…According to adsorption isotherms of Eu 3+ ions on the studied adsorbents, the maximum values of adsorption capacity under batch conditions were 0.15, 0.14, and 0.05 mmol/g for SiO 2 SO 3 H, SiO 2 ED3A, and SiO 2 , respectively, which is optimum for the luminescence determination of TC [27].…”

Section: Resultsmentioning

confidence: 96%

“…A combination of adsorption preconcentration with subsequent determination in the solid phase enhances the sensitivity of instrumental methods. The ARTICLES determination of tetracycline and its analogs after their solid-phase preconcentration on organopolymers (c min = 0.6 μg/L) [22], silicate fibers (c min = 0.022 μg/L) [23], and hybrid films based on SiO 2 modified by polyelectrolytes with solid-phase spectrophotometric or solid-phase luminescence determination in the concentration range 0.266−4.440 mg/L with the lower boundary of the analytical range for tetracycline 1.33 and 0.267 mg/L, respectively [24,25], and also on Silasorb 60 silica (for doxycycline, c min = 0.044 mg/L, analytical range 10 -7 -10 -5 M) [26], silica chemically modified by iminodiacetic acid (c min = 0.5 mg/mL) [27], Eu 2 O 3 nanoparticles (c min = 8.0 μg/L, analytical range 20-1000 μg/L) [28] was described. In [29], a number of adsorbents, such as silica (C18), pectin, cellulose fibers, and filter paper were tested in the solid-phase luminescence determination of tetracycline in foodstuffs and aqueous solutions.…”

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confidence: 99%

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Solid-phase luminescence determination of tetracycline in bottled water using chemically modified silica

et al. 2017

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Abstract⎯Possibility of using chemically modified silica (CMS) with covalently immobilized sulfonic and ethylenediaminetriacetate (ED3A) groups for the adsorption preconcentration and extraction of tetracycline (TC) from aqueous solutions is studied. The conditions of complex formation by europium(III) ions on the surface of these adsorbents are optimized. The effect of citrate and Eu 3+ ions on the luminescence intensity of the Eu-TC complex is shown. The luminescence properties of SiO 2 ED3AEu and SiO 2 SO 3 HEu systems with tetracyclines are studied depending on the acidity of the medium, time of phase contact, the ratio of the volume of the solution to the weighed portion of the adsorbent, and concentrations of the adsorbed substances. It is found that tetracycline is quantitatively extracted by CMS as a complex with europium(III) ions in pH range 6.5-8.0; adsorption capacity to tetracycline in the Henry region is as high as 0.07-0.09 mmol/g and partition coefficients are 10 3 -10 4 mL/g. A procedure is developed for the solid-phase luminescence determination of tetracycline using SiO 2 SO 3 HEu and SiO 2 ED3AEu systems with limits of detection of 0.8 and 2.0 nM, respectively; linearity range is 1 × 10 -9 -1 × 10 -5 M. The procedure is tested in the analysis of model mixtures and samples of bottled water.

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Section: Resultsmentioning

confidence: 96%

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confidence: 99%

Solid-phase luminescence determination of tetracycline in bottled water using chemically modified silica

et al. 2017

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“…The advantage of the new adsorbent is a simple synthesis. Adsorbents based on inorganic oxides (SiO 2 , Al 2 O 3 , TiO 2 , ZrO 2 ) [14][15][16][17][18] have a number of advantages: colorlessness, absence of proper luminescence, non-swelling, and thermal stability. The proposed adsorbents were synthesized in an aqueous media; the fixing of reagents on the surface of silica occurs due to the formation of electrostatic and hydrogen bonds.…”

Section: Introductionmentioning

confidence: 99%

Solid-phase extraction and fluorimetric determination of Zn(II) in natural water using novel adsorbent based on silica modified with polyhexamethylene guanidine and Ferron

Didukh-Shadrina

Buyko

Лосев

2019

International Journal of Environmental Analytical Chemistry

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Solid-phase extraction and fluorimetric determination of Zn(II) in natural water using novel adsorbent based on silica modified with polyhexamethylene guanidine and FerronNovel silica-based adsorbent layer-by-layer modified with polyhexamethylene guanidine and 7-iodine-8-hydroxyquinoline-5-sulfonic acid (Ferron) was used for preconcentration and adsorption-fluorimetric determination of Zn(II). A simple and express method for adsorbent preparation is described in the present work.The prepared adsorbent extracts Zn(II) from solutions with pH of 5.0-7.0, with the formation of a luminescent complex λ lum = 500 nm (λ ex = 380 nm) on the surface. An adsorption-fluorimetric method was developed for determination of Zn(II) in natural water using adsorbent sequentially modified with polyhexamethylene guanidine and Ferron; detection limit was 4 µg L -1 . The procedure was used for the analysis of water from rivers and artesian wells of the Krasnoyarsk Krai (Russia).

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“…These include spectrophotometry, [9][10][11] spectrofluorimetry, 12 neutron activation analysis (NAA), 13 inductively coupled plasma mass spectrometry (ICP −MS), 14 inductively coupled plasma atomic emission spectrometry (ICP −AES), 15 inductively coupled plasma optical emission spectrometry (ICP −OES), 16 atomic absorption spectrometry (AAS) [17][18][19] and luminescence. [20][21][22] These methods are usually time−consuming and require labour−intensive sample pretreatment and expensive equipment. Due to the cost of the instrumentation and therefore its unavailability for ICP−MS, ICP−AES, ICP−OES and AAS methods in many laboratories, the methods developed for the determination of Eu(III) will not be widely used by other researchers.…”

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confidence: 99%

Innovative Use of Carbon Nanotubes in Electrochemical Sensors for the Analysis of Europium in Samples from the Environment

Wlazlowska,

Grabarczyk,

Fialek

2024

J. Electrochem. Soc.

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An adsorptive stripping voltammetric method for the determination of trace europium(III) based on the adsorption of europium(III)−cupferron complex on the multiwall carbon nanotubes/spherical glassy carbon (MWCNTs/SGC) electrode modified with a lead film is presented. The method was optimized with respect to the main electrochemical parameters that affect the voltammetric determination (supporting electrolyte, pH, cupferron concentration, deposition potential and time). The calibration graph is linear from 5 × 10−9 to 5 × 10−7 mol L−1 with a correlation coefficient of 0.9993 for europium for a preconcentration time of 80 s. The detection limit for a preconcentration time of 80 s is as low as 1.3 × 10−9 mol L−1 for europium. To confirm the effectiveness of the developed procedure on the MWCNTs/SGC electrode, tests were also carried out on a glassy carbon electrode to compare the detection limits obtained. The developed procedure was tested for the effect of extraneous substances on the europium signal. The proposed method was successfully applied by studying natural samples and certified reference materials.

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Highly sensitive sorption-luminescence determination of trace europium with preconcentration on silica chemically modified with iminodiacetic acid

Cited by 5 publications

References 5 publications

Solid-phase luminescence determination of tetracycline in bottled water using chemically modified silica

Solid-phase luminescence determination of tetracycline in bottled water using chemically modified silica

Solid-phase extraction and fluorimetric determination of Zn(II) in natural water using novel adsorbent based on silica modified with polyhexamethylene guanidine and Ferron

Innovative Use of Carbon Nanotubes in Electrochemical Sensors for the Analysis of Europium in Samples from the Environment

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