Quinoline-8-ol-immobilized Amberlite XAD-4: Synthesis, characterization, and uranyl ion uptake properties suitable for analytical applications

Gladis, Mary J.; Rao, T. Prasada

doi:10.1007/s00216-002-1387-7

Cited by 58 publications

(24 citation statements)

References 35 publications

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“…More significantly, these results indicated that the improvement of uranium (VI) extraction is achievable by an imprinting procedure for the functionalized chitosan. Furthermore, the retention capacities of ion-imprinted or non-imprinted HQ-type chitosan resins in the present study are higher than other quinoline-8-ol impregnated 16 and anchored 17 polystyrene divinylbenzene resins, suggesting the advantages of chitosan over other synthetic base materials.…”

Section: Retention or Sorption Capacity For Uranium (Vi)mentioning

confidence: 51%

“…Recently, Oshita and co-workers 12 synthesized several novel chitosan resins derivatized with serine moiety, phenylarsonic acid moiety, 13 iminodi(methylphosphonic acid) moiety 14 and 3,4-dihydroxybenzoic acid 15 for collection/pre-concentration of uranium, which offered excellent uranium retention capacities of 49.4, 83, 117.5 and 330 mg g -1 resin, respectively. Quinoline-8-ol moiety has been immobilized in amberlite XAD-4 16 and anchored in chloromethylated polymeric resin beads, 17 which offered uranium retention capacities of 2.74 and 120.3 mg g -1 , respectively. Inoue and co-workers have prepared Ga templated quinoline-8-ol chitosan and investigated its adsorption of Mo(IV), V(IV), In(III), Al(III), Zn(II), Fe(II), Cd(II), and Ga(III).…”

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confidence: 99%

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Pre-concentration and determination of trace uranium (VI) in environments using ion-imprinted chitosan resin via solid phase extraction

Liu¹,

Cao

Zhang³

et al. 2010

J. Braz. Chem. Soc.

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Foram preparadas resinas quitosana de ligação cruzada com impressão molecular de uranil e sem impressão, possuindo grupamentos quinolin-8-ol. Em todos os casos um efeito de impressão significativo foi observado na comparação do percentual de extração de urânio (VI). A resina com impressão molecular foi usada para pré-concentração extrativa de urânio (VI) em fase sólida antes de determinação espectrofotométrica. Variáveis experimentais que influenciam a extração quantitativa de urânio (VI) foram otimizadas em método estático e em extração com coluna. A capacidade de retenção de urânio (VI) foi de 218 mg por g de resina, que é maior que a resina sem impressão molecular correspondente ou outra fase sólida adsorvente que possua grupamento quinolin-8-ol. O intervalo de pH ótimo encontrado foi 4,5-7,0. O urânio adsorvido foi fácil e quantitativamente eluido com HCl 1 mol L -1 (10 mL) sob uma vazão de 2 mL min . A exatidão do método foi testada com material padrão de referência de rocha de urânio. Além disso, o método foi aplicado para a determinação de urânio em amostras de solo contaminado e sedimento.The uranyl-ion-imprinted and non-imprinted cross-linked chitosan resins possessing quinoline-8-ol moiety have been prepared. In all the cases, a significant imprinting effect was noticed on comparing percent extraction of uranium (VI). The resulting ion-imprinted resin was used for solid phase extractive preconcentration of uranium (VI) prior to its determination by spectrophotometry. Experimental variables that influence the quantitative extraction of uranium (VI) were optimized by both static and column methods. The retention capacity found for uranium (VI) was 218 mg g -1 of resin which is higher than the corresponding non-imprinted resins and other solid phase extraction sorbents possessing quinoline-8-ol moiety. The optimum pH range was 4.5-7.0. Uranium adsorbed was easily and quantitatively eluted with 1 mol L -1 HCl (10 mL) at a flow rate of 2 mL min -1 . Interference studies showed a high tolerance of diverse ions and electrolyte species. The limit of detection was 2 µg L -1 and the dynamic linear range was 5-100 µg L -1. The accuracy of the developed method was tested with one uranium ore standard reference material. Furthermore, the proposed method was successfully applied for the determination of uranium in contaminated soil and sediment samples.

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Section: Retention or Sorption Capacity For Uranium (Vi)mentioning

confidence: 51%

mentioning

confidence: 99%

Pre-concentration and determination of trace uranium (VI) in environments using ion-imprinted chitosan resin via solid phase extraction

Liu¹,

Cao

Zhang³

et al. 2010

J. Braz. Chem. Soc.

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“…As can be seen in Table 3, the adsorption capacity of the resin for U(VI) ions using the column method is higher than chelate modified and/or imprinted SPE procedures reported in the literature up to now. 6,[29][30][31] However, even higher adsorption capacities (>0.102 mmol g -1 ) have been reported in the literature in similar studies using the batch method. 10,18,22 On the other hand, the resin can be successfully regenerated in over 250 operating cycles by the column method without any loss in its sorption capacity.…”

Section: Adsorption Isotherm and Adsorption Capacitymentioning

confidence: 87%

Synthesis of a Novel Chelating Resin for the Separation and Preconcentration of Uranium(VI) and Its Spectrophotometric Determination

Hazer

Kartal

2009

ANAL. SCI.

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A novel chelating polymer including three different functional groups, such as amidoxime (-C(NH2)=NOH), azo (-N=N-) and carboxylic acid (-COOH), was synthesized.The poly(acrylamidoxime-co-(1-(2-pirydylazo)-2-naphtyl-2-methacrylate)-co-methacrylicacid) (APM) polymer, prepared in three steps, was characterized by FT-IR and elemental analyses. The resin was used for solid-phase extractive separation and the preconcentration of trace amounts of uranium(VI). The determination of U(VI) was performed by a spectrophotometric method using Arsenazo III as a complexing agent. The optimum conditions were found for the quantitative recovery of U(VI) (pH 5; eluent, 3 mol L -1 HClO4; sample and eluent flow rates, 1 mL min -1 etc.). The capacity of the APM resin for U(VI) was found to be 24.2 mg g -1 . A preconcentration factor of 37.5 and the three sigma detection limit of 1.6 mg L -1 (n = 20) were achieved for U(VI) ions. The polymer was used for separating and preconcentrating the uranyl ion existing in seawater samples and a certified reference material (TMDA 70; fortified lake water sample).

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“…3 Several methods for determination of uranium based on the preconcentration techniques have been reported. Solid sorbents such as neutral polymer-Amberlite XAD series, 4 silica, 5 activated silica gel, 6 polyurethane foam 7 and cationic and anionic exchange resins 8 have been reported for the enrichment of uranium(VI) from dilute solutions prior to determination by a variety of analytical techniques.…”

Section: Introductionmentioning

confidence: 99%

Solid Phase Extraction of Uranium by Naphthalene‐Methyltrioctylammonium Chloride and Arsenazo(III) Adsorbent and Subsequent Spectrophotometric Determination

Behpour¹,

Ghoreishi²,

Qamsari³

et al. 2010

Chin. J. Chem.

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A simple and effective method has been presented for the preconcentration of uranium by solid phase extraction. For this purpose arsenazo(III) supported on naphthalene-methyltrioctylammonium chloride was used as an adsorbent and uranium solution at pH 3.5 with flow rate of 1 mL•min -1 was passed through the column. Therefore, uranium-arsenazo(III) complex was formed onto column. Uranium was quantitatively eluted with 5 mL of a 0.1% ammonium tetraphenylborate and determined by spectrophotometric method at 652 nm. Several parameters such as pH, amount of reagents, sample volume, etc. were investigated. The effect of diverse ions on the preconcentration has also been studied and the optimized conditions developed have been utilized for the trace determination of uranium. A preconcentration factor of 100 was achieved. The relative standard deviation (N＝8) was 0.5% for 3 ng• mL -1 of uranium. The three sigma detection limit (36) was 0.045 ng•mL -1 .

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Quinoline-8-ol-immobilized Amberlite XAD-4: Synthesis, characterization, and uranyl ion uptake properties suitable for analytical applications

Cited by 58 publications

References 35 publications

Pre-concentration and determination of trace uranium (VI) in environments using ion-imprinted chitosan resin via solid phase extraction

Pre-concentration and determination of trace uranium (VI) in environments using ion-imprinted chitosan resin via solid phase extraction

Synthesis of a Novel Chelating Resin for the Separation and Preconcentration of Uranium(VI) and Its Spectrophotometric Determination

Solid Phase Extraction of Uranium by Naphthalene‐Methyltrioctylammonium Chloride and Arsenazo(III) Adsorbent and Subsequent Spectrophotometric Determination

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