Palladium(II) and cobalt(II) sorption by silica gel sequentially modified by polyhexamethylene guanidine and a nitroso-R salt

Лосев, В. Н.; Didukh, S. L.; Трофимчук, А. К.; Leshchenko, Vitaly N.

doi:10.1016/j.mencom.2009.05.020

Cited by 10 publications

(7 citation statements)

References 2 publications

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“…An enrichment factor of 20 was achieved. Hence, the detection limits for Pd(II) were 2.4 and 2.3 mg l À1 for hyphenated sorption-spectrophotometric and sorption-fluorescence determination, respectively, which are lower than the values of SPE methods reported previously (Losev et al, 2009;Volovenko et al, 2013). 88 AE 3 (0.01) (0.094%) a n ¼ 3, P ¼ 0.95. b The contents (mg .…”

Section: Discussionmentioning

confidence: 55%

2,6-Diamino-1-N-methylpyrimidine as new fluorescent probe for palladium(II) determination using hyphenated technique

Volovenko

Keda

Skreminska

et al. 2017

Adsorption Science & Technology

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The selective and sensitive hyphenated technique for Pd(II) fluorescence and spectrophotometric determination was proposed. The procedure was based on preliminary solid-phase extraction of [PdCl4]2− onto silica modified with quaternary ammonium salts, with the subsequent elution from the surface by 2,6-diamino-1- N-methylpyrimidine solution and measurement of the fluorescence intensity. The luminescence enhancement effect of 2,6-diamino-1- N-methylpyrimidine in the presence of Pd(II) due to the complex formation was applied to the development of sorption-spectroscopic techniques for detecting trace amounts of palladium in solution.

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Section: Discussionmentioning

confidence: 55%

2,6-Diamino-1-N-methylpyrimidine as new fluorescent probe for palladium(II) determination using hyphenated technique

Volovenko

Keda

Skreminska

et al. 2017

Adsorption Science & Technology

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“…The supramolecular assembly based on silica gel 60 (Merck, 200 ± 230 nm fraction, specific surface area 270 m 2 g 71 , pore diameter 12 nm), polyhexamethylene guanidine and nitroso R salt was proposed as an adsorbent for palladium(II) and cobalt(II) from aqueous solutions. 48 Silica gel modified with salicylaldoxime was proposed as a sorption material for preconcentration, recovery and detection of zinc ions in the aqueous phase. The maximum sorption of the metal is observed at pH 5.5.…”

Section: Adsorbents Based On Non-covalently Modified Silicas Andmentioning

confidence: 99%

Organosilicon ion-exchange and complexing adsorbents

Власова¹,

Оборина²,

Grigoryeva³

et al. 2013

Russ. Chem. Rev.

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Data on the ion-exchange and complexing orga-Data on the ion-exchange and complexing organosilicon adsorbents published during the last 10 ± 12 years, nosilicon adsorbents published during the last 10 ± 12 years, including the results of systematic research of the authors, including the results of systematic research of the authors, are summarized and analyzed. The following types of are summarized and analyzed. The following types of substances are considered: silicas with covalently grafted substances are considered: silicas with covalently grafted modifiers, silicas and aluminosilicates with non-covalently modifiers, silicas and aluminosilicates with non-covalently grafted modifiers and carbofunctional polyorganylsilses-grafted modifiers and carbofunctional polyorganylsilsesquioxanes prepared by polycondensation of appropriate quioxanes prepared by polycondensation of appropriate organosilicon monomers. Adsorbents of these types find organosilicon monomers. Adsorbents of these types find extensive practical use, in particular, as analytical reagents extensive practical use, in particular, as analytical reagents for determination of metals in natural and artificial speci-for determination of metals in natural and artificial specimens, agents for isolation of valuable elements from indus-mens, agents for isolation of valuable elements from industrial wastes and agents for removal of especially hazardous trial wastes and agents for removal of especially hazardous components from wastes and effluents. The bibliography components from wastes and effluents. The bibliography includes 109 references includes 109 references. .

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“…In this work three nitrosonaphthols containing one (nitroso-N-salt, NNS) or two sulpho (nitroso-K-salt, NKS and nitroso-R-salt, NRS) groups in their molecules (see Scheme 1) were used for the preparation of adsorbents by modification of SiO 2 -PHMG. The PHMG coated silica modified with 1-nitroso-2-naphthol-3,6-disulfonic acid (nitroso-R-salt, NRS) has been successfully used for the preconcentration and determination of Pd(II) and Co(II) [28, 29].…”

Section: Introductionmentioning

confidence: 99%

Determination of Metals in Natural Waters by Inductively Coupled Plasma Optical Emission Spectroscopy after Preconcentration on Silica Sequentially Coated with Layers of Polyhexamethylene Guanidinium and Sulphonated Nitrosonaphthols

Didukh-Shadrina

Лосев

Samoilo

et al. 2019

International Journal of Analytical Chemistry

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A series of complexing adsorbents is prepared by coating silica particles with linear polyhexamethylene guanidinium (PHMG) chloride followed by saturation with a number of sulphonated nitrosonaphthols reagents electrostatically retained by positively charged polymer layer. PHMG coated silica is hydrolytically stable even during treatment with 6 M HCl heated up to 50 °C. The adsorption of 1-nitroso-2-naphthol-3,6-disulfonic acid (nitroso-R-salt), 2-nitroso-1-naphthol-4-sulfonic acid (nitroso-N-salt), and 2-nitroso-1-naphthol-3,6-disulfonic acid (nitroso-K-salt) on PHMG modified silica was studied. The effective immobilisation of sulphonated nitrosonaphthols was achieved in the range of pH of 3 - 8, while the adsorption of the monosulphonated reagent (nitroso-N-salt) is twice as high as the disulphonated analogues (nitroso-R-salt and nitroso-K-salt). The adsorption of Cu(II), Fe(III), Co(II), Ni(II), Al(III), Zn(II), Pb(II), Mn(II), and Cr(III) on prepared complexing adsorbents under static and dynamic conditions was studied as a function of time, pH, sample volume, and presence of interfering ions. Metal ions can be desorbed by using 1 M HCl or 1 M HNO3. The preconcentration factors of metals under optimized conditions are varied from 20 to 80. The developed method was used for the preconcentration of trace metals from natural waters followed by ICP-OES determination. The sub-ppb limits of detection of metals are achieved.

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Palladium(II) and cobalt(II) sorption by silica gel sequentially modified by polyhexamethylene guanidine and a nitroso-R salt

Cited by 10 publications

References 2 publications

2,6-Diamino-1-N-methylpyrimidine as new fluorescent probe for palladium(II) determination using hyphenated technique

2,6-Diamino-1-N-methylpyrimidine as new fluorescent probe for palladium(II) determination using hyphenated technique

Organosilicon ion-exchange and complexing adsorbents

Determination of Metals in Natural Waters by Inductively Coupled Plasma Optical Emission Spectroscopy after Preconcentration on Silica Sequentially Coated with Layers of Polyhexamethylene Guanidinium and Sulphonated Nitrosonaphthols

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