Ion-chromatographic study of the possible absorption of copper and zinc by the skin of Rana pipiens

Vanatta, L.E.; Vanatta, John C.; Riviello, J. M.

doi:10.1016/s0021-9673(00)00061-3

Cited by 18 publications

(7 citation statements)

References 7 publications

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“…As the Ga(III)-PDCA complexes were thought to be the predominant species present in the ionexchange column, the chromatographic behaviour of the eluent was governed by the anionic exchange interactions between these chelation complexes and the column resin. It follows that the selectivity of the separation was not directly a consequence of the metal column interaction but a result of the metal-PDCA coordination, which subsequently modulated the column interaction (Lasheen et al, 2006;Vanatta et al, 2000). The metal-PDCA coordination complexes were detected through a post-column reaction with PAR, a water-soluble, relatively stable colorimetric agent.…”

Section: System Suitability and Assay Validationmentioning

confidence: 99%

Recovering Ga(III) from coordination complexes using pyridine 2,6‐dicarboxylic acid chelation ion chromatography

Staff

Brown

Hider

et al. 2010

Biomedical Chromatography

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Ion exchange chelation chromatography is an effective means to extract metals from coordination complexes and biological samples; however there is a lack of data to verify the nature of metal complexes that can be successfully analysed using such a procedure. The aim of this study was to assess the capability of pyridine 2,6-dicarboxylic acid (PDCA) to extract and quantify Ga(III) from a range of environments using standard liquid chromatography apparatus. The PDCA chelation method generated a single Ga(III) peak with a retention time of 2.55 +/- 0.02 min, a precision of <2% and a limit of detection of 110 microM. Ga(III) hydroxide complexes (highest stability constant 15.66) were used to successfully cross-validate the chelation method with inductively coupled plasma mass spectrometry. The PDCA assay extracted 96.9 +/- 1.2% of the spiked Ga(III) from porcine mucus and 100.7 +/- 2.7% from a citrate complex (stability constant 10.02), but only ca 50% from an EDTA complex (stability constant 22.01). These data suggest that PDCA chelation can be considered a suitable alternative to inductively coupled plasma mass spectrometry for Ga(III) quantification from all but the most strongly bound coordinated complexes i.e. a stability constant of <15.

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Section: System Suitability and Assay Validationmentioning

confidence: 99%

Recovering Ga(III) from coordination complexes using pyridine 2,6‐dicarboxylic acid chelation ion chromatography

Staff

Brown

Hider

et al. 2010

Biomedical Chromatography

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“…Therefore, the development of reliable methods to measure the amounts of Fe 3 + and Cu 2 + ions is of significant importance. A variety of techniques are available to detect the trace amount of metal ions such as electrochemical methods, [5] mass spectrometry, [6] inductive coupled plasma mass spectroscopy (ICP-MS), [7] atomic absorption spectrometry (AAS), [8] inductive coupled mass atomic emission spectrometry (ICP-AES), ion chromatography, [9] colorimetric analysis [10] and plasmon resonance Rayleigh scattering (PRRS) spectroscopy. [11] These techniques are applied in niche areas, they are not easily accessible, time consuming and expensive.…”

Section: Introductionmentioning

confidence: 99%

Thiazolothiazole‐Based Fluorescence Probe towards Detection of Copper and Iron Ions through Formation of Radical Cations

Sathiyan¹,

Chatterjee²,

Sen³

et al. 2019

ChemistrySelect

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This work describes the design and synthesis of fluorescent triphenylamine‐thiazolothiazole based donor‐acceptor‐donor chemosensor 4,4′‐(thiazolo[5,4‐d]thiazole‐2,5‐diyl)bis(N,N‐bis(4‐methoxyphenyl)aniline) (TTz‐1). TTz‐1 exhibited positive solvatochromism effect in the excited state due to its strong intramolecular charge transfer (ICT) properties. Potential application of TTz‐1 toward metal ion detection were explored systematically. It was established that the addition of Cu(ClO4)2 . 6H2O into TTz‐1 resulted in near‐infrared (NIR) colorimetric and fluorescent quenching allowing for Cu2+ detection. EPR studies indicate that formation of radical cation occurs when Cu2+ and TTz‐1 interact. TTz‐1 was also able to detect Fe3+ employing a color change from orange to colourless (fluorescent). It was observed that the TTz‐1 emission peak at 567 nm was quenched after addition of Cu2+ and Fe3+ metal ions. Electrochemical analysis showed that LUMO values of the TTz‐1 decreased after addition of Fe3+ and Cu2+. The limits of detection (LOD) for Cu2+ and Fe3+ detection by TTz‐1 were found to be 0.30 μM and 0.29 μM, respectively. These results suggest that the TTz‐1 is a highly selective and sensitive sensor for the detection of Cu2+ or Fe3+ ions.

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“…The common methods used to detect Pb 2+ or Cu 2+ include atomic/molecular absorption spectrometry [10,11], inductively coupled plasma emission/mass spectrometry [12,13], electrochemical methods [14,15,16], ion chromatography [17], X-ray fluorescence [18] and biological methods [19]. Although these methods offer excellent sensitivity and multi-element analysis, they are expensive, time-consuming and require skill and a laboratory.…”

Section: Introductionmentioning

confidence: 99%

Green Synthesis of Silver Nanoparticles Stabilized with Mussel-Inspired Protein and Colorimetric Sensing of Lead(II) and Copper(II) Ions

Cheon

Park

2016

IJMS

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This articles reports a simple and green method for preparing uniform silver nanoparticles (AgNPs), for which self-polymerized 3,4-dihydroxy-l-phenylalanine (polyDOPA) is used as the reducing and stabilizing agent in aqueous media. The AgNPs functionalized by polyDOPA were analyzed by UV–Vis spectroscopy, high-resolution transmission electron microscopy (HR-TEM), Fourier transform infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA), Raman spectrophotometry, and X-ray diffraction (XRD) techniques. The results revealed that the polyDOPA-AgNPs with diameters of 25 nm were well dispersed due to the polyDOPA. It was noted that the polyDOPA-AgNPs showed selectivity for Pb2+ and Cu2+ detection with the detection limits for the two ions as low as 9.4 × 10−5 and 8.1 × 10−5 μM, respectively. Therefore, the polyDOPA-AgNPs can be applied to both Pb2+ and Cu2+ detection in real water samples. The proposed method will be useful for colorimetric detection of heavy metal ions in aqueous media.

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Ion-chromatographic study of the possible absorption of copper and zinc by the skin of Rana pipiens

Cited by 18 publications

References 7 publications

Recovering Ga(III) from coordination complexes using pyridine 2,6‐dicarboxylic acid chelation ion chromatography

Recovering Ga(III) from coordination complexes using pyridine 2,6‐dicarboxylic acid chelation ion chromatography

Thiazolothiazole‐Based Fluorescence Probe towards Detection of Copper and Iron Ions through Formation of Radical Cations

Green Synthesis of Silver Nanoparticles Stabilized with Mussel-Inspired Protein and Colorimetric Sensing of Lead(II) and Copper(II) Ions

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