University of North Florida
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Stuart Chalk, Ph.D.
Department of Chemistry
University of North Florida
Phone: 1-904-620-1938
Fax: 1-904-620-3535
Email: schalk@unf.edu
Website: @unf

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Iminodiacetate

Classification: Reagent -> Iminodiacetate

Citations 5

"Equilibrium And Kinetic Properties Of A Fast Iminodiacetate Based Chelating Ion Exchanger And Its Incorporation In A FIA ICP-AES System"
Talanta 1997 Volume 44, Issue 6 Pages 1037-1053
Payman Hashemi* and Åke Olin

Abstract: Chelating ion-exchangers based on cross-linked agarose (Novarose; Scand Inovata AB, Stockholm, Sweden) were characterized for their metal binding abilities. Material with a metal binding capacity of 55 µmol/ml showed fast adsorption and desorption of Cu(II), Cd(II), Ni(II) and Ca(II) under both batch and column modes. When incorporated in a column (0.5 cm x 6 mm i.d.) in a FIA system (diagram given) quantitative adsorption of Cu(II), Cd(II) and Ni(II) occurred at flow-rates of up to 110 ml/min. Elution was achieved with 1 mL 1 M HCl at 4 ml/min for ICP-AES detection. Calibration graphs were linear for 15-120, 45-350 and 90-700 ng Cd(II), Cu(II) and Ni(II), respectively, and the detection limits were 2, 5 and 10 ng, respectively. RSD were 1.3-2.4%. The method was applied determine Cu and Cd in tap water at a flow rate of 60 ml/min.
Cadmium(2+) Calcium(2+) Copper(II) Nickel(II) Water Spectrophotometry

"Online Removal Of Interferences In The Analysis Of Biological Materials By Flow Injection Inductively Coupled Plasma Mass Spectrometry"
J. Anal. At. Spectrom. 1993 Volume 8, Issue 5 Pages 691-696
Les Ebdon, Andrew S. Fisher, Paul J. Worsfold, Helen Crews and Malcolm Baxter

Abstract: Interference trace metals Cd, Cu, Mn, Pb, V and Zn were removed by chelation with 0.1 g of iminodiacetate-based resin (Na+ form; 50-100 mesh) in a micro-column. The metals were eluted into the VG PlasmaQuad PQ2 spectrometer with 3 M HNO3 by a flow injection procedure. Test recoveries were nearly quantitative except for V (90%) and Zn (85%) and the limits of detection were 0.6-9.9 ng/ml, equivalent to 75-1800 pg of element. Results were tabulated for the determination of the cited elements in five reference materials. The method was not suitable for the determination of Cr.
Cadmium Copper Manganese Lead Vanadium Biological Mass spectrometry

"Evaluation Of Controlled-pore Glass-immobilized Iminodiacetate As A Reagent For Automated Online Matrix Separation For Inductively Coupled Plasma Mass Spectrometry"
J. Anal. At. Spectrom. 1996 Volume 11, Issue 10 Pages 907-912
Simon M. Nelms, Gillian M. Greenway and Dagmar Koller

Abstract: A 0.04 g portion of PROSEP Chelating-1 iminodiacetate reagent (Bioprocessing, Consett, Co. Durham, UK) was packed as dry powder into a glass column (2.5 cm x 3 mm) that was incorporated in a flow injection manifold (diagram presented). A 3 mL sample was injected into a stream of H2O; transition-metal, U and Pb cations were retained on the column and subsequently eluted in an elution volume of 0.3 mL with 0.5 M HNO3. Calibration graphs prepared on the basis of water and seawater as matrices agreed, and both sets showed good linearity. RSD (n = 5) at 5 ng/ml were 5%, and recoveries were 62-113% for all the metals except Mn (35%).
Metals, heavy Environmental Environmental Sea Mass spectrometry

"Determination Of Cadmium And Lead At .mu.g/l Levels In Aqueous Matrices By Chelation Ion Chromatography"
J. Chromatogr. A 1993 Volume 640, Issue 1-2 Pages 207-216
N. Cardellicchio, S. Cavalli, J. M. Riviello

Abstract: Filtered seawater was preserved with concentrated HCl and before analysis was adjusted to pH 5.5 with 2 M ammonium acetate and Cd and Pb were pre-concentrated on a MetPac-CCl column (5 cm x 4 mm) packed with styrene-based macroporous cross-linked iminodiacetate-treated chelating resin (20 µm particles). The Cd and Pb were eluted with 75 mM H2SO4/0.1 M HCl/0.1 M KCl and separated by ion chromatography on an IonPac CS10 column (25 cm x 4 mm) packed with solvent-compatible poly(styrene-divinylbenzene) (8.5 µm particles) agglomerated with ion-exchange latex. The eluent (1 ml/min) was that used for pre-concentration. Post-column derivatization was carried out with 0.3 mM 4-(2-pyridylazo)resorcinol in 1 M 2-dimethylaminoethanol/aqueous 0.5 M NH3/0.5 M NaHCO3 buffer solution and detection was at 520 nm. Calibration graphs were rectilinear up to 500 ng of Cd and Pb. Detection limits were 2 and 6 ng of Cd and Pb, respectively.
Cadmium Lead Sea HPIC

"A Comparison Of Preconcentration Reagents For Flow Injection Analysis Flame Atomic Spectrometry"
Spectrochim. Acta B 1996 Volume 51, Issue 14 Pages 1909-1915
G. M. Greenway*, S. M. Nelms, I. Skhosana and S. J. L. Dolman

Abstract: The chelating resins Chelamine and Chelosolve (Fluka), the immobilized-iminodiacetate controlled-pore glass PROSEP Chelating-1 (Bioprocessing Ltd., Consett, UK) and an in-house-prepared immobilized-quinolin-8-ol controlled-pore glass (CPG-8-HQ) were evaluated for rapid online pre-concentration and matrix separation in the flow injection AAS determination of Cd, Cu(II), Mn(II), Ni(II) and Zn in a flow injection manifold designed for rapid matrix separation. With all four materials the matrix-matching of standards for determining the cited heavy metals in seawater was unnecessary. The most suitable material was PROSEP Chelating-1, which, however, showed inferior selectivity to CPG-8-HQ.
Cadmium Sea Spectrophotometry