Title: Spectrochimica Acta Part B-Atomic Spectroscopy

Title: Spectrochimica Acta Part B-Atomic Spectroscopy

ISO Abbreviated Title: Spectroc. Acta Pt. B-Atom. Spectr.

JCR Abbreviated Title: Spectrochim Acta B

ISSN: 0584-8547

Issues/Year: 14

Journal Country England

Language: Multi-Language

Publisher: Pergamon-Elsevier Science Ltd

Publisher Address: The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, England

Subject Categories:

Spectroscopy: Impact Factor

Gomes, A.M., Sarrette, J.P., Madon, L. and Almi, A. (1996), Continuous emission monitoring of metal aerosol concentrations in atmospheric air. Spectrochimica Acta Part B-Atomic Spectroscopy, 51 (13), 1695-1705.

Full Text: S\Spe Act Par B-Ato Spe51, 1695.pdf

Abstract: Improvements of an apparatus for continuous emission monitoring (GEM) by inductively coupled plasma atomic emission spectrometry (ICP-AES) of metal aerosols in air are described. The method simultaneously offers low operating costs, large volume of tested air for valuable sampling and avoids supplementary contamination or keeping of the air pollutant concentrations. Questions related to detection and calibration are discussed. The detection limits (DL) obtained for the eightpollutants studied are lower than the recommended threshold limit values (TLV) and as satisfactory as the results obtained with other CEM methods involving air-argon plasmas.

Bağ, H., Türker, A.R., Coşkun, R., Saçak, M. and Yiğitoğlu, M. (2000), Determination of zinc, cadium, cobalt and nickel by flame atomic absorption spectrometry after preconcentration by poly(ethylene terephthalate) fibers grafted with methacrylic acid. Spectrochimica Acta Part B-Atomic Spectroscopy, 55 (7), 1101-1108.

Full Text: S\Spe Act Par B-Ato Spe55, 1101.pdf

Abstract: A method for the determination of Zn, Cd, Co and Ni by flame atomic absorption spectrophotometry after preconcentrating on poly(ethylene terephthalate) fibers grafted with methacrylic acid has been developed. The batch adsorption method was used for the preconcentration studies. Effect of pH, amount of adsorbent, concentration and volume of elution solution, shaking time and interfering ions on the recovery of the analytes have been investigated. Recoveries of Zn, Cd, Co and Ni were 97.3±0.4%, 98.3±0.2%, 94.1±0.3% and 96.5±0.6% at 95% confidence level, respectively, at optimum conditions. Langmuir adsorption isotherm curves were also studied for the analytes. The adsorption capacity of the adsorbent was found as 298, 412, 325 and 456 mg/g for Zn, Cd, Co and Ni, respectively. Poly(ethylene terephthalate) fibers grafted with methacrylic acid are suitable for repeated use without loss of capacity for more than thirty cycles. The proposed method was applied to the determination of trace metals in river water and synthetic sea water. Trace metals have been determined with high precision. (C) 2000 Elsevier Science B.V. All rights reserved.

Keywords: Trace Element, Preconcentration, Polymer, Water, Flame Atomic Absorption Spectrometry, Amberlite Xad-16 Resin, Emission

Godlewska-Żyłkiewicz, B. (2003), Biosorption of platinum and palladium for their separation/preconcentration prior to graphite furnace atomic absorption spectrometric determination. Spectrochimica Acta Part B-Atomic Spectroscopy, 58 (8), 1531-1540.

Full Text: S\Spe Act Par B-Ato Spe58, 1531.pdf

Abstract: Inexpensive baker’s yeast Saccharomyces cerevisiae and green algae Chlorella vulgaris, either free or immobilized on silica gel have been shown to selectively accumulate platinum and palladium from water samples in acidic medium (pH 1.6–1.8). Optimization of conditions of metals biosorption (sample pH, algae and yeast masses, adsorption time, temperature) was performed in batch mode. The procedure of matrix separation based on biosorption of platinum and palladium on algae C. vulgaris covalently immobilized on silica gel in flow mode was developed. The use of algae in flow procedure offers several advantages compared with its use in the batch mode. The procedure shows better reproducibility (<2%), improved efficiency of platinum retention on the column (93.3±1.6%), is less laborious and less time consuming. The best recovery of biosorbed metals from column (87.7±3.3% for platinum and 96.8±1.1 for palladium) was obtained with solution of 0.3 mol l^-1 thiourea in 1 mol l^-1 hydrochloric acid. The influence of thiourea on analytical signals of examined metals during GFAAS determination is discussed. The procedure has been applied for separation of noble metals from tap and waste water samples spiked with platinum and palladium.

Keywords: Platinum, Palladium, Separation, Biosorption, Graphite Furnace Atomic Absorption Spectrometry, Yeast, Immobilized Algae

? Costa, L.M., Ribeiro, E.S., Segatelli, M.G., do Nascimento, D.R., de Oliveira, F.M. and Tarley, C.R.T. (2011), Adsorption studies of Cd(II) onto Al₂O₃, Nb₂O₅ mixed oxide dispersed on silica matrix and its on-line preconcentration and determination by flame atomic absorption spectrometry. Spectrochimica Acta Part B-Atomic Spectroscopy, 66 (5), 329-337.

Full Text: 2011\Spe Act Par B-Ato Spe66, 329.pdf

Abstract: The present study describes the adsorption characteristic of Cd(II) onto Nb(2)O(5), Al(2)O(3) mixed oxide dispersed on silica matrix. The characterization of the adsorbent has been carried out by infrared spectroscopy (IR), scanning electronic microscopy (SEM), energy dispersive spectroscopy (EDS), energy dispersive X-ray fluorescence analysis (EDXRF) and specific surface area (S(BET)). From batch experiments, adsorption kinetic of Cd(II) was described by a pseudo-second-order kinetic model. The Langmuir linear isotherm fitted to the experimental adsorption isotherm very well, and the maximum adsorption capacity was found to be 17.88 mg g^-1. Using the effective material, a method for Cd(II) preconcentration at trace level was developed. The method was based on on-line adsorption of Cd(II) onto SiO₂, Al₂O₃, Nb₂O₅ at pH 8.64, in which the quantitative desorption occurs with 1.0 mol L^-1 hydrochloric acid towards FAAS detector. The experimental parameters related to the system were studied by means of multivariate analysis, using 2(4) full factorial design and Doehlert matrix. The effect of SO₄^2-, Cu²⁺, Zn²⁺ and Ni²⁺ foreign ions showed no interference at 1:100 analyte:interferent proportion. Under the most favorable experimental conditions, the preconcentration system provided a preconcentration factor of 18.4 times, consumption index of 1.08 ml, sample throughput of 14 h^-1, concentration efficiency of 4.35 min^-1, linear range from 5.0 up to 35.0 mu g L^-1 and limits of detection and quantification of 0.19 and 0.65 mu g L^-1 respectively. The feasibility of the proposed method for Cd(II) determination was assessed by analysis of water samples, cigarette sample and certified reference materials TORT-2 (Lobster hepatopancreas) and DOLT-4 (Dogfish liver). (C) 2011 Elsevier ay. All rights reserved.

Keywords: Activated Carbon, Adsorbent, Adsorption, Adsorption Isotherm, Carbon Nanotubes, Cd(II), Ceria Nanoparticles, Characterization, Desorption, Doehlert Matrix, Environmental-Samples, FAAS, Factorial Design, Isotherm, Kinetic, Kinetic Model, Langmuir, Multivariate Analysis, Pb(II) Ions, pH, Preconcentration, Selective Separation, SEM, Silica, Silica, Alumina, Niobia, Solid-Phase Extraction, System, Trace-Metals, Water