Application of an on-line preconcentration system in simultaneous ICP-AES

Schramel, P.; Xu, Li; Knapp, Günter; Michaelis, Markus

doi:10.1007/bf01242090

Cited by 27 publications

(4 citation statements)

References 14 publications

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“…Some elements (e.g., Hg, As, Se, Cd), which have low emission intensities when present at trace levels, cannot be detected by conventional ICP-AES systems. [1] To quantify these analytes in complex matrices it is necessary to separate and preconcentrate them, eliminating interferences from the matrix and concentrating the analyte that was previously present in a large volume of sample. [2] In recent years, on-line column preconcentration and separation methods combined with a variety of detection techniques such as flow-injection flame AAS, [3] graphite furnace AAS, [4] ICP-AES [5] and ICP-MS [6] have been developed.…”

Section: Introductionmentioning

confidence: 99%

A Flow-Injection-ICP System Sequential Multielemental Analysis with Simultaneously Mercury(II) Preconcentration Step

et al. 2003

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A flow-injection system for multielemental analysis with a mercury(II) preconcentration step using a resin Chelite-S Õ (Serva Feinbiochemica Heidelberg, Part No. 41709) packed minicolumn by inductively coupled plasma atomic emission spectroscopy is MARCEL DEKKER, INC. • 270 MADISON AVENUE • NEW YORK, NY 10016described. A mercury reductive elution procedure with a mixture of SnCl 2 /HCl was used, which allows use of 6 mol/L HCl solution instead of concentrated hydrochoric acid. The main parameters related to ICP operation, such as radio frequency power (950-1750 W), auxiliary argon flow (0.0-1.5 L/min) and spray chamber nebulizer pressure (15-35 psi), were studied. Optimization of the FIA system was reached by defining the best eluent carrier stream (1.4-2.8 mL/min), Hg carrier stream (10-40 mL min À1 ), loading time (0.5-4.0 min), sample flow rate (1.25-10.0 mL/min), temperature of reactor gas-liquid separator (GLS) (25-75 C) and eluent volume (50-350 mL). Throughput is around 30 samples per hour for analytical solutions within the range 50-2500 ng Hg(II)/L. Results from certified material showed good precision (RSD <3%, n ¼ 12) and no statistical difference was observed for real samples analyzed by AAS and by the proposed system.

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Section: Introductionmentioning

confidence: 99%

A Flow-Injection-ICP System Sequential Multielemental Analysis with Simultaneously Mercury(II) Preconcentration Step

et al. 2003

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“…[20][21][22][23][24][25][26][27][28][29][30] We describe here the implementation of an on-line matrix-analyte separation and preconcentration technique with ICP-MS to determine Zn, using a miniature column packed with SO 3quinolin-8-ol carboxymethyl-cellulose. [28][29][30][31] Isotope dilution (ID) techniques have been applied in several previous ICP-MS applications. 14,17,27,29,[32][33][34] Isotope dilution is well recognized as a definitive analytical technique for the determination of the trace elements.…”

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confidence: 99%

Determination of Trace Amounts of Zinc in Water Samples by Flow Injection Isotope Dilution Inductively Coupled Plasma Mass Spectrometry

Hwang¹,

Jiang²

1997

Analyst

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Flow injection isotope dilution ICP-MS was applied to the determination of zinc in several water samples. A matrix separation and preconcentration system was used for the separation of Mg, Ca, S and Cl matrix and preconcentration of trace amounts of zinc in high salt content samples. A complete preconcentration cycle was accomplished in 4 min. The isotope ratio for each injection was calculated from the peak areas of the flow injection peaks. The precision for the isotope ratio determination was better than 1.7%. A detection limit of 0.014 ng ml 21 was obtained for zinc with this method. The method was successfully applied to the determination of trace levels of zinc in SLRS-2 riverine water, SLEW-2 estuarine water, NASS-3 open ocean sea-water and CASS-3 nearshore sea-water reference samples.

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“…In the past years, various analytical techniques such as atomic absorption spectrometry (AAS) (Karosi et al 2006;Ren et al 2007) spectrophotometry (Wu et al 2007), stripping voltammetry (SV) (Grabarczyk et al 2006), inductively coupled plasma-mass spectrometry (ICP-MS) (Sun et al 2006), inductively coupled plasma-optical emission spectrometry (ICPOES) (Schramel et al 1992), and high performance liquid chromatography (HPLC) (Padarauskas and Naujalis 1998) have been successfully used to determine chromium in various samples. An extensive coverage of the available methods for chromium determination was put forth by Gomez and Callao, including the various types of sample matrices selected for the determination (Gomez and Callao 2006).…”

Section: Introductionmentioning

confidence: 99%

Novel catalytic fluorescence method for speciative determination of chromium in environmental samples

Adurty

Sabbu

2015

J Anal Sci Technol

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Background: Thiourea derivatives act as promising chemosensors for sensing transition metal ions. 1-(2-hydroxyphenyl) thiourea (HPTU) is one such chromophore that has potential for metal ion sensing. The current investigation reports the sensing of chromium species using transition metal-oxo-based reaction of 1,2-hydroxyphenylthiourea. Methods: The catalytic effect of chromium (III) and chromium (VI) on the oxidation of HPTU was studied. The reaction was followed spectrofluorimetrically by measuring the fluorescence intensities of the reaction product at λ ex = 416 and λ em = 520 nm, respectively.

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Application of an on-line preconcentration system in simultaneous ICP-AES

Cited by 27 publications

References 14 publications

A Flow-Injection-ICP System Sequential Multielemental Analysis with Simultaneously Mercury(II) Preconcentration Step

A Flow-Injection-ICP System Sequential Multielemental Analysis with Simultaneously Mercury(II) Preconcentration Step

Determination of Trace Amounts of Zinc in Water Samples by Flow Injection Isotope Dilution Inductively Coupled Plasma Mass Spectrometry

Novel catalytic fluorescence method for speciative determination of chromium in environmental samples

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