Flow injection determination of copper in mussels by flame atomic absorption spectrometry after on-line continuous ultrasound-assisted extraction

Moreno-Cid, A.; Yebra, M. C.

doi:10.1016/s0584-8547(02)00030-7

Cited by 39 publications

(10 citation statements)

References 15 publications

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“…Many preconcentration procedures for copper determination have been reported extensively. Liquid-liquid extraction using 1-(2'-pyridylazo)naphthol 5 and using water/oil/water emulsions as liquid surfactant membranes, 6 continuous ultrasound-assisted extraction, 7 liquid membranes technique, 8 coprecipitation with erbium hydroxide as collectors, 9 activated carbon adsorption [10][11][12][13] and other solid phase extraction [14][15][16][17][18][19] are well-known procedures for separation and determination of trace amount of metal ions.…”

Section: Introductionmentioning

confidence: 99%

Study on Preconcentration of Trace Copper Using Microcrystalline Triphenylmethane Loaded with Malachite Green

Liang

Zhao

et al. 2007

Chin. J. Chem.

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The paper describes a novel method for copper preconcentration using microcrystalline triphenylmethane loaded with malachite green prior to the determination by the flame atomic absorption spectrometry (FAAS). Under the optimum conditions, Cu(II) can be totally adsorbed on the surface of microcrystalline triphenylmethane, and completely separated from Pb(II), Cd(II), Co(II), Cr(III), Ni(II), Mn(II), Fe(III) and Al(III) by controlling acidity. The preconcentration factor of this proposed method is 200. The recovery is in a range of 97.5%-105%. The relative standard deviation (RSD) is not beyond 3.0%. The proposed method has been successfully applied to the determination of trace copper in various water samples with satisfactory results.

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Section: Introductionmentioning

confidence: 99%

Study on Preconcentration of Trace Copper Using Microcrystalline Triphenylmethane Loaded with Malachite Green

Liang

Zhao

et al. 2007

Chin. J. Chem.

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“…Stock solutions and environmental water samples (1000-mL each) were kept in polypropylene bottles containing 1-mL of concentrated HNO 3 . 4 ], was synthesized according to the procedure described in literature [17] and was analyzed for the metal analysis as certified substance.…”

Section: Chemicals and Reagentsmentioning

confidence: 99%

“…Therefore, trace and ultra-trace determination of copper [4] [5] and mercury [6] [7] is of great importance. Atomic absorption spectroscopy (AAS) and inductively coupled plasma-atomic emission spectroscopy (ICP-AES) have been the method of choice for the elemental analysis because of their utility, sensitivity and reliability.…”

Section: Introductionmentioning

confidence: 99%

Copper and Mercury in Food, Biological and Pharmaceutical Samples: Spectrophotometric Estimation as Cu(DDTC)<sub>2</sub>

Uddin¹,

Shah²,

Islam³

2014

AJAC

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“…Continuous ultrasound-assisted extraction coupled to an on-line flow injection-flame atomic absorption spectrometric manifold (FI-FAAS) avoids all of these drawbacks. This approach was used successfully to determine copper, iron and manganese in seafood samples [13,14,15]. In this work, a continuous ultrasound-assisted extraction system (CUES) was used to determine calcium in seafoods such as mussel, tune, sardine, hake, crab, prawn, nazor-shell, scallops, cockle and clam.…”

Section: Introductionmentioning

confidence: 99%

Continuous ultrasound-assisted extraction coupled to a flow injection-flame atomic absorption spectrometric system for calcium determination in seafood samples

Moreno-Cid

Yebra

2004

Analytical and Bioanalytical Chemistry

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Calcium was extracted on-line from solid seafood samples by a simple and rapid continuous ultrasound-assisted extraction system. This system is connected to a flow injection manifold, which allows the on-line flame atomic absorption spectrometric determination of calcium. This method enables the analysis of solid samples avoiding time-consuming traditional sample preparation methods and their inherent errors. The on-line manifold for calcium determination is the simplest possible, because a volume of 250 microL of acid extract is injected into an ultrapure water carrier stream. The acid extract was diluted on-line with lanthanum, which also acts as masking agent in order to avoid chemical interferences. The continuous monitoring of the calcium signal was accomplished by flame atomic absorption spectrometry. A Plackett-Burman experimental design was used for the optimisation of the continuous leaching procedure. The method allowed a total sampling frequency of 40 samples per hour, with a relative standard deviation for the complete procedure of 0.9% (for a sample containing 3414.35 mg/kg calcium (dry mass)). The limit of detection was found to be 44.4 mg/kg (dry mass) for 5 mg of sample. The analytical procedure was applied to real seafood samples.

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Flow injection determination of copper in mussels by flame atomic absorption spectrometry after on-line continuous ultrasound-assisted extraction

Cited by 39 publications

References 15 publications

Study on Preconcentration of Trace Copper Using Microcrystalline Triphenylmethane Loaded with Malachite Green

Study on Preconcentration of Trace Copper Using Microcrystalline Triphenylmethane Loaded with Malachite Green

Copper and Mercury in Food, Biological and Pharmaceutical Samples: Spectrophotometric Estimation as Cu(DDTC)<sub>2</sub>

Continuous ultrasound-assisted extraction coupled to a flow injection-flame atomic absorption spectrometric system for calcium determination in seafood samples

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Flow injection determination of copper in mussels by flame atomic absorption spectrometry after on-line continuous ultrasound-assisted extraction

Cited by 39 publications

References 15 publications

Study on Preconcentration of Trace Copper Using Microcrystalline Triphenylmethane Loaded with Malachite Green

Study on Preconcentration of Trace Copper Using Microcrystalline Triphenylmethane Loaded with Malachite Green

Copper and Mercury in Food, Biological and Pharmaceutical Samples: Spectrophotometric Estimation as Cu(DDTC)&lt;sub&gt;2&lt;/sub&gt;

Continuous ultrasound-assisted extraction coupled to a flow injection-flame atomic absorption spectrometric system for calcium determination in seafood samples

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Copper and Mercury in Food, Biological and Pharmaceutical Samples: Spectrophotometric Estimation as Cu(DDTC)<sub>2</sub>