Direct sample introduction of wines in graphite furnace atomic absorption spectrometry for the simultaneous determination of arsenic, cadmium, copper and lead content

Ajtony, Zsolt; Szoboszlai, Norbert; Suskó, Emőke Klaudia; Mezei, P.; György, Krisztina; Bencs, László

doi:10.1016/j.talanta.2008.04.014

Cited by 96 publications

(66 citation statements)

References 43 publications

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“…Therefore it is very significant to examine the trace levels of it in environments [2].Presently, the mostcommon analytical methods for the determination of trace amount of lead are the flame atomic absorption spectrometry (FAAS) [3]. The electrothermal atomic absorption spectrometry (ETAAS) [4]and the inductively coupled plasma emission spectrometry (ICP) [5]. Flame atomic absorption spectrometry is by far the most commonly employed technique for analyte determination [6].…”

Section: Introduction:-mentioning

confidence: 99%

Sensitive determination of Lead in Brine water by Cloud Point Extraction-Flame Atomic Absorption Spectrometry Method using Mixed Matrix modifying agents.

Award¹,

AlabdulAziz²

2016

IJAR

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A cloud point extraction (CPE) method was developed for the separation and preconcentration of trace amounts of lead is combined with flame atomic absorption spectrometry (FAAS) to determine trace amounts of lead in brine water. The method is depended on the formation of the hydrophobic complex between Pb(II) and (APDC) followed by its extraction into a Triton X-114 using surfactant. The parameters such as pH of sample, concentrations ofAPDC and Triton X-114, equilibrium temperature, and equilibrium time, which affect both complexation and extraction, are optimized. Under the selected optimum conditions, and use of matrix modifying agents enable us to develop the direct method for determination Pb in brine water. The accuracy of the method was % (96)while the detection limit was found to be (0.1122 ppm) for preconcentration of 1.0 ml sample,for the determination of Pb(II) is obtained.

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Section: Introduction:-mentioning

confidence: 99%

Sensitive determination of Lead in Brine water by Cloud Point Extraction-Flame Atomic Absorption Spectrometry Method using Mixed Matrix modifying agents.

Award¹,

AlabdulAziz²

2016

IJAR

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“…3 La aplicación de ET AAS en el análisis unielemental en muestras de orina ha sido ampliamente señalada, específicamente en la determinación de Cr, [4][5][11][12][13][14][15] y Ni. 7,14 Asimismo, se ha señalado el análisis multielemental en orina mediante ET AAS, en particular la determinación de cromo, 16,17 y niquel, 18,19 y otros elementos, 17,18,20 así como en otros tipos de muestras como particulado ambiental, 21 aleaciones de aluminio, 22 aguas y materiales geológicos, 23 miel, 24 y vino, 25 entre otras. Hasta donde se conoce, la determinación de V en orina mediante ET AAS no se ha señalado, empleándose en su lugar ICP-MS con espectrómetros de alta resolución (HR-ICP-MS), 10,26 con celdas de reacción dinámica, 8 y octopolos con celda de colisión, 9 así como la espectrometría de emisión atómica con plasma acoplado inductivamente (ICP OES) aplicando procedimientos previos de separación y preconcentración del elemento, para evitar las interferencias espectrales así como alcanzar los límites de detección requeridos.…”

Section: Introductionunclassified

Determinación simultánea de Cr, Ni y V en orina mediante et aas

Álvarez¹,

Hermida²

2011

Quím. Nova

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SIMULTANEOUS DETERMINATION OF Cr, Ni AND V IN URINE BY ET AAS. A procedure for the simultaneous determination of Cr, Ni, and V in urine by electrothermal atomic absorption spectrometry (ET AAS) was optimized by factorial design, and performed at a pyrolysis and atomization temperatures of 1300 and 2500 ºC, respectively, using 15 μg de Mg(NO 3 ) 2 as chemical modifier. Characteristics mass of 14, 6 and 220 rg and detection limits of the method of 0.07, 0.38 and 0.75 μg L -1 were obtained for Cr, Ni and V respectively. The methodology was validated using a Liphochek Urine Metals Control sample (Bio-Rad) (P=0.05). The methodology was applied to samples of voluntary Venezuelan people, not environmentally exposed to specific emissions, and results ranging from < LOD-1.1 and 1.3-3.3 μg L -1 was observed for Cr and V, respectively, and not detectable levels for Ni.Keywords: simultaneous analysis; ET AAS; metals in urine. INTRODUCCIÓNEl cromo, el níquel y el vanadio forman parte de numerosas aleaciones metálicas, 1,2 y pueden encontrarse en el aire de ambientes industriales asociados a actividades metalúrgicas, de refinación de minerales, producción de cemento y en plantas de energía que emplean combustibles fósiles. 3 De manera particular, la fuente más común de Cr en el ambiente se origina por los desechos de las industrias de cromado y electrodeposición, 4,5 de textiles y pieles. 6 Los efectos nocivos del exceso (Cr, Ni y V) o falta (Cr y V) de estos metales sobre la salud humana son conocidos, 3 y su cuantificación en fluidos biológicos es importante, especialmente en el monitoreo de deficiencias nutricionales y exposición ambiental. 4 En el caso de la exposición ambiental, la evaluación de riesgo es realizada usualmente mediante la determinación de los metales presentes en los fluidos biológicos, entre los cuales, la orina es empleada ampliamente debido a que es una muestra fácilmente disponible y un indicador útil de la exposición a metales tóxicos. [3][4][5][6][7] La concentración de cromo, níquel y vanadio en la orina se encuentra en niveles traza, por lo que su determinación requiere el empleo de técnicas analíticas muy sensibles como la espectrometría de masas con plasma acoplado inductivamente (ICP-MS) y la espectrometría de absorción atómica con atomización electrotérmica (ET AAS). ICP-MS es una técnica sofisticada y costosa que, además de su elevada sensibilidad y capacidad de análisis multielemental, puede presentar interferencias por iones poliatómicos que afectan, entre otras especies, la determinación de 52 Cr y 51 V cuando se emplean equipos de baja resolución o sin celda de reacción. [8][9][10] Por su parte, ET AAS es una técnica que proporciona la sensibilidad requerida para este tipo de análisis, y su empleo se ve favorecido ya que es menos costosa, muchas veces el pre-tratamiento es más sensible, y las interferencias que presenta pueden solucionarse, generalmente, empleando modificadores químicos, apropiados programas de calentamiento y sistemas de corrección de fondo apropiados. 3 La aplicación de...

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“…According to a recent literature survey a wide variety of analytical techniques have been applied to quantify the trace metal content of wine, such as ion chromatography, stripping potentiometry, inductively coupled plasma mass spectrometry, inductively coupled plasma optical emission spectrometry, flame atomic absorption spectrometry, and electrothermal atomic absorption spectrometry (ET AAS). 10,11 Sample pretreatment is usually required for achieving good accuracy and to destroy the organic matrix and/or to extract the metal ions bound in inorganic and organic complexes. 12 Besides this, cadmium is present in wine at low concentration and its determination in this kind of sample requires the use of analytical techniques of high sensitivity.…”

Section: Introductionmentioning

confidence: 99%

“…In this context, ET AAS is a good choice, because of its good detectivity and its tolerance of inorganic and organic matrices, which should make the direct determination of cadmium in wine without any sample preparation possible. 11,13,14 Chemometric techniques have been applied in analytical chemistry for evaluation of results and also for optimization of analytical methods. [15][16][17][18][19] For evaluation, the multivariate analysis techniques: principal component analysis (PCA) and hierarchical cluster analysis (HCA) are the ones that are employed most frequently.…”

Section: Introductionmentioning

confidence: 99%

Multivariate optimization and validation of an analytical method for the determination of cadmium in wines employing ET AAS

Ferreira¹,

Jesus²,

Matos³

et al. 2009

J. Braz. Chem. Soc.

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O presente trabalho descreve a otimização e validação de um método para determinação direta de cádmio em amostras de vinho por espectrometria de absorção atômica com atomização eletrotérmica (ET AAS). A otimização foi realizada empregando um planejamento fatorial completo de 2 níveis, incluindo os fatores: tempo (10 s) e temperatura de pirólise (600 o C), temperatura de atomização (1300 o C) e massa de modificador (15 µg). Sob as condições otimizadas, foi encontrada uma massa característica de 0,7 pg, limite de detecção e quantificação de 0,030 e 0,100 µg L

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Direct sample introduction of wines in graphite furnace atomic absorption spectrometry for the simultaneous determination of arsenic, cadmium, copper and lead content

Cited by 96 publications

References 43 publications

Sensitive determination of Lead in Brine water by Cloud Point Extraction-Flame Atomic Absorption Spectrometry Method using Mixed Matrix modifying agents.

Sensitive determination of Lead in Brine water by Cloud Point Extraction-Flame Atomic Absorption Spectrometry Method using Mixed Matrix modifying agents.

Determinación simultánea de Cr, Ni y V en orina mediante et aas

Multivariate optimization and validation of an analytical method for the determination of cadmium in wines employing ET AAS

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