Trace analysis of heavy metals in groundwater samples by ion chromatography with post-column reaction and ultraviolet–visible detection

Santoyo, E.; Santoyo-Gutiérrez, S.; Verma, Surendra P.

doi:10.1016/s0021-9673(00)00358-7

Cited by 55 publications

(18 citation statements)

References 24 publications

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“…Usually, concentration of 15 mmol L −1 of tartaric and citric acid, and 6 mmol L −1 of dipicolinic acid in chromatographic separation of metals are enough to obtain adequate resolution. 3,4 Therefore, the concentrations of polycarboxylic acids in study of the possible effects in plasma were set in the range which covered the most of the separation purposes.…”

Section: Testing Of Plasma Tolerancementioning

confidence: 99%

Evaluation of Matrix Effects of Polycarboxylic Acid Introduction in Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES)

Rončević¹,

Svedružić²

2012

Croat. Chem. Acta

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Abstract. In order to establish prerequisite conditions for hyphenation of inductively coupled plasmaatomic emission spectrometry with liquid chromatography, the effects on plasma signal by loading of low concentrated solutions of tartaric, citric and dipicolinic acid were studied. The intensities of Mn, Li, Mg, Cd and Cu lines were observed in axial and radial signal collection mode. Influences of different ligand concentrations on excitation conditions compared to water were evaluated on the basis of signal-tobackground ratio (SBR) and limits of detection (LOD). Lower LOD values were established in the solutions of tartaric and citric acid than in water solution. Higher values were observed in solutions of dipicolinic acid. The Mg II / Mg I line intensity ratio was calculated in order to compare the changes in excitation conditions. Polycarboxylic acid matrices showed slightly departures from equilibrium conditions (≈3 %) in radial observation mode. The effects of polycarboxylic acids monitored on ionic and atomic lines of Cd and Cu were of more complex nature which regards to the type of compound and concentration of the acid solution.(doi: 10.5562/cca2066)

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Section: Testing Of Plasma Tolerancementioning

confidence: 99%

Evaluation of Matrix Effects of Polycarboxylic Acid Introduction in Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES)

Rončević¹,

Svedružić²

2012

Croat. Chem. Acta

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“…However, coupled to fast population growth, industrialization, as well as some agricultural activities, increased the risks of pollution in natural environments like water, soil and the atmosphere in the last 150 years (Santoyo et al, 2000). The problems of contamination with toxic metals started in the Middle Age, with the mining activities, but were accelerated in the beginning of the nineteen century, with the processing of metals in chemical and foundry plants (Vink et al, 1999).…”

Section: Introductionmentioning

confidence: 99%

Seasonal study of concentration of heavy metals in waters from lower São Francisco River basin, Brazil

et al. 2016

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In this study we determined the concentration of metals (Cd, Cr, Cu, Fe, Mn, Ni, Pb and Zn) in the water lower São Francisco River basin, to evaluate the influence of urbanization and industrialization on environmental changes in the water resource. All samples were analyzed using the IUPAC adapted method and processed in an atomic absorption spectrophotometer. The sampling stations located near the industrial areas were influenced by industrialization because they presented higher concentrations of Cd, Cr, Ni and Cu. The other sampled locations showed changes with regard the trace elements probably originating in the soil, like Fe, Zn and Pb. There was a gradual increase in the concentrations of metals, in general, in the period of highest rainfall of the hydrographic network. Overall, except for Zn and Mn, the trace elements exceeded the maximum allowed value established by national legislation (CONAMA). Lower São Francisco River basin has suffered interference from urbanization and industrialization, so awareness programs should be developed so as to control and lessen future problems.Keywords: trace elements, industrialization, São Francisco river, urbanization. Estudo sazonal das concentrações de metais pesados em águas da bacia do submédio rio São Francisco, Brasil ResumoNeste trabalho foi determinada a concentração dos metais (Cd, Cr, Cu, Fe, Mn, Ni, Pb e Zn) na água do submédio Rio São Francisco para avaliar a influência da urbanização e da industrialização nas modificações ambientais do recurso hídrico. Todas as amostras foram analisadas usando o método IUPAC adaptado e processados em um espectrofotômetro de absorção atômica. As estações de amostragem localizadas próximas às áreas industriais sofreram influência da industrialização por apresentarem concentrações mais elevadas de Cd, Cr, Ni e Cu. Os demais locais amostrados apresentaram modificações com relação aos elementos traços de provável origem sedimentar como Fe, Zn e Pb. Houve aumento gradativo nas concentrações dos metais, de forma geral, no período de maior pluviosidade da rede hidrográfica. Em geral, com exceção do Zn e Mn, os elementos traços ultrapassaram o valor máximo permitido, estabelecido pela legislação nacional (CONAMA). O submédio Rio São Francisco tem sofrido interferência da urbanização e industrialização, por isso, é preciso que, programas de conscientização sejam estabelecidos, para controlar e amenizar problemas futuros.Palavras-chave: elementos traços, industrialização, rio São Francisco, urbanização.

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“…The methods reported for the simultaneous determination of nickel and cobalt are AAS using FAAS 3-6 or ETAAS 7-10 , HPLC [11][12] with different techniques such as ion chromatography [13][14][15] , chelation ion chromatography 16,17 , reversed phase liquid chromatography [18][19][20][21][22] , ICP-AES 23,24 , NAA 25 and XRF 26,27 . Electroanalytical techniques [28][29][30] and flow systems with voltammetric 31 detection systems, polarographic 32 methods, gravimetric and colorimetric methods 33 , spectrophotomeric methods [34][35][36][37][38] .…”

Section: Introductionmentioning

confidence: 99%

Simultaneous Spectrophotometric Determination of Cobalt and Nickel by Partial Least Square Regression in Micellar Media

2007

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Diphenycarbazone has been used for the simultaneous determination of cobalt and nickel by partial least square regression method. DPC complexes of cobalt and nickel at pH 7-10 are of pink color, which are soluble in TX-100 micellar media. A partial least square multivariate calibration method for the analysis of binary mixtures of cobalt and nickel was developed. The total relative standard error for applying the PLS method was calculated. The accuracy and reproducibility of the determination method for various known amounts of Co(II) and Ni(II) in their binary mixtures were tested. The effects of diverse ions on the determination of cobalt and nickel to investigate the selectivity of the method were also studied. The proposed method was applied to the synthetic binary mixtures, alloys and pharmaceutical samples.

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Trace analysis of heavy metals in groundwater samples by ion chromatography with post-column reaction and ultraviolet–visible detection

Cited by 55 publications

References 24 publications

Evaluation of Matrix Effects of Polycarboxylic Acid Introduction in Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES)

Evaluation of Matrix Effects of Polycarboxylic Acid Introduction in Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES)

Seasonal study of concentration of heavy metals in waters from lower São Francisco River basin, Brazil

Simultaneous Spectrophotometric Determination of Cobalt and Nickel by Partial Least Square Regression in Micellar Media

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