A study of the direct determination of Cd, Cr, Cu, Pb and Zn in certified reference materials of soils by solid sampling electrothermal atomic absorption spectrometry

Török, Péter; Žemberyová, Mária

doi:10.1016/j.sab.2010.12.005

Cited by 29 publications

(7 citation statements)

References 29 publications

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“…Solid sampling-electrothermal atomic absorption spectrometry (SS-ETAAS) is a feasible and attractive alternative to both conventional AAS methodologies using sample decomposition and slurry ETAAS [8,9]. The solid sampling high-resolution continuum source graphite furnace atomic absorption spectrometry (SS HR-CS GFAAS) [10] circumvented limitations related to the stability of slurries in conventional line source ETAAS.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of solid sampling for determination of Mo, Ni, Co, and V in soil by high-resolution continuum source graphite furnace atomic absorption spectrometry

Babos

Barros

Ferreira

et al. 2017

Spectrochimica Acta Part B: Atomic Spectroscopy

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New methods are proposed for the determination of Mo, Ni, Co, and V in soils using high-resolution continuum source graphite furnace atomic absorption spectrometry with direct solid sampling. Cobalt and V were simultaneously determined, and different analytical lines of Ni and V were monitored to adjust sensitivity for each sample. Accuracy was checked by means of soil certified reference materials, and also by flame atomic absorption spectrometry as comparative technique. The results for Mo, Ni, Co, and V found by proposed methods were in agreement with certified values and with those obtained by the comparative technique at 95% confidence level. The concentrations found in different soil samples were in the ranges 0.19-1.84 mg kg −1 (Mo), 9.2-22.7 mg kg −1 (Ni), 1.1-10.7 mg kg −1 (Co), and 35.6-426.1 mg kg −1 (V). The relative standard deviations were in the ranges 3.2-10% (Mo), 2.8-9.8% (Ni), 4.0-9.2% (Co), and 1.2-8.0% (V). The limits of quantification for Mo, Ni, Co, and V were 0.027, 0.071, 0.15, and 1.43 ng, respectively.

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Section: Introductionmentioning

confidence: 99%

Evaluation of solid sampling for determination of Mo, Ni, Co, and V in soil by high-resolution continuum source graphite furnace atomic absorption spectrometry

Babos

Barros

Ferreira

et al. 2017

Spectrochimica Acta Part B: Atomic Spectroscopy

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show abstract

“…Indeed, apart from interferences during the measurements, risks of sample contamination, losses of the analyte, and the presence of substances which are difficult to be dissolved among others, should be carefully considered in the preparation of the samples [5,6].…”

Section: Introductionmentioning

confidence: 99%

The influence of pyrolysis and matrix modifiers on determination of Cr and Pb in sediment samples by GFAAS

Mohadi

Broekaert²

2016

sje

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Abstract:The Influence of pyrolysis and matrix modifiers on determination of Cr and Pb in sediment samples using graphite furnace atomic absorption spectrometry has been investigated. The sediment samples including three certified reference materials (CRMs) are reported. Analyses were performed using microwave assisted dissolution. The matrix modifiers Mg(NO3)2, Pd+Mg(NO3)2 and NH4H2PO4were shown to be optimazed. The recovery for Cr and Pb in CRMs in the case of sample dissolution was found to be between 81 to 91% for Cr and 94 to 98% for Pb of the certified values, respectively. Keywords: Sediment, Pyrolysis, Matrix modifiers, Cr, PbAbstrak (Indonesian): Pengaruh pirolisis dan matriks pengubah pada penentuan Cr dan Pb dalam sampel sedimen menggunakan tungku grafit spektroskopi serapan atom telah diteliti. Sampel sedimen termasuk tiga bahan referensi bersertifikat (CRMs) dilaporkan dianalisis dengan menggunakan bantuan microwave ekstraktor. Matriks pengubah Mg(NO3)2, Pd+Mg(NO3)2 dan NH4H2PO4 telah digunakan dan menghasilkan nilai temu balik untuk Cr dan Pb dalam CRMs ditemukan antara 81-91% untuk Cr dan 94-98 % untuk Pb dari nilai sertifikat masing-masing.

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“…Determinations of cadmium in soils have been carried out using analytical techniques, such as atomic absorption spectrometry (AAS), [4][5][6][7][8] inductively coupled plasma atomic emission spectrometry (ICP-AES) 9,10 and inductively coupled plasma mass spectrometry (ICP-MS) 10,11 after the extraction of cadmium with acid solutions, such as hydrochloric acid, nitric acid and aqua regia. [4][5][6][9][10][11]13 Although these methods are highly sensitive, they need expensive instrumentations, and involve time-consuming procedures.…”

Section: Introductionmentioning

confidence: 99%

Selective Spectrophotometric Determination of Trace Amounts of Cadmium in Soil and Sediment Samples Using a Green Aqueous Biphasic Extraction

et al. 2016

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A green extraction spectrophotometric method was presented for the determination of trace amounts of cadmium in soil and sediment samples. This method is based on the selective extraction of cadmium as its iodide complex by aqueous biphasic extraction composed of polyethylene glycol (PEG) and sodium sulfate, and a subsequent sensitive determination by spectrophotometry using 2-(5-bromo-2-pyridylazo)-5-[N-n-propyl-N-(3-sulfopropyl)amino]phenol. This extraction method is simple and environmentally benign, since the organic solvents used for the traditional liquid-liquid extractions are replaced by the non-toxic polymer and inorganic salt. Cadmium can be selectively extracted from soil and sediment samples into the PEG-rich upper phase by an aqueous biphasic system containing potassium iodide and sulfuric acid. The proposed method was applied to the determination of cadmium in certified reference materials for soil and river sediment. The obtained results were in good agreement with the certified values.

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A study of the direct determination of Cd, Cr, Cu, Pb and Zn in certified reference materials of soils by solid sampling electrothermal atomic absorption spectrometry

Cited by 29 publications

References 29 publications

Evaluation of solid sampling for determination of Mo, Ni, Co, and V in soil by high-resolution continuum source graphite furnace atomic absorption spectrometry

Evaluation of solid sampling for determination of Mo, Ni, Co, and V in soil by high-resolution continuum source graphite furnace atomic absorption spectrometry

The influence of pyrolysis and matrix modifiers on determination of Cr and Pb in sediment samples by GFAAS

Selective Spectrophotometric Determination of Trace Amounts of Cadmium in Soil and Sediment Samples Using a Green Aqueous Biphasic Extraction

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