Determination of heavy metals in soils and sediments by microwave-assisted digestion and inductively coupled plasma optical emission spectrometry analysis

Bettinelli, M.; Beone, Gian Maria; Spezia, S.; Baffi, Claudio

doi:10.1016/s0003-2670(00)01123-5

Cited by 239 publications

(109 citation statements)

References 5 publications

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“…In order to solve such problems, various acid mixtures were developed to dissolve solid environmental samples. [15][16][17][18] The analysis of heavy metals in solid samples is one of the most dynamically developing scientific areas.…”

Section: Introductionmentioning

confidence: 99%

Comparison of Different Digestion Methods for Total Decomposition of Siliceous and Organic Environmental Samples

2001

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Section: Introductionmentioning

confidence: 99%

Comparison of Different Digestion Methods for Total Decomposition of Siliceous and Organic Environmental Samples

2001

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“…To extract elements from soil into solution, sample digestion in different acid mixtures composed of HF, HCl, HNO3, HClO4, and H2O2 is applied. [3][4][5][6] Complex matrix composition of soils often complicates trace element determinations due to spectral interferences. To exclude spectral overlapping, Picoloto et al 7 developed a method for As, Cd, Hg and Pb volatilization from soil using microwave-induced combustion.…”

Section: Introductionmentioning

confidence: 99%

Solid Sampling in Analysis of Soils by Two-jet Plasma Atomic Emission Spectrometry

Zaksas

Veryaskin

2017

ANAL. SCI.

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The possibility of direct analysis of soils by two-jet plasma atomic emission spectrometry was investigated using certified reference materials of black earth, grey desert and red soils. It was shown that As, B, Cd, Cu, Hg, P, and V could be determined after a 2-fold, and Be, Co, Cr, Ga, Nb, Pb, and Zn-after a 10-fold dilution of the samples by a spectroscopic buffer using calibration samples based on graphite powder. The strongest matrix effects were revealed for red soil having the highest Al and Fe concentration, which led to the overstated concentrations of some elements. The overstating factor depended on analyte concentration and was no more than 2. A clear advantage of the suggested technique over existing methods is the simple sample preparation process, which requires no reagents except a spectroscopic buffer, and possibility of using the same calibration samples for analysis of different soils.

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“…It also allows a shorter digestion time and good recoveries. 1 However, due to the infancy of the technique, the procedures are numerous and varied in both the reagents used and the microwave conditions. A good dissolution procedure is said to depend on the choice of the reagent and a specific temperature profile.…”

Section: Introductionmentioning

confidence: 99%

“…2 Several studies used different acid combinations (HF, HCl, HNO3, HClO4, and H2O2) in the digestion of sediments or soil for total heavy metal analyses. 1,[3][4][5] This often renders incomparable and unverifiable heavy metals data produced in different laboratories. For geochemical analyses of marine sediments, Loring and Rantala recommended the use of an aqua regia-HF combination for removing total metals in sediments.…”

Section: Introductionmentioning

confidence: 99%

Comparison of the Acid Combinations in Microwave-assisted Digestion of Marine Sediments for Heavy Metal Analyses

Sakamoto

2005

ANAL. SCI.

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Sediments as a tool for monitoring contamination by heavy metals in the environment has long been considered. It is therefore a necessity to produce reliable data for such purposes. Microwave-assisted acid dissolution has proved to be a suitable method for digesting complex matrices, such as sediments. However, due to the infancy of the technique, the procedures are numerous and varied in both the reagents used and microwave conditions. In this study, the efficiency of two recommended acid mixtures, a HNO3-HF mixture and an aqua regia-HF mixture, under the same microwave digestion conditions were compared using certified reference materials. It was observed that the HNO3-HF mixture showed better efficiency than the aqua regia-HF mixture in most of the heavy metals analyzed in all certified reference materials used.

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Determination of heavy metals in soils and sediments by microwave-assisted digestion and inductively coupled plasma optical emission spectrometry analysis

Cited by 239 publications

References 5 publications

Comparison of Different Digestion Methods for Total Decomposition of Siliceous and Organic Environmental Samples

Comparison of Different Digestion Methods for Total Decomposition of Siliceous and Organic Environmental Samples

Solid Sampling in Analysis of Soils by Two-jet Plasma Atomic Emission Spectrometry

Comparison of the Acid Combinations in Microwave-assisted Digestion of Marine Sediments for Heavy Metal Analyses

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