Microwave oven samle dissolution for the analysis of environmental and biological materials

Bettinelli, M.; Baroni, U.; Pastorelli, N.

doi:10.1016/s0003-2670(00)84604-8

Cited by 94 publications

(39 citation statements)

References 11 publications

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“…The pH and metal concentrations were determined in the percolates. The Total amounts of cations in the untreated and in the percolated organic material were determined by digesting 0.25 g of the dried (70°C) and ground (0.5 mm) samples with a 4:1 (v/v) mixture of concentrated HNO3 and HC1 in a microwave oven (Bettinelli et al, 1989). Total K, Na, Ca, Mg and Mn were determined by atomic absorption/emission spectrophotometry.…”

Section: Methodsmentioning

confidence: 99%

Metal distribution across different pools in the organic layer of a forest under acid deposition and its consequences for the metal dynamics

Wessel

Tietema

1995

Plant Soil

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Metal distribution across disfferent pools in the organic layer of a forest under acid deposition and its consequences for the metal dynamics Wessel, W.W.; Tietema, A. Disclaimer/Complaints regulationsIf you believe that digital publication of certain material infringes any of your rights or (privacy) interests, please let the Library know, stating your reasons. In case of a legitimate complaint, the Library will make the material inaccessible and/or remove it from the website. Please Ask the Library: http://uba.uva.nl/en/contact, or a letter to: Library of the University of Amsterdam, Secretariat, Singel 425, 1012 WP Amsterdam, The Netherlands. You will be contacted as soon as possible. Acid atmospheric deposition can cause losses of metal nutrients from the organic layer of a soil. The size of these losses depend on the sizes of the different pools in which the metals are present, as these pools differ in mobility. The metal pools in an organic soil layer of a Douglas fir forest in the Netherlands subjected to acid deposition were determined by means of extractions and percolations. Na was mainly dissolved and exchangeably adsorbed, K dissolved, exchangeably adsorbed and present in the soil microbial biomass, Ca exchangeably adsorbed and present in organic precipitates, Mg exchangeably adsorbed and present in the soil biomass, and Mn exchangeably adsorbed and present in inorganic precipitates. The main part of the metals was exchangeably adsorbed. The adsorption affinity increased in the order Na < K < Mg < Mn ~ Ca. The vertical distribution of the metals in the organic layer showed that all metals were continuously lost from the organic layer. The differences between the metals in retention and vertical distribution patterns were in agreement with their differences in deposition rate, pool distribution, and exchange affinity. Since the metals were mainly exchangeably adsorbed, and the acidifying cations dominated the atmospheric deposition, acid deposition and cation exchange must be processes that strongly affect the losses of metals from this organic soil layer.

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Section: Methodsmentioning

confidence: 99%

Metal distribution across different pools in the organic layer of a forest under acid deposition and its consequences for the metal dynamics

Wessel

Tietema

1995

Plant Soil

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“…For each digestion step, a blank was prepared with the same amount of acids. [17][18][19][20] The digestion programme for microwave system was: 3 min at 250 W, 2 min at 0 W, 5 min at 250 W, 5 min at 500 W, 2 min at 0 W and 5 min at 500 W. After digestion, samples were diluted to 50 mL with high purity water. The resulting solutions were analyzed by ICP-AES technique for Cd, Cr, Cu, Fe, Mn, Ni, Pb, V and Zn determination.…”

Section: Pm10 and Metals Determinationmentioning

confidence: 99%

Heavy Metals in PM10 Sampled in the Urban Area of Campi Salentina (Apulia, Southern Italy)

Buccolieri

Cardellicchio

et al. 2006

Annali di Chimica

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The following paper shows results of PM10 level and Cd, Cr, Cu, Fe, Mn, Ni, Pb, V and Zn concentrations present in this fraction for filters collected in the urban area of Campi Salentina (Apulia, Southern Italy) in 2004 in order to inquire into air quality. PM10 and lead concentrations did not exceed the standard values sanctioned by Italian Legislature with average values equal to 36.54 +/- 14.57 microg x m(-3) and 9.19 +/- 5.24 ng x m(-3) respectively. Significant correlations have been found between the pairs Fe-Mn, Ni-V, Cr-Ni and Cd-Cr. This suggests that these metals have a similar pollution source probably due to metallurgical activity. Multivariate statistical analysis showed that it is possible to distinguish the PM10 samples collected in sampling periods with different meteorological conditions. Indeed, metals concentration increases for samples characterized by scarce rains or by winds prevailing from North or North-West and is reduced due to different meteorological conditions, although there are some exceptions.

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“…An HCl/HNO /HF treatment in a PTFE bomb, using microwave heating, was applied for several reference materials, like coals and coal fly ash, rocks, sewage sludges and sediments and biological samples, like tomato leaves, pine needles and bovine liver. Nearly 25 elements in the dissolved samples were determined by ETAAS and ICP-AES [21]. The determination of As, Cd, Pb, Sb, Se and Tl was carried out using the STPF technique using Zeeman background correction.…”

Section: Applications Of Microwave-assisted Digestion Proceduresmentioning

confidence: 99%

Literature study of microwave-assisted digestion using electrothermal atomic absorption spectrometry

Chakraborty

Das

Cervera

et al. 1996

Fresenius J Anal Chem

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The literature on the use of microwave-assisted digestion procedures for subsequent sample analysis by means of electrothermal atomic absorption spectrometry (ETAAS) is reviewed. The literature survey reveals that this digestion technique has been applied mainly for biological materials. The elements most extensively determined by this method are cadmium and lead followed by copper, chromium, nickel and iron. The microwave digestion conditions, ETAAS furnace programmes and analytical details of the developed methodologies have been carefully revised.

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Microwave oven samle dissolution for the analysis of environmental and biological materials

Cited by 94 publications

References 11 publications

Metal distribution across different pools in the organic layer of a forest under acid deposition and its consequences for the metal dynamics

Metal distribution across different pools in the organic layer of a forest under acid deposition and its consequences for the metal dynamics

Heavy Metals in PM10 Sampled in the Urban Area of Campi Salentina (Apulia, Southern Italy)

Literature study of microwave-assisted digestion using electrothermal atomic absorption spectrometry

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