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Statements

Subject Item
n2:RIV%2F70883521%3A28610%2F13%3A43869707%21RIV14-MSM-28610___
rdf:type
n9:Vysledek skos:Concept
rdfs:seeAlso
http://link.springer.com/article/10.2478%2Fs11532-013-0249-9
dcterms:description
Application of economically important and time saving pretreatment for the screening element mobility evaluation of contaminated sediments is presented. Ultrasonically-assisted single-step extraction (USAE) was carried out by EDTA solution. The extraction time of USAE was optimized and obtained results were compared with results estimated by conventional (EDTA extraction) and by sequential extraction (modified BCR protocol). The original three step BCR protocol was modified by addition of the first step (water leaching) and the fifth step, total digestion of sediment residue (acid mixture with HF). Zn, Cu and Pb have been determined in extracts by ICP-OES. Good conformity of the ultrasonically-extracted element contents and sum of contents, extracted during first three steps (water-soluble, acid-extractable, reducible – i.e., the most mobile fractions) of sequential extraction, was found. The sono-extraction reduced operating time of the first three steps of sequential extraction from 48 h to 15 min. Thus, USAE can serve as a rapid screening assessment of the mobile and potentially mobile element portions in sediments and other similar solid state environmental media. Analytical quality control was realized by comparison of the sums of element contents obtained at individual (five) extraction steps. Total element contents were also determined by an independent method (XRF). Application of economically important and time saving pretreatment for the screening element mobility evaluation of contaminated sediments is presented. Ultrasonically-assisted single-step extraction (USAE) was carried out by EDTA solution. The extraction time of USAE was optimized and obtained results were compared with results estimated by conventional (EDTA extraction) and by sequential extraction (modified BCR protocol). The original three step BCR protocol was modified by addition of the first step (water leaching) and the fifth step, total digestion of sediment residue (acid mixture with HF). Zn, Cu and Pb have been determined in extracts by ICP-OES. Good conformity of the ultrasonically-extracted element contents and sum of contents, extracted during first three steps (water-soluble, acid-extractable, reducible – i.e., the most mobile fractions) of sequential extraction, was found. The sono-extraction reduced operating time of the first three steps of sequential extraction from 48 h to 15 min. Thus, USAE can serve as a rapid screening assessment of the mobile and potentially mobile element portions in sediments and other similar solid state environmental media. Analytical quality control was realized by comparison of the sums of element contents obtained at individual (five) extraction steps. Total element contents were also determined by an independent method (XRF).
dcterms:title
Sono-extraction as a pretreatment approach for the screening evaluation of element mobility of sediment samples Sono-extraction as a pretreatment approach for the screening evaluation of element mobility of sediment samples
skos:prefLabel
Sono-extraction as a pretreatment approach for the screening evaluation of element mobility of sediment samples Sono-extraction as a pretreatment approach for the screening evaluation of element mobility of sediment samples
skos:notation
RIV/70883521:28610/13:43869707!RIV14-MSM-28610___
n9:predkladatel
n10:orjk%3A28610
n3:aktivita
n17:I
n3:aktivity
I
n3:cisloPeriodika
7
n3:dodaniDat
n5:2014
n3:domaciTvurceVysledku
n18:1836595
n3:druhVysledku
n16:J
n3:duvernostUdaju
n7:S
n3:entitaPredkladatele
n15:predkladatel
n3:idSjednocenehoVysledku
106386
n3:idVysledku
RIV/70883521:28610/13:43869707
n3:jazykVysledku
n14:eng
n3:klicovaSlova
Environmental analysis, Extraction, Ultrasound, Screening of element mobility
n3:klicoveSlovo
n13:Screening%20of%20element%20mobility n13:Environmental%20analysis n13:Ultrasound n13:Extraction
n3:kodStatuVydavatele
AT - Rakouská republika
n3:kontrolniKodProRIV
[9C96E3B37619]
n3:nazevZdroje
Central European Journal of Chemistry
n3:obor
n4:CF
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
8
n3:rokUplatneniVysledku
n5:2013
n3:svazekPeriodika
11
n3:tvurceVysledku
Blašková, Jana Nováková, Jarmila Mackových, Daniela Lapčík, Lubomír Bazeľ, Yaroslav Poperníková, Zuzana Vojteková, Viera Abusenaina, Ashraf M.M.
n3:wos
000318180300016
s:issn
1895-1066
s:numberOfPages
12
n20:doi
10.2478/s11532-013-0249-9
n12:organizacniJednotka
28610