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Statements

Subject Item
n2:RIV%2F60461373%3A22330%2F13%3A43896659%21RIV14-MSM-22330___
rdf:type
n10:Vysledek skos:Concept
rdfs:seeAlso
http://ac.els-cdn.com/S0956713513001400/1-s2.0-S0956713513001400-main.pdf?_tid=68899bee-9b08-11e3-a1be-00000aacb362&acdnat=1392994796_db00f70d161c2d157ba8f81a1ce62ec4
dcterms:description
A fast and simple solid-phase extraction (SPE) method followed by comprehensive two-dimensional gas chromatography coupled to time-of-flight mass spectrometry (GC x GC?TOFMS) has been developed for analysis of 15 + 1 carcinogenic polycyclic aromatic hydrocarbons (PAHs) in vegetable oils. Of three critically assessed sample preparation approaches ? (i) gel permeation chromatography (GPC), (ii) GPC followed by silica based SPE, and (iii) SPE employing PAHs-dedicated molecularly imprinted polymers (MIPs), the latter one was selected as the best option. Recoveries of the overall analytical procedure ranged from 70 to 99%, with repeatabilities in the range of 2?11%. Limits of quantitation (LOQs) ranging for individual PAHs from 0.1 to 0.3 ?g kg?1, were fairly below the maximum level 2 ?g kg?1 established for the PAHs representative, benzo[a]pyrene (BaP), by EU Legislation for this commodity. Within the mini-survey in which the new method was employed for examination of 35 samples of various kinds of vegetable oils collected at the Czech market, the highest PAH4 levels, i.e. the sum of BaP, benz[a]anthracene (BaA), benzo[b]fluoranthene (BbFA) and chrysene (CHR) were found in sea buckthorn (708 ?g kg?1) followed by rapeseed oil (99.8 ?g kg?1). Altogether 8 samples from 35 examined vegetable oils exceeded the maximum limit 2 ?g kg?1 for BaP and 10 samples exceeded 10 ?g kg?1 set for PAH4 which is fixed by Commission Regulation (EU) no 835/2011 for oils. A fast and simple solid-phase extraction (SPE) method followed by comprehensive two-dimensional gas chromatography coupled to time-of-flight mass spectrometry (GC x GC?TOFMS) has been developed for analysis of 15 + 1 carcinogenic polycyclic aromatic hydrocarbons (PAHs) in vegetable oils. Of three critically assessed sample preparation approaches ? (i) gel permeation chromatography (GPC), (ii) GPC followed by silica based SPE, and (iii) SPE employing PAHs-dedicated molecularly imprinted polymers (MIPs), the latter one was selected as the best option. Recoveries of the overall analytical procedure ranged from 70 to 99%, with repeatabilities in the range of 2?11%. Limits of quantitation (LOQs) ranging for individual PAHs from 0.1 to 0.3 ?g kg?1, were fairly below the maximum level 2 ?g kg?1 established for the PAHs representative, benzo[a]pyrene (BaP), by EU Legislation for this commodity. Within the mini-survey in which the new method was employed for examination of 35 samples of various kinds of vegetable oils collected at the Czech market, the highest PAH4 levels, i.e. the sum of BaP, benz[a]anthracene (BaA), benzo[b]fluoranthene (BbFA) and chrysene (CHR) were found in sea buckthorn (708 ?g kg?1) followed by rapeseed oil (99.8 ?g kg?1). Altogether 8 samples from 35 examined vegetable oils exceeded the maximum limit 2 ?g kg?1 for BaP and 10 samples exceeded 10 ?g kg?1 set for PAH4 which is fixed by Commission Regulation (EU) no 835/2011 for oils.
dcterms:title
Application of solid phase extraction and two-dimensional gas chromatography coupled with time-of-flight mass spectrometry for fast analysis of polycyclic aromatic hydrocarbons in vegetable oils Application of solid phase extraction and two-dimensional gas chromatography coupled with time-of-flight mass spectrometry for fast analysis of polycyclic aromatic hydrocarbons in vegetable oils
skos:prefLabel
Application of solid phase extraction and two-dimensional gas chromatography coupled with time-of-flight mass spectrometry for fast analysis of polycyclic aromatic hydrocarbons in vegetable oils Application of solid phase extraction and two-dimensional gas chromatography coupled with time-of-flight mass spectrometry for fast analysis of polycyclic aromatic hydrocarbons in vegetable oils
skos:notation
RIV/60461373:22330/13:43896659!RIV14-MSM-22330___
n10:predkladatel
n14:orjk%3A22330
n3:aktivita
n13:I n13:Z
n3:aktivity
I, Z(MSM6046137305)
n3:cisloPeriodika
2
n3:dodaniDat
n4:2014
n3:domaciTvurceVysledku
n6:5729998 n6:9219943 n6:8580588 n6:5249546 n6:1283243 n6:1776304
n3:druhVysledku
n9:J
n3:duvernostUdaju
n7:S
n3:entitaPredkladatele
n19:predkladatel
n3:idSjednocenehoVysledku
61811
n3:idVysledku
RIV/60461373:22330/13:43896659
n3:jazykVysledku
n20:eng
n3:klicovaSlova
GCxGC?TOFMS; Molecularly imprinted polymers (MIP); Solid-phase extraction (SPE); Vegetable oil; Polycyclic aromatic hydrocarbons (PAHs)
n3:klicoveSlovo
n8:GCxGC%3FTOFMS n8:Vegetable%20oil n8:Molecularly%20imprinted%20polymers%20%28MIP%29 n8:Polycyclic%20aromatic%20hydrocarbons%20%28PAHs%29 n8:Solid-phase%20extraction%20%28SPE%29
n3:kodStatuVydavatele
BE - Belgické království
n3:kontrolniKodProRIV
[406A96A5F3AC]
n3:nazevZdroje
Food control
n3:obor
n16:GM
n3:pocetDomacichTvurcuVysledku
6
n3:pocetTvurcuVysledku
6
n3:rokUplatneniVysledku
n4:2013
n3:svazekPeriodika
33
n3:tvurceVysledku
Tomaniová, Monika Hajšlová, Jana Kalachová, Kamila Pulkrabová, Jana Drábová, Lucie Kocourek, Vladimír
n3:wos
000320286900026
n3:zamer
n15:MSM6046137305
s:issn
0956-7135
s:numberOfPages
9
n21:doi
10.1016/j.foodcont.2013.03.018
n11:organizacniJednotka
22330