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Statements

Subject Item
n2:RIV%2F60461373%3A22330%2F11%3A43892721%21RIV12-MSM-22330___
rdf:type
n4:Vysledek skos:Concept
dcterms:description
The present study documents development and validation of a novel approach for determination of 23 perfluorinated alkylated substances (PFASs) in food of animal origin represented by milk and fish. The list of target analytes comprises four classes of PFASs, both ionic and non-ionic: 11 perfluorocarboxylic acids (PFCAs), 4 perfluorosulphonic acids (PFSAs), 5 perfluorosulphonamides (FOSAs) and 3 perfluorophosphonic acids (PFPAs). Fast sample preparation procedure is based on an extraction of target analytes with acetonitrile (MeCN) and their transfer (supported by inorganic salts and acidification) into the organic phase. Removing of matrix co-extracts by a simple dispersive solid phase extraction (SPE) employing ENVI-Carb and C18 sorbents is followed by an efficient sample pre-concentration performed by acetonitrile evaporation and subsequent dilution of residue in a small volume of methanol (matrix equivalent in the final extracts was 16 and 8 g mL?1, for milk and fish respectively). Using modern instrumentation consisting of ultra-high performance liquid chromatography (UHPLC) hyphenated with a tandem mass spectrometer (MS/MS), limits of quantification (LOQs) as low as 0.001-0.006 ?g kg?1 for milk and 0.002-0.013 ?g kg?1 for fish can be achieved. Under these conditions, a wide spectrum of PFASs, including minor representatives, can be determined which enables collecting data required for human exposure studies. The pilot study employing the new method for examination of milk and canned fish samples was realized. Whereas in majority of canned fish products a wide spectrum of PFCAs, perfluorooctanesulphonic acid (PFOS) and perfluoro-1-octanesulphonamide (PFOSA) was detected, only in a few milk samples very low concentrations (LOQ levels) of PFOS and perfluorooctansulphonic acid (PFDS) were found. The present study documents development and validation of a novel approach for determination of 23 perfluorinated alkylated substances (PFASs) in food of animal origin represented by milk and fish. The list of target analytes comprises four classes of PFASs, both ionic and non-ionic: 11 perfluorocarboxylic acids (PFCAs), 4 perfluorosulphonic acids (PFSAs), 5 perfluorosulphonamides (FOSAs) and 3 perfluorophosphonic acids (PFPAs). Fast sample preparation procedure is based on an extraction of target analytes with acetonitrile (MeCN) and their transfer (supported by inorganic salts and acidification) into the organic phase. Removing of matrix co-extracts by a simple dispersive solid phase extraction (SPE) employing ENVI-Carb and C18 sorbents is followed by an efficient sample pre-concentration performed by acetonitrile evaporation and subsequent dilution of residue in a small volume of methanol (matrix equivalent in the final extracts was 16 and 8 g mL?1, for milk and fish respectively). Using modern instrumentation consisting of ultra-high performance liquid chromatography (UHPLC) hyphenated with a tandem mass spectrometer (MS/MS), limits of quantification (LOQs) as low as 0.001-0.006 ?g kg?1 for milk and 0.002-0.013 ?g kg?1 for fish can be achieved. Under these conditions, a wide spectrum of PFASs, including minor representatives, can be determined which enables collecting data required for human exposure studies. The pilot study employing the new method for examination of milk and canned fish samples was realized. Whereas in majority of canned fish products a wide spectrum of PFCAs, perfluorooctanesulphonic acid (PFOS) and perfluoro-1-octanesulphonamide (PFOSA) was detected, only in a few milk samples very low concentrations (LOQ levels) of PFOS and perfluorooctansulphonic acid (PFDS) were found.
dcterms:title
Simple, high throughput ultra-high performance liquid chromatography/tandem mass spectrometry trace analysis of perfluorinated alkylated substances in food of animal origin: Milk and fish. Simple, high throughput ultra-high performance liquid chromatography/tandem mass spectrometry trace analysis of perfluorinated alkylated substances in food of animal origin: Milk and fish.
skos:prefLabel
Simple, high throughput ultra-high performance liquid chromatography/tandem mass spectrometry trace analysis of perfluorinated alkylated substances in food of animal origin: Milk and fish. Simple, high throughput ultra-high performance liquid chromatography/tandem mass spectrometry trace analysis of perfluorinated alkylated substances in food of animal origin: Milk and fish.
skos:notation
RIV/60461373:22330/11:43892721!RIV12-MSM-22330___
n4:predkladatel
n5:orjk%3A22330
n3:aktivita
n9:Z n9:P
n3:aktivity
P(7E09075), P(7F09101), Z(MSM6046137305)
n3:cisloPeriodika
28
n3:dodaniDat
n6:2012
n3:domaciTvurceVysledku
n15:7989253 n15:8580588 n15:5805406 n15:1283243
n3:druhVysledku
n14:J
n3:duvernostUdaju
n7:S
n3:entitaPredkladatele
n12:predkladatel
n3:idSjednocenehoVysledku
229293
n3:idVysledku
RIV/60461373:22330/11:43892721
n3:jazykVysledku
n19:eng
n3:klicovaSlova
Milk; Fish; Food; LC-MS/MS; Perfluorinated alkylated substances
n3:klicoveSlovo
n13:Milk n13:LC-MS%2FMS n13:Perfluorinated%20alkylated%20substances n13:Food n13:Fish
n3:kodStatuVydavatele
NL - Nizozemsko
n3:kontrolniKodProRIV
[3BECA841C932]
n3:nazevZdroje
Journal of Chromatography A
n3:obor
n16:GM
n3:pocetDomacichTvurcuVysledku
4
n3:pocetTvurcuVysledku
4
n3:projekt
n21:7E09075 n21:7F09101
n3:rokUplatneniVysledku
n6:2011
n3:svazekPeriodika
1218
n3:tvurceVysledku
Hajšlová, Jana Pulkrabová, Jana Lacina, Ondřej Hrádková, Petra
n3:wos
000292718800007
n3:zamer
n17:MSM6046137305
s:issn
0021-9673
s:numberOfPages
10
n20:doi
10.1016/j.chroma.2011.04.061
n18:organizacniJednotka
22330