. . . "Fast isolation of hydrophobic organic environmental contaminants from exposed semipermeable membrane devices (SPMDs) prior to GC analysis"@en . . . "RIV/60461373:22330/05:00014777" . . . . . . "NL - Nizozemsko" . . "Bergqvist, P. A." . . "Semipermeable membrane devices (SPMD) represent a passive sampling technology that is becoming widely used for monitoring of surface waters pollution. While %22classic%22 procedures employ dialysis to recover target compounds from exposed SPMDs, in the present study analyteswere isolated from cut membrane together with sequestering medium (triolein) using hexane as an extraction solvent. This approach allowed us to reduce the time needed for accomplishment of isolation step from 48 h to only 1 h. Automated gel permeation chromatography (GPC)clean-up is employed in the following step to separate triolein from analytes fraction. Musk compounds (MCs), polychlorinated biphenyls (PCBs), brominated flame retardants (BFRs) and several other persistent organochlorine compounds (OCs) were determined in the respectivefraction by GC method employing selective detectors (MSD, ECD). As shown in a series of analyses of SPMDs deployed in various aquatic ecosystems, high recoveries and good repeatability of res" . "1" . "0021-9673" . . "Journal of Chromatography A" . . "\u0160etkov\u00E1, Lucie" . . "Suchan, Petr" . "[D2A659920486]" . . . . "Fast isolation of hydrophobic organic environmental contaminants from exposed semipermeable membrane devices (SPMDs) prior to GC analysis" . "Semipermeable membrane devices (SPMD) represent a passive sampling technology that is becoming widely used for monitoring of surface waters pollution. While %22classic%22 procedures employ dialysis to recover target compounds from exposed SPMDs, in the present study analyteswere isolated from cut membrane together with sequestering medium (triolein) using hexane as an extraction solvent. This approach allowed us to reduce the time needed for accomplishment of isolation step from 48 h to only 1 h. Automated gel permeation chromatography (GPC)clean-up is employed in the following step to separate triolein from analytes fraction. Musk compounds (MCs), polychlorinated biphenyls (PCBs), brominated flame retardants (BFRs) and several other persistent organochlorine compounds (OCs) were determined in the respectivefraction by GC method employing selective detectors (MSD, ECD). As shown in a series of analyses of SPMDs deployed in various aquatic ecosystems, high recoveries and good repeatability of res"@en . "Fast isolation of hydrophobic organic environmental contaminants from exposed semipermeable membrane devices (SPMDs) prior to GC analysis"@en . "Haj\u0161lov\u00E1, Jana" . "1092" . . "5"^^ . "Kocourek, Vladim\u00EDr" . . "Kazda, Radek" . . "Semipermeable membrane devices; SPMDs; Sampling; Aquatic ecosystem; Musk compounds; Polychlorinated biphenyls; Brominated flame retardants; Polybrominated diphenyl ethers; Hexabromocyclododecane; Organochlorine pesticides; Octachlorostyrene"@en . "521412" . . "P(OK 377), Z(MSM 223300004)" . "12"^^ . "170-181" . . "Semipermeabiln\u00ED membr\u00E1nov\u00E1 za\u0159\u00EDzen\u00ED p\u0159edstavuj\u00ED technologii pasivn\u00EDho vzorkov\u00E1n\u00ED, kter\u00E1 se st\u00E1le v\u00EDce pou\u017E\u00EDv\u00E1 pro monitorov\u00E1n\u00ED zne\u010Di\u0161t\u011Bn\u00ED povrchov\u00FDch vod. Zat\u00EDmco klasick\u00E9 postupy vyu\u017E\u00EDvaj\u00ED pro z\u00EDsk\u00E1n\u00ED c\u00EDlov\u00FDch l\u00E1tek z SPMD membr\u00E1ny dial\u00FDzu, v t\u00E9to studii byly analyty izolov\u00E1ny z roz\u0159\u00EDznut\u00E9 membr\u00E1ny spolu se sekvestra\u010Dn\u00EDm m\u00E9diem (trioleinem) extrakc\u00ED hexanem. Tento p\u0159\u00EDstup umo\u017Enil zkr\u00E1cen\u00ED izola\u010Dn\u00EDho kroku ze 48 h na 1 h. Dal\u0161\u00EDm nezbytn\u00FDm krokem je automatizovan\u00E1 gelov\u00E1 permea\u010Dn\u00ED chromatografie (GPC), kterou se odd\u011Bl\u00ED analyty od trioleinu. Syntetick\u00E9 analogy pi\u017Ema (MC), polychlorovan\u00E9 bifenyly (PCB) bromovan\u00E9 retard\u00E1tory ho\u0159en\u00ED (BFR) a mnoho dal\u0161\u00EDch organochlorov\u00FDch slou\u010Denin (OC) byly stanoveny ve frakci nepol\u00E1rn\u00EDch analyt\u016F. Anal\u00FDzy SPMD membr\u00E1n exponovan\u00FDch v nejr\u016Fzn\u011Bj\u0161\u00EDch akvatick\u00FDch ekosyst\u00E9mech prok\u00E1zaly dobrou v\u00FDt\u011B\u017Enost a opakovatelnost z\u00EDsk\u00E1van\u00FDch v\u00FDsledk\u016F. Informace o pr\u016Fm\u011Brn\u00E9m zne\u010Di\u0161t\u011Bn\u00ED ve sledovan\u00E9 oblasti m\u016F\u017Ee b\u00FDt p\u0159i zaveden\u00ED tohoto postupu dostupn\u00E1 prakticky tent\u00FD\u017E den, kdy se ukon\u010D\u00ED vzo"@cs . "22330" . . . . "Fast isolation of hydrophobic organic environmental contaminants from exposed semipermeable membrane devices (SPMDs) prior to GC analysis" . "Rychl\u00E1 izolace hydrofobn\u00EDch organick\u00FDch kontaminant\u016F \u017Eivotn\u00EDho prost\u0159ed\u00ED z exponovan\u00FDch semipermeabiln\u00EDch membr\u00E1nov\u00FDch za\u0159\u00EDzen\u00ED (SPMD) p\u0159ed GC anal\u00FDzou"@cs . "6"^^ . "RIV/60461373:22330/05:00014777!RIV06-MSM-22330___" . . "Rychl\u00E1 izolace hydrofobn\u00EDch organick\u00FDch kontaminant\u016F \u017Eivotn\u00EDho prost\u0159ed\u00ED z exponovan\u00FDch semipermeabiln\u00EDch membr\u00E1nov\u00FDch za\u0159\u00EDzen\u00ED (SPMD) p\u0159ed GC anal\u00FDzou"@cs . . .