"Z(MSM 223300004), Z(MSM6215712402)" . . . "Stoupalov\u00E1, Michaela" . "1" . "The use of SPME for determination of pesticides in water."@en . . "The use of SPME for determination of pesticides in water." . . "3"^^ . "[03CBCB3E317D]" . "Vyu\u017Eit\u00ED SPME pro stanoven\u00ED pesticid\u016F ve vod\u011B"@cs . "RIV/62157124:16270/05:00000140!RIV06-MSM-16270___" . "Vyu\u017Eit\u00ED SPME pro stanoven\u00ED pesticid\u016F ve vod\u011B"@cs . . "159-161" . "The objective of this paper was optimalization of solid phase microextraction (SPME) method, which is used for determination of the pesticides in water. The SPME method was investigated with diferent fibers, extraction time, extraction temperature and stirring of sample. Analytes were analysed by GC/MS. SPME conditions used for optimalization of head-space method were follows: 40 min exposition of PDMS (100 mm) fiber at 70 \u00B0C in head-space above 5 ml of water sample in vial. The same conditions wereused for direct SPME sampling except different extraction temperature - 40 \u00B0C and sample volume - 7,5 ml. The applicability of SPME methods was tested by measuring of repeatibility. The RSD values for head-space SPME ranged from 5 to 15 % (determined from a set of five replicates, level of contamination 0,06 mg/ml) and for direct SPME ranged from 4 to 13 % (detrmined from a set of four replicates, level of contamination 0,04 mg/ml)." . "Beklov\u00E1, Miroslava" . . . "0009-2770" . . . . . "Holadov\u00E1, Kate\u0159ina" . "3"^^ . . . "2"^^ . "CZ - \u010Cesk\u00E1 republika" . "Chemick\u00E9 listy" . "The objective of this paper was optimalization of solid phase microextraction (SPME) method, which is used for determination of the pesticides in water. The SPME method was investigated with diferent fibers, extraction time, extraction temperature and stirring of sample. Analytes were analysed by GC/MS. SPME conditions used for optimalization of head-space method were follows: 40 min exposition of PDMS (100 mm) fiber at 70 \u00B0C in head-space above 5 ml of water sample in vial. The same conditions wereused for direct SPME sampling except different extraction temperature - 40 \u00B0C and sample volume - 7,5 ml. The applicability of SPME methods was tested by measuring of repeatibility. The RSD values for head-space SPME ranged from 5 to 15 % (determined from a set of five replicates, level of contamination 0,06 mg/ml) and for direct SPME ranged from 4 to 13 % (detrmined from a set of four replicates, level of contamination 0,04 mg/ml)."@en . "RIV/62157124:16270/05:00000140" . . . . "99" . "548107" . "The use of SPME for determination of pesticides in water."@en . "The use of SPME for determination of pesticides in water." . "SPME; pesticides; water"@en . "Hlav\u00EDm t\u00E9matem tohoto p\u0159\u00EDsp\u011Bvku byla optimalizace metody mikroextrakce na tuhou f\u00E1zi (SPME) pro stanoven\u00ED pesticid\u016F ve vod\u011B. P\u0159i v\u00FDvoji SPME metody byly testov\u00E1ny r\u016Fzn\u00E9 stacion\u00E1rn\u00ED f\u00E1ze pou\u017Eit\u00FDch vl\u00E1ken, doba sorpce, teplota sorpce a m\u00EDch\u00E1n\u00ED vzorku. Analyty byly stanoveny pomoc\u00ED GC/MS. Optimalizovan\u00E1 head-space metoda m\u00E1 tuto podobu: sorpce 40 min na vl\u00E1kno PDMS (100 m) p\u0159i 70 \u00B0C z head-space prostoru nad 5 ml vzorku. Podobn\u011B byla vyvinuta metoda pro p\u0159\u00EDmou SPME, kter\u00E1 se od head-space metody li\u0161\u00ED teplotou p\u0159i sorpci: 40 \u00B0C, a objemem vzorku 7,5 ml. Pou\u017Eitelnost obou metod byla prov\u011B\u0159ena stanoven\u00EDm opakovatelnosti. RSD dosahuj\u00ED hodnot pro head-space: 5- 15 % (5 opakov\u00E1n\u00ED, hladina kontaminace 0,06 g/ml) a pro p\u0159\u00EDmou SPME: 4- 13% (4 opakov\u00E1n\u00ED, hladina kontaminace 0,04 g/ml)."@cs . . "16270" .