Publikace detail

Determination of alkylphenols and alkylphenol ethoxylates in water using magnetically modified chromatographic column packing for extraction

Rok: 2008

Druh publikace: článek ve sborníku

Název zdroje: Scientific papers of the university of Pardubice

Strana od-do: nestránkováno

Tituly:

Jazyk	Název	Abstrakt	Klíčová slova
cze	Stanovení alkylfenolu a ethoxylenovaných alkylfenolů z vody extrakcí pomocí magneticky modifikovaných chromatografických sorbentů	Plynově chromatografické stanovení APs a NP1EO a NP2EO z vody po předchozí extrakci magnetickou tuhou fází, MSPE.
eng	Determination of alkylphenols and alkylphenol ethoxylates in water using magnetically modified chromatographic column packing for extraction	A rapid and simple magnetic solid phase extraction (MSPE) was used to pre-concentrate alkylphenols (APs) and nonylphenol mono- and di-ethoxylates (NP1EO and NP2EO) from water samples before capilary gas chromatography (CGC) determination. AP, NP1EO and NP2EO are biodegradation products ethoxylated (NPnEO) surfuctants. MSPE was tested for extraction of these pollutants from water. This method was compared with liquid - liquid extraction (LLE). Different types of sorbents and column packing such as Chezacarb B, S, Tenax GC, TA, GR, Porapak S and Chromosorb 101 - 106 were magnetically modified and used for the preconcentration and isolation of target compounds. The four extraction parametrs were optimized. Water samples from the reservoirs Rozkos, river Labe and from water phase after biodegradation tests of oxyethylenated nonylphenols were analysed. detection limits of the method were between 0.65 - 1 ug.l-1.	CGC MSPE APs, NPnEO

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