• Home
  • Search Results
  • Preparation and application of sol-gel acrylate and methacrylate solid-phase microextraction fibres for gas chromatographic analysis of organoarsenic compounds.

Preparation and application of sol-gel acrylate and methacrylate solid-phase microextraction fibres for gas chromatographic analysis of organoarsenic compounds.

Analytica chimica acta (2014-07-09)
Stanisław Popiel, Jakub Nawała, Krzysztof Czupryński
ABSTRACT

Novel solid-phase microextraction (SPME) fibres containing methyl, ethyl, butyl acrylate and methacrylate were first prepared by a sol-gel technique and investigated for determination of selected organoarsenic compounds (lewisite, methyldichloroarsine, phenyldichloroarsine, diphenylchloroarsine and triphenylarsine) from water samples. The influence of sorption and desorption temperature and time for extraction efficiency were examined. The best new fibre coatings (methyl acrylate (MA), methyl methacrylate (MMA) and combination of methyl acrylate and methacrylate (MA/MMA)) for analysis of organoarsenic compounds were selected and compared with commercial fibres. The distribution coefficients Kfs were determined for the best novel fibres and for absorption commercial fibres. The highest Kfs value were obtained for MA/MMA and MMA fibres and were respectively 9458 and 6561 for lewisite and 6458 and 5884 for triphenylarsine. The limit of detection and quantification were determined for the three laboratory obtained fibres (MA, MMA and MA/MMA). LODs for tested fibres, at a signal-to-noise of 3, were 0.03-0.3 ng mL(-1). LOQs for selected coatings, at signal-to-noise of 10, were 0.1-0.8 ng mL(-1). The relative standard deviations (RSD) for all measurements were 4.3-6.5% (n=9) and relative errors were 2.5-5%. The laboratory obtained fibres were used for environmental analysis of pore water samples from the Baltic Sea.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Methyl methacrylate, contains ≤30 ppm MEHQ as inhibitor, 99%
Sigma-Aldrich
1-Butanol, anhydrous, 99.8%
Sigma-Aldrich
Ethylenediaminetetraacetic acid disodium salt solution, for molecular biology, 0.5 M in H2O, DNase, RNase, NICKase and protease, none detected
Sigma-Aldrich
1-Butanol, 99.9%
Sigma-Aldrich
Divinylbenzene, technical grade, 80%
Sigma-Aldrich
1-Butanol, for molecular biology, ≥99%
Sigma-Aldrich
1-Butanol, ACS reagent, ≥99.4%
Sigma-Aldrich
Methyl acrylate, 99%, contains ≤100 ppm monomethyl ether hydroquinone as inhibitor
Sigma-Aldrich
Butyl acrylate, ≥99%, contains 10-60 ppm monomethyl ether hydroquinone as inhibitor
Sigma-Aldrich
Tetraethylene glycol, 99%
Sigma-Aldrich
1-Octanol, anhydrous, ≥99%
Sigma-Aldrich
1-Butanol, suitable for HPLC, ≥99.7%
Sigma-Aldrich
Ethyl acrylate, contains 10-20 ppm MEHQ as inhibitor, 99%
Sigma-Aldrich
1-Octanol, ACS reagent, ≥99%
Sigma-Aldrich
Butyl methacrylate, 99%, contains monomethyl ether hydroquinone as inhibitor
Sigma-Aldrich
1-Butanol, puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., ≥99.5% (GC)
Supelco
1-Butanol, analytical standard
Sigma-Aldrich
1-Octanol, suitable for HPLC, ≥99%
Sigma-Aldrich
Butyl alcohol, natural, ≥99.5%, FCC, FG
Sigma-Aldrich
Ethyl methacrylate, contains 15-20 ppm monomethyl ether hydroquinone as inhibitor, 99%
Sigma-Aldrich
Methyl methacrylate, 99%, stabilized
Supelco
1-Octanol, analytical standard
Supelco
Ethyl acrylate, analytical standard
Sigma-Aldrich
Dibutyl sulfide, ≥98.0% (GC)
Supelco
1-Butanol, Pharmaceutical Secondary Standard; Certified Reference Material
Sigma-Aldrich
1-Octanol, ReagentPlus®, 99%
Sigma-Aldrich
Hexamethyldisiloxane, viscosity 0.65 cSt (25 °C)
Sigma-Aldrich
Poly(dimethylsiloxane), viscosity 1.0 cSt (25 °C)
Sigma-Aldrich
Ethyl acrylate, ≥99.5%, stabilized
Sigma-Aldrich
Triphenylarsine, 97%