Determination of oleamide and erucamide in polyethylene films by pressurised fluid extraction and gas chromatography

  1. Garrido-López, A. 1
  2. Esquiu, V. 1
  3. Tena, M.T. 1
  1. 1 Universidad de La Rioja
    info

    Universidad de La Rioja

    Logroño, España

    ROR https://ror.org/0553yr311

Aldizkaria:
Journal of Chromatography A

ISSN: 0021-9673

Argitalpen urtea: 2006

Alea: 1124

Zenbakia: 1-2

Orrialdeak: 51-56

Mota: Artikulua

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DOI: 10.1016/J.CHROMA.2006.04.086 PMID: 16716333 SCOPUS: 2-s2.0-33746539608 WoS: WOS:000239706200008 GOOGLE SCHOLAR

Beste argitalpen batzuk: Journal of Chromatography A

Lotura duten proiektuak

INOVACIONES ANALITICAS EN LA DETERMINACION DIRECTA DE VOLATILES Y EN LA MIGRACION DE COMPUESTOS ORGANICOS EN SOLIDOS

2004/00090/001

Laburpena

A pressurized fluid extraction (PFE) and gas chromatography-flame ionization detection (GC-FID) method is proposed to determine the slip agents in polyethylene (PE) films. The study of PFE variables was performed using a fractional factorial design (FFD) for screening and a central composite design (CCD) for optimizing the main variables obtained from the Pareto charts. The variables that were studied include temperature, static time, percentage of cyclohexane and the number of extraction cycles. The final condition selected was pure isopropanol (two times) at 105 °C for 16 min. The recovery of spiked oleamide and erucamide was around 100%. The repeatability of the method was between 9.6% for oleamide and 8% for erucamide, expressed as relative standard deviation. Finally, the method was applied to determine oleamide and erucamide in several polyethylene films and the results were statistically equal to those obtained by pyrolysis and gas-phase chemiluminescence (CL). © 2006 Elsevier B.V. All rights reserved.