Multiple Headspace Extraction for the Quantitative Determination of Residual Monomer and Solvents in Polystyrene Pellets Using the Agilent 7697A Headspace Sampler Authors
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چکیده
A multiple headspace extraction (MHE) method using the Agilent 7697A Headspace Sampler coupled with an Agilent 7890A Gas Chromatograph has been developed for quantitative determination of residual monomers and solvents in polystyrene pellets. The polystyrene pellets were freeze-ground before analysis by the MHE procedure. The optimization of headspace temperature and time for sample equilibration are discussed in detail. The repeatability was generally better than 2% RSD for each analyte in the same sample batch and the reproducibility was better than 5.6% RSD for different sample batches.
منابع مشابه
Multiple Headspace Extraction for the Quantitative Determination of Residual Monomer and Solvents in Polystyrene Pellets Using the Agilent 7697A
A multiple headspace extraction (MHE) method using the Agilent 7697A Headspace Sampler coupled with an Agilent 7890A Gas Chromatograph has been developed for quantitative determination of residual monomers and solvents in polystyrene pellets. The polystyrene pellets were freeze-ground before analysis by the MHE procedure. The optimization of headspace temperature and time for sample equilibrati...
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