顶空-气相色谱法测定聚磷酸酯阻燃剂EPPE中环氧乙烷的残留量
Determination of ethylene oxide residue in polyphosphate ester flame retardant EPPE by headspace gas chromatography
The direct determination of ethylene oxide residue in polyphosphate ester flame retardant EPPE is successfully achieved by using headspace gas chromatography technology.The samples are dissolved in water in headspace vials,and headspace gas is injected.HP-INNOWAX quartz capillary column (30 m×0.53 mm×1 μm) is used for effective separation of the components to be measured,and a hydrogen flame ionization detector (FID) is employed for the detection.Results show that this method presents a good linear relationship for the mass of ethylene oxide in the range of 0-100.0 μg,with a linear correlation coefficient of 0.999 9.The relative standard deviation (RSD) is between 1.22% and 2.02%,and the recovery rates at different addition levels are between 97.1% and 100.7%.The detection limit is 0.00003%,and the quantification limit is 0.0001%.This method can meet the requirements for the analysis and detection of residual ethylene oxide content in EPPE.
顶空-气相色谱法 / 残留量 / 环氧乙烷 / 聚磷酸酯阻燃剂EPPE
headspace gas chromatography / residue / ethylene oxide / polyphosphate ester flame retardant EPPE
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