气相色谱-质谱联用法测定水基胶中邻苯二甲酸酯含量的方法改进
Improvement of gas chromatography-mass spectrometry method for determination of phthalates in water-based adhesive
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摘要: 为了提高检测效率,同时又避免仪器的损伤,采用测试水基胶中苯系物含量的毛细管色谱柱建立了测定水基胶中邻苯二甲酸酯含量的改进方法.实验结果表明,该法重复测定的变异系数小于6%,平均回收率为88.06%~104.26%,具有较好的重现性和准确性.该方法的检测限和定量限范围分别为0.002~0.027 μg/mL和0.007~0.089 μg/mL.对比检测表明,使用本法与使用行业标准法的测试结果之间不存在显著性差异,表明该法可适用于水基胶中邻苯二甲酸酯含量的测定.
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关键词:
- 邻苯二甲酸酯 /
- 水基胶 /
- 气相色谱-质谱联用法
Abstract: In order to raise efficiency and avoid equipment damage,the same capillary column of the benzene series in water-based adhesive was used to establish the method of determinating phthalates content in water-based adhesive.The results showed that the method had good reproducibility and accuracy,the variation coefficient was less than 6% and the average recovery ratio was 88.06%~104.26%.The range of detection limit and quantification limit were 0.002~0.027 μg/mL and 0.007~0.089 μg/mL respectively.There was not significant difference between the method and industry standard method,and the method could be used to determine the phthalates content in water-based adhesive. -
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