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| 顶空气相色谱-质谱法测定橡胶防老剂4020中的甲基异丁基酮和苯胺 |
| Determination of Methyl Isobutyl Ketone and Aniline in Antioxidant 4020 by Head Space Gas Chromatography-Mass Spectrometry |
| Received:August 23, 2018 Revised:August 23, 2018 |
| DOI： |
| 中文关键词: 防老剂4020 甲基异丁基酮 苯胺 顶空气相色谱-质谱法 |
| 英文关键词: antioxidant 4020 methyl isobutyl ketone aniline head space gas chromatography-mass spectrometry |
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| 中文摘要: |
| 通过优化不同的平衡条件，建立了顶空气相色谱-质谱法测定防老剂4020中甲基异丁基酮和苯胺的方法。结果表明：在称样量为0.5 g、顶空自动进样器的平衡温度为160 ℃、平衡时间为90 min的条件下，甲基异丁基酮和苯胺质量浓度线性关系良好，相关因数分别为0.995和0.989；方法检出限均为1 mg·kg-1；回收率为90%～110%，相对标准偏差为4.4%～8.0%。 |
| 英文摘要: |
| The method for the determination of methyl isobutyl ketone and aniline in antioxidant 4020 by head space gas chromatography-mass spectrometry was established through optimizing different equilibrium conditions.The results showed that when the amount of samples was 0.5 g，the equilibrium temperature of head space autosampler was 160 ℃ and the balance time was 90 min，good linearity in mass concentration range of methyl isobutyl ketone and aniline coule be obtained，the relevant factor was 0.995 and 0.989，respectively.The detection limit of the method was 1 mg·kg-1，the recovery was 90%～110%，and the relative standard deviation was 4.4%～8.0%. |
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