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| 傅里叶红外光谱法和裂解气相色谱-质谱法解析长碳链聚酰胺结构的研究 |
| Structural Analysis of Long-Chain Polyamides by Fourier Transform Infrared Spectroscopy and Pyrolysis Gas Chromatography-Mass Spectrometry |
| Received:July 31, 2025 Revised:August 12, 2025 |
| DOI：10.12137/j.issn.2095-5448.2026.04.0228 |
| 中文关键词: 傅里叶红外光谱法 裂解气相色谱-质谱法 聚酰胺 结构分析 |
| 英文关键词: FTIR Py-GC-MS polyamide structural analysis |
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| 中文摘要: |
| 采用傅里叶红外吸收光谱（FTIR）法和裂解气相色谱-质谱（Py-GC-MS）法对某未知样品结构进行分析。结果表明：FTIR法通过官能团确定样品为聚酰胺（PA），但不能区分PA的具体结构类型；通过Py-GC-MS法对PA样品进行分析，并对比PA样品与数据库检索匹配度较高的2种标准品的总离子流色谱，确定PA样品为PA612；抽提法前处理可以有效去除样品中配合剂的干扰，并初步判定该PA样品中含有N-丁基苯磺酰胺类增塑剂。 |
| 英文摘要: |
| The structure of an unknown sample was tested and analyzed using Fourier transform infrared spectroscopy（FTIR） and pyrolysis gas chromatography-mass spectrometry（Py-GC-MS）.The results showed that FTIR could identify the sample as polyamide（PA） based on functional groups but could not distinguish the specific structural type.Py-GC-MS analysis of the PA sample，along with comparative of the total ion chromatograms between the PA sample and two standard reference compounds with high matching degrees from the database，confirmed that the sample was PA612.Post-treatment such as extraction could effectively eliminated the interference of additives，preliminarily indicating the presence of N-butylbenzene sulfonamide plasticizers in the PA sample. |
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