| 杨运成,柯伟强,高少东.气相色谱-质谱法测定橡胶材料中的五氯硫酚含量[J].橡胶科技,2024,22(11):0654-0656. |
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| 气相色谱-质谱法测定橡胶材料中的五氯硫酚含量 |
| Determination of Pentachlorothiophenol Content in Rubber Materials by Gas Chromatography-Mass Spectrometry |
| 投稿时间：2023-07-25 修订日期：2023-08-16 |
| DOI：10.12137/j.issn.2095-5448.2024.11.0654 |
| 中文关键词: 五氯硫酚 气相色谱-质谱法 橡胶材料 乙酰化 |
| 英文关键词: pentachlorothiophenol GC-MS rubber material acetylation |
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| 中文摘要: |
| 建立采用气相色谱-质谱法测定橡胶材料中五氯硫酚含量的分析方法。试样经甲醇超声萃取，在碳酸钾溶液中加入乙酸酐进行乙酰化后，用正己烷提取。采用气相色谱-质谱仪选择离子测定，外标法定量。试验结果表明，该方法具有准确、稳定、灵敏度高的特点，其检出限＜0.5 mg·kg-1，加标回收率达到84%～92%，可以作为常规检测方法应用于实际产品检测中。 |
| 英文摘要: |
| An analytical method using gas chromatography-mass spectrometry（GC-MS） to determine the content of pentachlorothiophenol in rubber materials was established.The sample was ultrasonically extracted with methanol，acetic anhydride was added to the potassium carbonate solution for acetylation，and then extracted with n-hexane.The gas chromatography-mass spectrometer was used with ion determination and external standard method for quantification.The test results showed that，the method was accurate，stable，and high sensitive，the detection limit was less than 0.5 mg·kg-1，and the recovery rate was 84%～92%，which could be used as a routine analytical method in actual product detection. |
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