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用GC-MS同时确定气溶中的三种冷却剂的方法
Tinghao Chen1, Chenfeng Hua1, Chengjie Ma1
1Key Laboratory of Tobacco Chemistry, Zhengzhou Tobacco Research Institute of China National Tobacco Corporation (CNTC), Zhengzhou, China.
Frontiers in chemistry
|November 17, 2025
概括
一种新的气体染色体质谱法准确地量化了气溶中的薄荷醇等冷却剂. 大多数冷却剂凝结成颗粒,在电子烟气溶的气相中发现的度较低.
科学领域:
- 分析化学 分析化学
- 感官科学 感官科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 冷却剂激活冷敏受体 (TRPM8,TRPA1),提供一个冷却的感觉.
- 这些化合物被用于各种行业,包括食品,个人护理,制药和烟草.
- 了解气溶中的冷却液行为对于产品开发和安全至关重要.
研究的目的:
- 开发和验证一种气色谱-质谱法 (GC-MS) 方法,用于在气溶样本中量化薄荷醇,WS-3和WS-23.
- 为了确定这些冷却剂在电子烟喷雾剂的气体和颗粒相之间的分布.
- 提供可靠的分析方法来评估气溶中的冷却剂暴露.
主要方法:
- 建立了一个GC-MS方法,用于对三种冷却剂进行定量分析:薄荷醇,WS-3和WS-23.
- 气溶样本是从实验室配制的电子液体中使用电子蒸汽装置生成的.
- 分析验证包括线性,检测极限 (LOD),量化极限 (LOQ),相对标准偏差 (RSD) 和恢复率评估.
主要成果:
- 开发的GC-MS方法表现出极好的线性 (R2 ≥0.9994) 并满足所有分析验证要求 (LOD,LOQ,RSD,恢复).
- 在气溶的气体和粒子阶段检测到冷却剂.
- 由于气溶凝结,冷却剂度在颗粒阶段与气相相比显著更高,气相比例因化合物而异.
结论:
- 经过验证的GC-MS方法适用于分析商业气溶样本中的冷却剂.
- 这些发现为研究气溶中冷却剂的感官感知提供了可靠的分析基础.
- 这项研究为气溶产品中的冷却剂的应用和评估提供了精确的指导.
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