从液体到气溶:一种创新的HPLC方法揭示了电子烟的尼古丁盐动态
Shulei Han1,2, Lili Cui1,2, Qiong Fang1,2
1China National Tobacco Quality Supervision & Test Center, Key Laboratory of Tobacco Biological Effects, Zhengzhou, 450001, China.
Analytical and bioanalytical chemistry
|March 3, 2026
概括
研究人员开发了一种新的HPLC-DAD方法来分析电子液体和气溶中的尼古丁盐. 尼古丁酸是发现的最常见的盐,在气溶中释放的行为各不相同.
科学领域:
- 分析化学 分析化学
- 环境科学 环境科学
- 材料科学 是一种材料科学.
背景情况:
- 尼古丁盐增强了电子液体的感觉特性,增加了它们的使用.
- 需要有效的方法来量化电子烟产品中的多种尼古丁盐.
研究的目的:
- 开发和验证一种新的高性能液体色谱与二极管阵列检测 (HPLC-DAD) 方法.
- 为了同时量化电子液体和气溶中的尼古丁和六种有机酸.
- 为了确定流行的尼古丁盐,并分析它们在气溶中的释放行为.
主要方法:
- 开发一种新的HPLC-DAD方法,用于同时分析.
- 优化色谱和提取参数的优化.
- 验证该方法的线性,检测极限和恢复.
主要成果:
- 该方法表现出极好的线性 (R2>0.9999),低检测极限 (0.1-3.0μg/mL) 和高恢复率 (96.6-105.9%).
- 对60种商业电子液体的分析确定了尼古丁酸盐,尼古丁乳酸盐和尼古丁酸盐.
- 尼古丁酸是最常见的盐,作为25种产品中唯一的盐.
结论:
- 经过验证的HPLC-DAD方法为尼古丁盐分析提供了简单,强大,准确和快速的解决方案.
- 观察到,在气溶化过程中,从电子液体中释放出尼古丁盐的差异.
- 这些发现解释了在商业电子烟配方中选择性地使用特定的尼古丁盐.
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