Technology Center of China Tobacco Hunan Industrial Co., Ltd., Changsha 410007, PR China; State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, PR China.
State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, PR China.
Talanta. 2015 Jan;131:499-504. doi: 10.1016/j.talanta.2014.08.018. Epub 2014 Aug 20.
The study of spatial distribution characteristics of the adsorbed compounds for absorbent materials has significant importance in understanding the behaviors of aerosols while they migrating in the absorbent materials. Herein, for the first time, desorption corona beam ionization-mass spectrometry (DCBI-MS) has proposed for direct in-situ analysis of adsorbed aerosol for absorbent materials. DCBI is a novel atmospheric pressure chemical ionization (APCI)-related technique developed by our group in recent years. It can facilitate accurately localizing sampling by forming a visible thin corona beam and avoid the risk of sample contamination and matrix interference compared with other similar techniques. The advantages of DCBI-MS allow rapid screening of the spatial distribution characteristics of the adsorbed compounds for absorbent materials. The distribution characteristic of phenol in cigarette filter tip filled with cellulose acetate fiber was studied as a model case for demonstrating the feasibility of the developed method. As a comparison, conventional HPLC was also used for the study of the distribution characteristic of phenol. The results revealed DCBI-MS had highly improved assay simplicity in spatial distribution characteristic analysis of phenol for the acetate fiber tip, therefore, exhibiting a great potential for convenient, rapid and cost-efficient analysis of the spatial distribution characteristic investigation of adsorbed compounds for adsorbent materials.
吸附化合物在吸收剂材料中的空间分布特征的研究对于理解气溶胶在吸收剂材料中迁移时的行为具有重要意义。本文首次提出了脱附电晕束电离-质谱（DCBI-MS）用于直接原位分析吸收剂材料中吸附的气溶胶。DCBI 是我们小组近年来开发的一种新颖的大气压化学电离（APCI）相关技术。与其他类似技术相比，它可以通过形成可见的薄电晕束来方便地进行准确的局部采样，并避免样品污染和基质干扰的风险。DCBI-MS 的优点允许快速筛选吸收剂材料中吸附化合物的空间分布特征。以醋酸纤维纤维填充的香烟过滤嘴中的苯酚分布特征为例，研究了该方法的可行性。作为比较，还使用了常规 HPLC 研究苯酚的分布特征。结果表明，在醋酸纤维尖端的苯酚空间分布特征分析中，DCBI-MS 具有更高的检测简单性，因此在吸附剂材料吸附化合物的空间分布特征研究的方便、快速和经济高效分析方面具有很大的潜力。
