摘要
为解决现有卷烟主流烟气气相成分分析方法的捕集效果较差、灵敏度和通量较低等问题,基于低温捕集和吸附剂捕集原理,设计了一种串联冷阱捕集装置。该装置由两个冷阱串联而成,其中一级冷阱为-21℃冰盐浴,二级冷阱为-78℃干冰/异丙醇体系,回旋管和XAD-2吸附管分别位于两级冷阱中。采用该装置对卷烟主流烟气气相成分进行了捕集,并结合气相色谱-质谱（GC/MS）进行了检测。结果表明：1该捕集方法的抽吸流量图与标准抽吸流量图接近。2采用该方法可较完全地捕集卷烟主流烟气气相成分,能定性出134种成分。3方法的精密度较好,112个目标分析物的RSD在10%以下。4方法的工作曲线线性良好（R2〉0.99）,准确度高（回收率为80%~120%）。5参比卷烟1R5F和3R4F的测试结果与文献报道值较为相符。该方法适用于分析卷烟主流烟气中的气相成分。
To improve the collection efficiency, sensitivity and throughput of existing analysis methods, a new trapping system based on low temperature and adsorbent trap was developed by combining two consecutive cold traps with GC/MS detection for high-throughput analysis of gas phase components in mainstream cigarette smoke. The system consisted of two consecutive cold traps, with the first cold trap being a-21 ℃ ice-salt bath and the second cold trap being a-78 ℃ dry ice/isopropanol trap. In addition, gyrotron and XAD-2 sorbent tube were embedded inside the two consecutive cold traps. The results obtained showed that： 1） The puff profile obtained with the cryo-trap system was close to the standard puff profile. 2） Most interested gas phase components were completely trapped by this method and a total of 134 components were identified. 3） The method featured a good precision： the relative standard deviations（RSDs） of the 112 identified components were under 10%. 4） The method presented a good linearity for the working calibration equations（R20.99） and high accuracy（all average recoveries ranged from 80% to 120%）. 5） The test results for two Kentucky reference cigarettes（1R5F and 3R4F） with the developed method agreed well with the reported values. This method is suitable for analyzing the gas phase components of mainstream cigarette smoke.
出处
《烟草科技》
EI
CAS
CSCD
北大核心
2016年第3期52-61,共10页
Tobacco Science & Technology
基金
国家自然科学基金青年基金项目"炭基新型固相微萃取及烟气多环芳烃类有害成分分析"(21205140)
