气相色谱-质谱联用法测定卷烟主流烟气气相物中挥发性有机化合物

来源 :中国烟草科学 | 被引量 : 0次 | 上传用户:skynini83
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
建立了气相色谱-质谱联用(GC-MS)同时快速检测卷烟主流烟气中5种挥发性有机化合物(1,3-丁二烯,异戊二烯,丙烯腈,苯和甲苯)的分析方法。主流烟气气相物中的挥发性有机化合物被含有D6-苯内标的冷甲醇吸收,并用GC-MS在选择离子模式下进行分析。方法的最低检出限(LOD)和最低定量限(LOQ)分别为0.01~0.81μg/支和0.04~2.73μg/支,加标回收率为92.3%~98.5%,精密度为1.95%~9.21%。本方法检测限低,重复性和重现性明显优于以前报道的方法。应用此方法考察了38种国内外卷
其他文献
A nuclear miniPET camera was constructed with 2 bucket rings, each having 8 BGO detector modules for brain scanning. After calibration of the camera, an experim
本文总结了老年呼吸道感染100例的治疗情况,其中50例采用庆大霉素加地塞米松作雾化吸入配合抗生素静脉点滴,另外50例单纯应用抗生素静脉点滴,二者相比,前者能迅速控制症状,缩短治疗时间,疗
为进一步挖掘贵州烤烟种质资源潜力,给烤烟新品种选育创造条件,对贵州省烟草科学研究所保存的302份烤烟种质资源主要性状的遗传多样性进行了分析和比较。结果表明,4个形态性状、
Purpose: Nasal lymphoma created dosimetric challenges in radiotherapy due to the complex anatomical structures. This study was to evaluate the efficacy and toxi
Purpose: In radiation therapy, gold nanoparticles (GNPs) are regarded as a promising radiosensitizer candidate. Several studies have revealed a dose enhancement
以烤烟为供试作物,研究了不同磷肥用量对烤烟化学成分和香气物质含量的影响。结果表明:磷能降低烟叶中淀粉含量,缩小上下部位间烟碱差异,改善烟叶的氮碱比,显著提高苯甲醇、氧化异
The aim of this study was to investigate the organ doses of patients undergoing computed tomography (CT) examination using the wide bore General Electric (GE)
Proton therapy represents the most advanced form of radiotherapy currently available. Hepato-cellular carcinoma (HCC) has been extensively treated with proton t
Purpose: This study provides a simple protocol for validation of the gamma passing rates and to identify the optimum values of % dose and mm criteria for dose d
Purpose: To evaluate planning quality and dosimetric differences of clinically deliverable Intensity-modulated Radiation Therapy lung plans generated from Tomot