您的位置: 专家智库 > >

国家自然科学基金(40975080)

作品数:5 被引量:17H指数:3
相关作者:陶玲张为俊高晓明杨西斌赵卫雄更多>>
相关机构:中国科学院中国科学技术大学厦门大学更多>>
发文基金:国家自然科学基金中国科学院知识创新工程重要方向项目中国科学院知识创新工程更多>>
相关领域:化学工程环境科学与工程理学农业科学更多>>

文献类型

  • 5篇期刊文章
  • 1篇会议论文

领域

  • 3篇化学工程
  • 3篇环境科学与工...
  • 3篇理学
  • 1篇农业科学

主题

  • 2篇IONIZA...
  • 1篇电离
  • 1篇烟雾箱
  • 1篇乙苯
  • 1篇紫外
  • 1篇挥发
  • 1篇挥发性有机
  • 1篇挥发性有机化...
  • 1篇光电离
  • 1篇光学
  • 1篇OH
  • 1篇PHOTO
  • 1篇PHOTOI...
  • 1篇PHOTOO...
  • 1篇REACTI...
  • 1篇TOLUEN...
  • 1篇VUV
  • 1篇CL
  • 1篇ETHYLB...
  • 1篇EXPERI...

机构

  • 3篇中国科学院
  • 1篇厦门大学
  • 1篇中国科学技术...
  • 1篇中国科学院大...

作者

  • 3篇张为俊
  • 2篇陶玲
  • 1篇刘付轶
  • 1篇王振亚
  • 1篇单晓斌
  • 1篇赵卫雄
  • 1篇郝立庆
  • 1篇孔蕊弘
  • 1篇杨西斌
  • 1篇高晓明
  • 1篇盛六四
  • 1篇黄明强

传媒

  • 3篇Journa...
  • 1篇高等学校化学...
  • 1篇物理学报

年份

  • 3篇2012
  • 3篇2010
5 条 记 录,以下是 1-6
排序方式:
一种新型光学多通池系统应用于烟雾箱内挥发性有机化合物探测被引量:7
2010年
介绍了Chernin型多通池的原理、设计及应用,该系统稳定性好,调节简单,光程在3—330m的范围内可调.通过对NO2的痕量探测,验证了该系统的稳定性及可靠性,在37m的吸收光程内,NO2的探测极限达19.1μg/m3.同时,利用该系统对烟雾箱内的邻、间、对-二甲苯,甲苯进行了痕量探测,在36m的吸收光程内,探测极限分别达到42.6,15.1,9.9和19.7μg/m3,该系统可以满足烟雾箱内挥发性有机化合物测量的需要,结果可用于研究二次有机气溶胶的生长机理和大气中污染物的光化学反应过程.
杨西斌赵卫雄陶玲高晓明张为俊
关键词:挥发性有机化合物
A VUV photoionization mass spectrometric study on the OH-initiated photooxidation of isoprene with synchrotron radiation被引量:1
2012年
The gas-phase organic compounds resulting from OH-initiated photooxidation of isoprene have been investigated on-line by VUV photoiortization mass spectrometry based on synchrotron radiation for the first time. The photoionization efficiency curves of the corresponding gaseous products as well as the chosen standards have been deduced by gating the interested peaks in the photoionization mass spectra while scanning the photon energy simultaneously, which permits the identification of the pivotal gaseous products of the photooxidation of isoprene, such as formaldehyde (10.84 eV), formic acid (11.38 eV), acetone (9.68 eV), glyoxal (9.84 eV), acetic acid (10.75 eV), methacrolein (9.91 eV), and methyl vinyl ketone (9.66 eV). Proposed reaction mechanisms leading to the formation of these key products were discussed, which were completely consistent with the previous works of different groups. The capability of synchrotron radiation photoionization mass spectrometry to directly identify the chemical composition of the gaseous products in a simulation chamber has been demonstrated, and its potential application in related studies of atmospheric oxidation of ambient volatile organic compounds is anticipated.
Gang PanChangjin HuMingqiang HuangZhenya WangYue ChengZhi LiuWeixiong ZhaoWeijun ZhangJun ChenFuyi LiuXiaobin ShanLiusi Sheng
关键词:ISOPRENEPHOTOOXIDATION
宽带腔增强吸收光谱技术应用于NO2高灵敏度探测及气溶胶消光系数测量研究
本文介绍了基于氙灯和LED的非相干宽带腔增强吸收光谱(IBBCEAS)系统,并将其应用于NO2的高灵敏度探测及气溶胶消光系数的测量。基于氙灯的IBBCEAS系统工作于520-560nm波段,使用反射率为0.99的透镜,可...
董美丽赵卫雄顾学军胡长进黄腾黄伟张为俊
关键词:大气探测
文献传递
Experimental study of photooxidation products of ethylbenzene被引量:6
2010年
Smog chamber experiments were performed to investigate the composition of products formed from photooxidation of aromatic hydrocarbon ethylbenzene. Vacuum ultraviolet photoionization mass spectrometer and aerosol time-of-flight mass spectrometer were used to measure the products in the gas and particle phases in real-time. Experimental results demonstrated that ethylphenol, methylglyoxal, phenol, benzaldehyde, and 2-ethylfurane were the predominant photooxidation products in both the gas and particle phases. However, there were some differences between detected gas phase products and those of particle phase, for example, 2-ethylfurane, ethylglyoxylic acid, nitroethylbenzene, 3,4-dioxopentanal and ethyl-nitrophenol were only existing in the particle-phase. The possible reaction mechanisms leading to these products were also discussed and proposed.
Mingqiang HuangWeijun ZhangLiqing HaoZhenya WangLi FangRuihong KongXiaobin ShanFuyi LiuLiusi Sheng
乙苯光电离的实验研究被引量:1
2010年
利用真空紫外同步辐射和反射式飞行时间质谱研究了乙苯分子的光电离,通过测量母体分子的光电离质谱(PIMS)以及母体离子和主要碎片离子的光电离效率曲线(PIEs),确定了乙苯分子的电离能IE(C8H1+0)=(8.66±0.02)eV,主要碎片离子C7H7+和C6H6+的出现能分别为(10.81±0.02)和(10.99±0.02)eV;利用经验公式计算出产生碎片离子C7H7+和C6H6+需要的解离能(Ed)分别为(2.15±0.04)和(2.33±0.04)eV.结合相关的热化学参数,推算出C8H1+0,C7H7+和C6H6+的标准生成焓分别为865.5,927.2和1037.9kJ/mol.为进一步研究乙苯的大气光氧化反应机理提供了参考.
陶玲黄明强郝立庆张为俊王振亚孔蕊弘单晓斌刘付轶盛六四
关键词:乙苯光电离
Size distribution and chemical composition of secondary organic aerosol formed from Cl-initiated oxidation of toluene被引量:3
2012年
Secondary organic aerosol (SOA) formed from Cl-initiated oxidation of toluene was investigated in a home-made smog chamber. The size distribution and chemical composition of SOA particles were measured using aerodynamic particle sizer spectrometer and the aerosol laser time-of-flight mass spectrometer (ALTOFMS), respectively. According to a large number of single aerosol diameter and mass spectra, the size distribution and chemical composition of SOA were obtained statistically. Experimental results showed that SOA particles created by Cl-initiated oxidation of toluene is predominantly in the form of fine particles, which have diameters less than 2.5 μm (i.e., PM2.5), and glyoxal, benzaldehyde, benzyl alcohol, benzoquinone, benzoic acid, benzyl hydroperoxide and benzyl methyl nitrate are the major products components in the SOA. The possible reaction mechanisms leading to these products are also proposed.
Mingqiang HuangWeijun ZhangXuejun GuChangjin HuWeixiong ZhaoZhenya WangLi Fang
共1页<1>
聚类工具0