Ambient Production of Abundant Water Radical Cations and Characterization of Their Reaction with Ben

来源 :2018年中国质谱学术大会 | 被引量 : 0次 | 上传用户:kingsun555
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
  Water radical cations are known to play a crucial role in atmospheric science due to their high reactivity hydroxyl radicals and hydrated electrons production [1-4].
其他文献
Traditional degradation methods for N-nitrosamines are either confined with acid solution1,2 or required for additional chemical reagents3 to guarantee high reaction efficiency.
Imaging of cholesterol and other metabolites simultaneously by ambient mass spectrometry will greatly benefit biological studies,however,it still remains challenging.
质谱是识别物质的有力工具,也被用于电化学反应的过程监测,然而采用质谱真正实现对电化学反应的实时、在线监测的技术还鲜有报导。课题组在现有滴喷雾离子源(Droplet Spray Ionization,DSI)[1]的基础上,开发了一种简单、有效的新型电化学-质谱联用技术,实现了对电化学反应过程的实时、在线分析。
The rapid analysis and accurate identification of bacteria have always been crucial issues in many fields,including clinical diagnosis,biotechnology and food safety[1;2].
Mass Spectrometry with soft Photo-Ionisation(PIMS)1 enables the direct detection of trace molecules in complex organic vapours as well as in pyrolysis or combustion off-gases.
碳同位素被广泛应用于示踪地质和环境过程。碳同位素组成通常用同位素比质谱仪(IRMS)分析,其具有高的分析精度[1]。近年来,SIMS 和nanoSIMS 被用来分析地质样品(如碳酸盐、金刚石、石墨、有机质等)的碳同位素组成,相对传统分析,其具有高的空间分辨率[2,3]。
Fatty acid esters of hydroxy fatty acids(FAHFAs)are a new class of lipid mediators with promising anti-diabetic and anti-inflammatory properties [1-2].
人体新陈代谢的部分产物经由血液运送至肺部,在肺泡内通过气体交换出现在呼出气体中。呼出气中含有近千种痕量挥发性有机代谢物(VOMs),如酮、醛、醇、烃及含硫化合物等,这些VOMs 反映了机体的代谢和病理状况,其中一些物质甚至可作为疾病的生物标记物。
尿液作为一种可非侵入式采集、易于获取的生物样品,含有大量的小分子挥发性有机代谢物(VOMs)。这些VOMs 与人体生理及病理状况密切相关,其中一些VOMs 可作为某些疾病,如糖尿病、肺癌等的重要生物标志物,为疾病的快速筛查提供重要信息。
Replacement of capillary with solid substrates for sample loading and ionization has created many new possibilities for electrospray ionization mass spectrometry(ESI-MS).