GOALI: Plant-derived Biogenic Sulfur Emissions and the Environment

美国国家科学基金会化学系的环境化学科学项目支持纽约州立大学奥尔巴尼分校的Rabi A.Musah教授和Robert B.Cody教授的研究，他们将指导一个项目，利用实时质谱仪(DART-MS)直接分析代表性植物向环境排放的挥发性有机硫化合物(VOSC)。为了确定这些化合物在大气中的可能命运，将研究已识别的化合物在暴露于与大气相关的自由基(如臭氧、羟基和NOx物种)时的气相反应。与工业合作伙伴JEOL USA Inc.合作，将开发一个与JEOL AccuTOF直接实时分析(DART®)质谱仪接口的平台，以便在空气中的环境条件下对VOSCs进行高分辨率DART-MS分析。VOSCs的生物地球化学一直是人们关注的焦点，因为人们越来越多地认识到VOSCs对大气硫的贡献，因此它们可能会影响全球气候。这一研究不仅有助于研究植物排放的VOSCs的命运，而且还有助于研究它们最终可能对大气总硫负荷做出贡献的程度，以及影响污染、酸雨和云形成等现象的程度。开发的分析工具将在商业上获得，并在与化学、生物化学、法医化学、食品科学、农业和医学等一系列其他领域相关的分析中找到广泛的用途。一方面，博士后实习生和研究生之间的教学和研究一体化，另一方面，JEOL科学家之间不受部门或行政边界的阻碍，将在研究型教学中培养一种文化转变。学员将获得广泛的技能、优势和理解力，以便在跨学科的团队环境中工作，同时具备专业领域的深厚知识基础。培训将为学生和博士后助理提供科学准备，无论他们是从事学术还是非学术职业，并将为探索和应用新的实验方法来解决问题提供温床。

The Environmental Chemical Sciences Program in the Chemistry Division at the National Science Foundation supports the research of Professor Rabi A. Musah and Robert B. Cody both at the State University of New York at Albany who will direct a project to investigate volatile organosulfur compounds (VOSCs) that are emitted by representative plants to the environment using direct analysis in real time mass spectrometry (DART-MS). In order to determine the possible fates of these compounds in the atmosphere, the gas-phase reactions of identified compounds when exposed to atmospherically relevant radicals, such as ozone, hydroxyl and NOx species, will be investigated. In collaboration with industrial partner JEOL USA Inc., a platform that interfaces with the JEOL AccuTOF Direct Analysis in Real Time (DART®) mass spectrometer will be developed to permit high resolution DART-MS analysis of VOSCs under ambient conditions in air. The biogeochemistry of VOSCs has been the focus of significant attention because of increased awareness of their contribution to atmospheric sulfur, and hence their potential to influence the climate globally.This research will facilitate the study of not only the fates of plant emitted VOSCs, but also the extent to which they may ultimately contribute to the overall atmospheric sulfur burden, and influence pollution, acid rain, and cloud formation, among other phenomena. The developed analytical tools would be commercially available and find broad utility for analyses relevant to a range of other fields including chemistry, biochemistry, forensics chemistry, food sciences, agriculture, and medicine. The integration of teaching and research between the postdoctoral trainee and graduate student on the one hand, and the JEOL scientists on the other, unimpeded by departmental or administrative boundaries, will cultivate a cultural shift in research-based instruction. The trainees will gain a breadth of skills, strengths, and understanding to work in an interdisciplinary team environment while being grounded with depth of knowledge in a major field. The training will provide scientific preparation for the student and the postdoctoral associate whether they pursue academic or non-academic careers and it will provide a breeding ground for exploration and application of novel experimental approaches to resolve problems.