MRI: Acquisition of a spectrofluorometer for chemistry research and teaching

MRI：购买用于化学研究和教学的分光荧光计

• 批准号: 1337396
• 负责人: Warren De Bruyn
• 金额: $ 3.96万
• 依托单位: Chapman University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-09-15 至 2016-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1337396&HistoricalAwards=false
• 关键词: MRI; Acquisition; spectrofluorometer; chemistry; research

With this award from the Chemistry Major Research Instrumentation Program, Professor Warren De Bruyn from Chapman University and colleague Catherine Clark will acquire a benchtop spectrofluorometer with a built-in UV-VIS spectrophotometer which makes simultaneous fluorescence and absorbance measurements. The proposal is aimed at enhancing research and education at all levels, especially in areas such as studies of rates and mechanisms of photochemically driven processes and carbon cycling related to chromophoric dissolved organic matter (CDOM) in marsh, coastal and marine waters, e.g., processing and optical properties of CDOM in surface and pore waters in salt marshes, photochemical production of hydrogen peroxide in coastal waters and impacts on microbial water quality, production and decomposition of volatile organic carbon gases like acetone and photolysis of polyaromatic hydrocarbons in urban runoff.A spectrofluorometer allows fluorescence parameters. In general, fluorescence is a form of luminescence in which light is emitted by a substance that has absorbed light or other electromagnetic radiation. Often the light that is emitted has a longer wavelength and thus less energy than the absorbed radiation. This phenomenon has many useful applications in chemical sensors, fluorescence labeling, dyes and biological detectors. This instrument will be used for research and also in educational activities.

有了化学专业研究仪器计划的这个奖项，查普曼大学的Warren De Bruyn教授和同事Catherine Clark将获得一台台式荧光分光光度计，内置紫外可见分光光度计，可同时进行荧光和吸光度测量。该提案旨在加强各级的研究和教育，特别是在研究光化学驱动过程的速率和机制以及与沼泽、沿海和海洋沃茨中的发色溶解有机物有关的碳循环等领域，例如，CDOM在盐沼的表面和孔隙沃茨中的处理和光学特性、沿海沃茨中过氧化氢的光化学产生和对微生物水质的影响、挥发性有机碳气体（如丙酮）的产生和分解以及城市径流中多环芳烃的光解。通常，荧光是发光的一种形式，其中光由吸收了光或其他电磁辐射的物质发射。通常，发射的光具有较长的波长，因此比吸收的辐射具有更少的能量。这种现象在化学传感器、荧光标记、染料和生物检测器中有许多有用的应用。 该仪器将用于研究和教育活动。