MRI: Acquisition of a GC-MS/MS

MRI：GC-MS/MS 的采集

• 批准号: 1336770
• 负责人: Ralph Mead
• 金额: $ 15.12万
• 依托单位: University of North Carolina at Wilmington
• 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=1336770&HistoricalAwards=false
• 关键词: MRI; Acquisition; GC; MS

With this award from the Chemistry Major Research Instrumentation Program, Professor Ralph Mead from the University of North Carolina Wilmington and colleague Pamela Seaton will acquire a gas chromatograph triple quadrupole mass spectrometer (GC-MS/MS). The proposal is aimed at enhancing research and education at all levels, especially in areas such as (a) characterization of photoproducts generated from the destruction of emerging contaminates in natrural waters; (b) detection, identification and understanding of the transport of pollutants on marine plastics; and (c) structural elucidation of tructural elucidation of triglycerides in aquaculture raised fish to optimize growth and assess nutritional quality.A gas chromatograph-mass spectrometer vaporizes and separates a multi component mixture which then passes into the mass spectrometer where the components are ionized. The mass spectrometer determines the mass/charge ratio of these particles (parent molecular ion and fragment ions). This highly sensitive technique allows determination of the masses of the particles, their chemical composition and enables one to deduce the structure of the substances in a complex mixture. The tandem mass spectrometer (MS/MS) involves multiple steps with some form of fragmentation occurring between stages. The instrumentation provided by this award will allow faculty and students the opportunity to pursue research projects of environmental importance at the University of North Carolina Wilmington. It will advance the training of many students in the use of this important and widely used analytical technique.

凭借化学专业研究仪器计划的这一奖项，北卡罗来纳大学威尔明顿分校的 Ralph Mead 教授和同事 Pamela Seaton 将获得一台气相色谱三重四极杆质谱仪 (GC-MS/MS)。该提案旨在加强各级的研究和教育，特别是在以下领域：(a) 破坏自然水域中新出现的污染物所产生的光产物的表征； (b) 检测、识别和了解污染物在海洋塑料上的迁移情况； (c) 结构阐明水产养殖鱼类中甘油三酯的结构，以优化生长并评估营养质量。气相色谱-质谱仪蒸发并分离多组分混合物，然后将其送入质谱仪，其中各组分被电离。质谱仪测定这些粒子（母体分子离子和碎片离子）的质荷比。这种高度灵敏的技术可以确定颗粒的质量及其化学成分，并使人们能够推断出复杂混合物中物质的结构。串联质谱仪 (MS/MS) 涉及多个步骤，阶段之间会发生某种形式的碎片。该奖项提供的仪器将使教师和学生有机会在北卡罗来纳大学威尔明顿分校开展具有环境重要性的研究项目。它将促进许多学生使用这一重要且广泛使用的分析技术的培训。