MRI: Acquisition of a GC-MS/MS

北卡罗来纳大学威尔明顿分校的拉尔夫·米德教授和他的同事帕梅拉·西顿获得了化学专业研究仪器项目颁发的这一奖项，他们将获得一台气相色谱三重四极杆质谱仪(GC-MS/MS)。该建议旨在加强各级的研究和教育，特别是在下列领域：(A)对自然和农村水域中新出现的污染物的销毁产生的照片产品进行表征；(B)检测、识别和了解污染物在海洋塑料上的传输；以及(C)对水产养殖养鱼中甘油三酯的结构阐明进行结构阐明，以优化生长和评估营养质量。质谱仪确定这些粒子(母分子离子和碎片离子)的质量/电荷比。这种高度灵敏的技术可以确定颗粒的质量及其化学成分，并使人们能够推断复杂混合物中物质的结构。串联质谱仪(MS/MS)包括多个步骤，在各阶段之间发生某种形式的碎裂。该奖项提供的仪器将允许教职员工和学生有机会在北卡罗来纳州威尔明顿大学从事具有环境重要性的研究项目。它将促进许多学生在使用这一重要和广泛使用的分析技术方面的培训。

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.