MRI-R2: Acquisition of Atomic Absorption Instrumentation for Multi-Disciplinary Undergraduate Research and Research Training

该奖项是根据2009年美国复苏和再投资法案（公法111-5）资助的。该奖项来自主要研究和仪器（MRI）项目，由化学部门和极地项目办公室支持，Stanton S.H.Y. Ching教授，Stephen H. Loomis， T. Page Owen, Jr.， Joseph Schroeder和Peter a . Siver教授将获得火焰原子吸收（AA）光谱仪，以推进康涅狄格学院化学和生命科学的研究和研究培训活动。将进行以下研究：(1)确定微孔和纳米结构锰氧化物的元素组成，以确定其对颗粒生长、催化活性和电化学性能的影响；(2)建立了北美东海岸淡水湖中碱基阳离子（Na+、K+、Mg2+和Ca2+）浓度与特定种类的绿藻和硅藻存在的关系；(3)利用Li+分析法测定淡水海绵微球的胞内体积；(4)分析大鼠血、脑组织铅水平，探讨化学治疗对铅中毒的神经保护作用；(5)测定肉食性猪笼草消化液和表皮皮中可溶性金属的浓度，研究植物的离子转运和耐盐性。火焰原子吸收光谱使研究人员能够对样品进行元素分析，特别是其金属含量。火焰使被光源探测的样品雾化。由于原子和离子吸收特征波长的光，从其光谱特性中实现了对它们的识别和定量。该仪器将被康涅狄格学院和附近的美国海岸警卫队学院的学生用于研究和本科实验课。

This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5).With this award from the Major Research and Instrumentation (MRI) program, supported by the Chemistry Division and the Office of Polar Programs, Professor Stanton S.H.Y. Ching, Stephen H. Loomis, T. Page Owen, Jr., Joseph Schroeder and Peter A. Siver will acquire a flame atomic absorption (AA) spectrometer to advance research and research training activities in chemistry and the life sciences at Connecticut College. The following research will be carried out: (1) determining elemental compositions of microporous and nanostructured manganese oxides to correlate the influence on particle growth, catalytic activity, and electrochemical performance; (2) establishing relationships between concentrations of base cations (Na+, K+, Mg2+, and Ca2+) and the presence of specific species of chrysophyte and diatom algae in freshwater lakes along the North American east coast; (3) determining intracellular volumes in freshwater sponge gemmules by Li+ analysis; (4) analyzing Pb levels in blood and brain tissue of rats to study neuroprotective effects of chemical treatments for Pb poisoning; and (5) measuring soluble metal concentrations in digestive fluids and epidermal peels of carnivorous pitcher plants to study ion transport and salt tolerance in plants.Flame Atomic Absorption spectroscopy enables researchers to perform elemental analysis of a sample particularly its metal content. A flame atomizes the sample that is probed by a light source. Since atoms and ions absorb light at characteristic wavelengths, identification and quantification of them from their spectral characteristics are realized. The instrument will be used in research and undergraduate laboratory classes by students at Connecticut College and the nearby U.S. Coast Guard Academy.