Persistent Organic Pollutants in Alaska. New GC-MS Experiments and Experiences for College and Pre-College Students

阿拉斯加的持久性有机污染物。

基本信息

批准号：
0736946
负责人：
John Keller
金额：
$ 15万
依托单位：
University of Alaska Fairbanks Campus
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2007
资助国家：
美国
起止时间：
2007-11-15 至 2011-10-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=0736946&HistoricalAwards=false
关键词：
Persistent Organic Pollutants Alaska.New

项目摘要

This project is introducing college and pre-college students in Alaska to the concepts and practices of chemical analysis, especially relating to the local occurrence of persistent organic pollutants (POPs). Alaska, because of its geographical location and cold climate, is particularly susceptible to deposition of organic pollutants from winds and ocean currents originating at lower latitudes. A new GC-MS instrument equipped with a sampling robot that automatically pre-concentrates pollutant compounds from environmental samples is being installed for student use. Four specific activities are underway: i) pre-college students at the university's summer Rural Alaska Honors Institute for Alaska Natives are using GC-MS and passive sampling techniques to identify and quantify Alaskan POPs; ii) in order to learn more about stable isotopes in nature first-year general chemistry students are studying volatile halogenated organics, which occur in trace amounts in drinking water; iii) organic chemistry students are identifying volatile organics in fragrant biological or commercial samples, and are applying detailed computational analysis to the data; and, iv) advanced chemistry majors are using GC-MS to measure the physical properties of POPs, which affect their distribution within the air-water-land system.

该项目正在向阿拉斯加的大学和大学前学生介绍化学分析的概念和实践，尤其是与持续存在的有机污染物（POP）的当地发生有关的概念和实践。由于其地理位置和寒冷的气候，阿拉斯加特别容易受到源自较低纬度的风和洋流的有机污染物的沉积。一种配备了采样机器人的新型GC-MS仪器，该机器人会自动从环境样本中预先审查污染物化合物，以供学生使用。正在进行四项具体活动：i）阿拉斯加夏季乡村的阿拉斯加夏季乡村荣誉研究所的大学前学生正在使用GC-MS和被动抽样技术来识别和量化阿拉斯加流行音乐； ii）为了了解更多有关自然界一年级化学的稳定同位素的信息，学生正在研究挥发性的卤代有机物，这些有机物发生在饮用水中； iii）有机化学专业的学生正在识别芬芳生物或商业样品中的挥发性有机物，并将详细的计算分析应用于数据； iv）高级化学专业的专业正在使用GC-MS测量流行音乐的物理特性，这会影响其在空气水域系统中的分布。