Dynamic Headspace Sampling in Support of Engineering and Science in Environmental Analysis

科学部正在购买一台自动吹扫和捕集/动态顶空取样器，以增加其现有的气相色谱-质谱仪系统。这种设备允许将环境保护局的协议引入科学课程的适当领域。这些协议要求测量复杂基质中的挥发物和半挥发物，同时避免昂贵、耗时的提取和清理。学生们首先在仪器分析的一门特殊课程中接触到这种设备，在那里他们进行了涉及空气样本、石油产品、塑料、食品和药物分析的实验。在有机化学课程中，学生从合成制剂中分离出挥发物。使用该仪器的其他课程包括毒理学、生物化学和工程水文学。

The Science Department is purchasing a automatic purge and trap/dynamic headspace sampler to add to its existing gas chromatograph-mass spectrometer system. This equipment allows for the introduction of Environmental Protection Agency protocols into appropriate areas of the science curriculum. These protocols call for the measurement of volatiles and semi- volatiles in complex matrices while avoiding costly, time- consuming extraction and cleanup. Students are first introduced to the equipment in a special course in instrumental analysis where they perform experiments involving the analysis of air samples, petroleum products, plastics, foods and drugs. In the organic chemistry course, students separate volatiles from a synthetic preparations. Other courses in which the instrument is used include toxicology, biochemistry, and engineering hydrology.