Fluorescence emission spectral measurements for the detection of oil on shore
Fluorescence emission spectral measurements for the detection of oil on shore
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DOI：
10.2172/436488
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发表时间：
1996-12
期刊：
影响因子：
--
通讯作者：
L. Balick;J. Benedetto;S. Lutz
中科院分区：
文献类型：
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作者：
L. Balick;J. Benedetto;S. Lutz
美国能源部特殊技术实验室正在开发一种机载激光诱导荧光成像（LIFI）系统，以支持政府设施的环境管理。目前正在评估这一系统或将从这一系统派生出来的一个系统探测海岸、湿地和冰上溢油的潜力。为了更充分地了解石油泄漏的探测能力，重点放在石油信号和与自然背景（沙子、植被等）有关的信号之间的光谱对比上。为了支持这一评价，已进行了两个系列的控制测量，以提供一些石油和背景材料的激发-发射特性的严格表征，并着眼于石油风化对陆地背景材料的影响。石油目标包括重质原油、柴油、煤油和航空燃料，背景包括海滩沙、稻草、泥浆、焦油和海带。背景材料上的油的荧光在暴露于环境的最初几天内迅速降低，并且比纯油样品更快。
The U.S. DOE Special Technologies Laboratory is developing an airborne Laser-Induced Fluorescence Imaging (LIFI) system to support environmental management of government facilities. This system, or a system to be derived from it, is being evaluated for its potential to detect spilled oils oN shore, in wetlands, and on ice. To more fully understand the detectivity of oil spills, emphasis has been placed on the spectral contrast between the oil signatures and signatures associated with the natural backgrounds (sand, vegetation, etc.). To support this evaluation, two series of controlled measurements have been performed to provide rigorous characterization of the excitation-emission properties of some oils and background materials, and to look at the effects of weathering of oil on terrestrial background materials. Oil targets included a heavy crude oil, diesel, kerosene, and aviation fuel and backgrounds included beach sand, straw, mud, tar and kelp. Fluorescence of oil on background materials decreases rapidly over the first few days of exposure to the environment and is more rapid than for neat oil samples.