Baszanowska Emilia, Otremba Zbigniew
Physics Department, Gdynia Maritime University, 81-225 Gdynia, Poland.
Sensors (Basel). 2017 Jun 2;17(6):1276. doi: 10.3390/s17061276.
Excitation-emission matrix spectroscopy (EEMS) was applied to determine the fluorometric index (FI) as a parameter indicating the presence of a source of oil pollution in a specific area of the sea. Seawater from the Polish coast (the Baltic Sea) and the same water combined with various amounts of crude oil extracted from the Baltic Sea shelf (-type oil) were used in this study. The FI values were calculated for excitation and emission wavelengths found at the maximal peak, taking into account the natural seawater and the seawater artificially contaminated (for an oil-to-water ratio range of 0.5 × 10 - 500 × 10). The wavelength configurations (Ex/Em) (225/355 and 225/340) for the FI index were applied. It was found that, independent of the amount of oil, the FI achieves a higher value for natural seawater than for seawater that has had contact with oil. These results provide the basis to design a sensor signaling the appearance of oil in a defined sea area.
采用激发-发射矩阵光谱法（EEMS）测定荧光指数（FI），该指数作为指示特定海域是否存在油污染源的参数。本研究使用了来自波兰海岸（波罗的海）的海水，以及与从波罗的海大陆架提取的不同量原油（-型油）混合后的相同海水。考虑到天然海水和人工污染海水（油与水的比例范围为0.5×10 - 500×10），计算了在最大峰值处的激发和发射波长的FI值。应用了FI指数的波长配置（Ex/Em）（225/355和225/340）。结果发现，与油量无关，天然海水的FI值高于与油接触后的海水。这些结果为设计一种在特定海域发出油出现信号的传感器提供了依据。
