| In recent years,with the vigorous development of our economy,the demand for energy from mankind in production activities has been constantly increasing,which has led to the rapid development of oil and gas transportation on land and seafloor.As a result,the situation of marine oil pollution has become more and more serious,which has endangered the marine ecological balance,and endanger the survival of plants,animals and human health through food chains and other means.Therefore,it is of great significance for water pollution control and ecological sustainable development to quickly and accurately realize the oil species identification and concentration detection of petroleum pollutants in water,and then find the oil spill location.Because of its unique fast and sensitive detection advantages,fluorescence spectroscopy has been widely used in petroleum pollutants monitoring field.Configured the different concentration mixed solutions of 0# diesel,95# gasoline and common kerosene in CCl4,the three-dimensional fluorescence spectrum and contour spectrum were measured by Hitachi F-7000 spectrometer.To solve the problem that it is difficult to determine the number of components by PARAFAC when the composition of the mixture is similar,this paper uses ART method which does not need to pre-set the correct group number to detect petroleum pollutants in water and compare them with the results obtained by PARAFAC.When PARAFAC was applied and the group number was set to 3,the obtained recoveries of diesel,gasoline and kerosene were 95.60±3.60%,94.66±3.68% and 95.49±4.49%.ART dose not require the presetting group number,and the recoveries were 96.58±2.17%,95.17±9.17% and 95.90%±8.90%.Comparing the results of the two methods,they two can be used for the identification and measurement of three-group petroleum pollutants,and both of them can get a good recovery rate,in which ART does not need to set the group number in advance,but has more advantages. |
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