naa a22 4500 510754449 CHVBK 20180411083117.0 cr unu---uuuuu 180411e20130801xx s 000 0 eng 10.1007/s13131-013-0344-y doi (NATIONALLICENCE)springer-10.1007/s13131-013-0344-y Source diagnostic and weathering indicators of oil spills utilizing bicyclic sesquiterpanes [Elektronische Daten] [Chuanyuan Wang, Xiaoke Hu, Shijie He, Xin Liu, Mingming Zhao] Bicyclic Sesquiterpanes (BSs) are ubiquitous components of crude oils and ancient sediments. BSs in crude oils and diesel oil were identified and characterized, the effects of moderate weathering on BS distributions were discussed, and a methodology using diagnostic indices of BSs was developed for oil correlation and differentiation. The results showed that crude oils and oil products had different abundances and distributions of BSs and, consequently, resulted in different diagnostic ratios. The selected diagnostic ratio indices of BSs, such as BS4/BS5 (ratio of 4,4,8,9,9-pentamethyl-decahydronaphthalene to 8β(H)-drimane), BS6/BS5 (ratio of 4,4,9,9,10-pentamethyl-decahydronaphthalene to 8β(H)-drimane), BS8/BS9 (ratio of the second peak to the third peak of C16 sequiterpane), and BS8/BS10 (ratio of C16 sequiterpane to 8β(H)-homodrimane), still maintained better stabilities (%RSD < 5%) after weathering for 30 d. The longer weathering process (150 d) had some effect on such ratios (5% < %RSD < 10%). The facts of the uniqueness, abundance in petroleum, and chemical stability of BSs enable them to be suitable as an effective diagnostic means for identifying spilled oil with moderate weathering, particularly for lighter refined product samples that are difficult to identify by current techniques. The Chinese Society of Oceanography and Springer-Verlag Berlin Heidelberg, 2013 bicyclic sesquiterpanes nationallicence distribution nationallicence diagnostic indices nationallicence weathering nationallicence oil spill source identification nationallicence Wang Chuanyuan Key Laboratory of Coastal Zone Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, 264003, Yantai, China aut Hu Xiaoke Key Laboratory of Coastal Zone Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, 264003, Yantai, China aut He Shijie College of Geography and Planning, Ludong University, 264025, Yantai, China aut Liu Xin Key Laboratory of Coastal Zone Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, 264003, Yantai, China aut Zhao Mingming Key Laboratory of Coastal Zone Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, 264003, Yantai, China aut Acta Oceanologica Sinica Springer Berlin Heidelberg 32/8(2013-08-01), 79-84 0253-505X 32:8<79 2013 32 13131 https://doi.org/10.1007/s13131-013-0344-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s13131-013-0344-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Wang Chuanyuan Key Laboratory of Coastal Zone Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, 264003, Yantai, China aut NATIONALLICENCE 700 1- Hu Xiaoke Key Laboratory of Coastal Zone Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, 264003, Yantai, China aut NATIONALLICENCE 700 1- He Shijie College of Geography and Planning, Ludong University, 264025, Yantai, China aut NATIONALLICENCE 700 1- Liu Xin Key Laboratory of Coastal Zone Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, 264003, Yantai, China aut NATIONALLICENCE 700 1- Zhao Mingming Key Laboratory of Coastal Zone Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, 264003, Yantai, China aut NATIONALLICENCE 773 0- Acta Oceanologica Sinica Springer Berlin Heidelberg 32/8(2013-08-01), 79-84 0253-505X 32:8<79 2013 32 13131 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer