Contribution of oceanic DMS and isoprene to atmospheric environment by high-resolution measurements

为了评价海洋中二甲基硫化物(DMS)和异戊二烯对大气环境的贡献，我们尝试建立了膜平衡器连续测定海水中DMS和异戊二烯的新方法。虽然我们发现由于标准溶液的制备困难，异戊二烯的平衡度存在很大的不确定度，但在本研究中，DMS的平衡度被评估为80%，该系统现已可用于海洋观测。进一步的研究将加深我们对DMS和异戊二烯对海洋大气环境影响的了解。

In order to evaluate contribution of oceanic dimethyl sulfide (DMS) and isoprene to atmospheric environment we tried to develop a new analytical method with membrane equilibrator for continuous measurement of DMS and isoprene dissolved in seawater. While we found that the degree of equilibrium for isoprene has large uncertainty because of the difficulty of preparation of standard solution, the degree for DMS was evaluated as 80% in this study and the system is now available to use in the oceanic observation. Further research will improve our understanding of influence of DMS and isoprene on the atmospheric environment over the sea.