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冰芯中的甲磷酸盐（ＭＳＡ）作为过去海洋逸出的二甲基硫化物（ＤＭＳ）的可能示踪剂已引起了注意。除了硫酸盐以外，ＭＳＡ是ＤＭＳ的第二个重要的气溶胶氧化产物，但与硫酸盐对比，ＤＭＳ氧化是ＭＳＡ已知的唯一来源。Ｃｈａｒｌｓｏｎ等提出的海洋浮游植物逸出的硫影响云反照率的气候反馈机理的假说，增加了建立跨越大的气候变化的ＭＳＡ和非海盐硫酸盐长期记录的兴趣。从南极冰芯中已提取了跨越几年到几千年的ＭＳＡ和非海盐硫酸盐记录，但是只有Ｖｏｓｔｏｋ冰芯记录覆盖了整个冰期旋回。现已发现冰期南极ＭＳＡ和非海盐硫酸盐的浓度在增长。在些，我们公布了北半球第一个ＭＳＡ记录和第一个非海盐硫酸的连续记录，二者都是从东格陵兰Ｒｅｎｌａｎｄ冰芯中提取的。记录从全新世延伸到距今１３万年的Ｅｅｍ间冰期。与南半球记录的差别是显著的，随着冰进，ＭＳＡ的浓度降低，但非海盐硫酸盐的浓度增高。
Phosphate (MSA) in ice cores has drawn attention as a potential tracer for dimethyl sulfide (DMS) released from the oceans in the past. In addition to sulfate, MSA is the second most important aerosol oxidation product of DMS, but DMS oxidation is the only source known to MSA as compared to sulfate. Charlson et al.’s hypothesis that the presence of sulfur from ocean phytoplankton that affects cloud albedo for climate feedback increases the interest in establishing long-term records of MSA and non-sea salt sulfate across large climatic changes. MSA and non-sea salt sulfate records spanning years to thousands of years have been extracted from Antarctic ice cores, but only Vostok ice core records cover the entire glacial cycle. It has been found that glacial Antarctic MSA and non-sea salt sulfate concentrations are increasing. At this point, we report the first MSA record in the Northern Hemisphere and the first continuous record of non-sea salt sulfuric acid, both extracted from the Renland ice core in East Greenland. Records of the Eem interglacial extending from Holocene to 130,000 years ago. The difference from the record in the Southern Hemisphere is significant, with the concentration of MSA decreasing as ice progresses but the concentration of non-sea salt sulphate increasing.