Preparation and Distribution of Consensus Reference Material for Marine DOC

在这个项目中，迈阿密大学的研究人员将继续开发共识参考材料(CRM)计划，以支持国际海洋化学界对海水中溶解有机碳的一致、高质量的测量。随着国际上继续大力研究海洋碳循环，现有的客户关系管理计划将为全球可比较的海洋DOC测量提供必要的基准。海洋溶解有机碳的测量是在美国的50个实验室进行的，而在世界其他地方的实验室则更多。直到1999年这个客户关系管理项目开始分发标准物质之前，在这许多实验室进行的分析并不是由一个共同的标准物质联系在一起的，因此不具有可比性。由于还没有一个独立和通用的标准可用来检查单个分析的校准，大多数进行测量的实验室之间几乎没有达成一致的意见。未来三年的主要项目目标是：将参与该计划的实验室数量增加到200个(到目前为止，我们已经有135个参与者)；将该计划的部分成本转嫁给用户(将收取100美元/盒的使用费)；寻求私营部门的合作和支持(已经开始与岛津公司联系，该公司是海洋DOC社区使用的仪器的主要供应商)。在更广泛的影响方面，海水DOC参考标准的产生将使国际海洋碳研究界能够满怀信心地对主要的海洋碳库进行一致的测量，从而提高社会评估海洋碳循环变化和海洋在气候变化中的作用的能力

ABSTRACTOCE-0622293In this project, researchers at the University of Miami will continue development of a consensus reference material (CRM) program in support of consistent, high quality measurements of dissolved organic carbon in seawater by the international ocean chemistry community. With continued strong international efforts to investigate the marine carbon cycle, the existing CRM program is poised to provide the necessary benchmark for globally comparable marine DOC measurements. Marine dissolved organic carbon measurements are made at 50 laboratories in the United States, and at a greater number of laboratories in the rest of the world. Until this CRM program began distribution of reference materials in 1999, analyses made in these many laboratories were not linked by a common reference material and were, therefore, not comparable. Because there had not been an independent and common standard available, against which calibrations of individual analyses could be checked, there was little agreement amongst the majority of the laboratories making the measurements.The primary project goals for the next three years are: to increase to 200 the number of laboratories participating in the program (we have had 135 participants so far); to place some of the costs of the program onto the users (a user fee of $100/box will be instituted); and to seek private sector partnership and support (contact with the Shimadzu Corporation, a major supplier of the instrumentation used by the marine DOC community, has been initiated). In terms of broader impacts, the production of a seawater DOC reference standard will allow the international ocean carbon research community to pursue with confidence consistent measurements of a major marine carbon reservoir, thereby advancing society's ability to assess changes in the marine carbon cycle and the role of the ocean in climate change