Preparation and Distribution of DOC Consensus Reference Materials

该奖项是根据2009年美国复苏和再投资法案（公法111-5）资助的。在这个项目中，迈阿密大学的研究人员将继续制作和分发共识参考材料（CRM）程序，该程序最初是在1999年开发的，用于支持国际海洋化学团体对海水中溶解有机碳的一致、高质量测量。随着国际上对海洋碳循环研究的持续努力，现有的CRM计划将继续为全球可比的海洋溶解有机碳（DOC）测量提供至关重要的基准。海洋DOC测量目前在美国的50多个实验室和世界其他地区的更多实验室进行。在此CRM计划开始分发参考材料之前，在许多实验室中进行的分析没有由一个共同的参考材料联系起来，因此，不具有可比性。因为没有一个独立的和通用的标准可以用来检查单个分析的校准，所以在大多数实验室进行测量时几乎没有达成一致。自启动以来，该计划已产生约80,000安瓿深海水和约60,000安瓿低碳水安瓿。到目前为止，这些安瓿已分发给30个国家的230个美国和国际实验室。近年来，迈阿密集团每年的出货量约为17,500安瓿。随着参考物质计划的第四个3年支持期的更新，含有约40 ìmol C/kg生物难溶有机碳的深海水和低碳参考水将继续提供给海洋DOC社区。更广泛的影响：随着对这项工作的重新支持，美国和国际海洋碳研究界将继续对主要的海洋碳库进行高质量的测量，从而提高社会评估海洋碳循环变化及其与全球气候变化的关系的能力。

This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5).In this project, investigators at the University of Miami will continue producing and distributing a consensus reference material (CRM) program that was first developed in 1999 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 will continue to provide a critically important benchmark for globally comparable marine dissolved organic carbon (DOC) measurements. Marine DOC measurements are currently made at more than 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, 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.Since its inception, the program has generated ca. 80,000 ampoules of deep seawater and ca. 60,000 ampoules of low carbon water ampoules. So far, these ampoules have been distributed to 230 US and international laboratories in 30 nations. In recent years the Miami group has been shipping ca. 17,500 ampoules per year. With renewal of the reference material program for a fourth 3-year period of support, deep ocean water containing approximately 40 ìmol C/kg of biologically refractory dissolved organic carbon and low carbon reference water will continue to be available to the marine DOC community. Broader Impacts: With renewal of support for this work the US and international ocean carbon research communities will continue to produce high-quality measurements of a major marine carbon reservoir, thereby advancing society's ability to assess changes in the marine carbon cycle and its involvement in global climate change.