How to Measure Dissolved Organic Matter in Seawater

这一努力将寻求解决由于高温燃烧方法的发展而引起的关于DOM测量的争议。明显的差异可能是由于可变的空白干扰和不同的校正方法所致。看来，严格的协议不仅适用于样品收集和准备，而且适用于标准化和空白校正，可以使不同的DOC值更接近。老式的湿化学法和紫外法是否真的遗漏了很多“新的”DOC，还有待观察。用于DON的HTC方法显然开发得不够完善，但随着在方法开发中关注氮素收支的监测，人们有望获得更完整的最终产品，确实提供了所有DON。目前还没有明确的迹象表明，常规方法测得的DON值远低于HTC法，但HTC法仍有一些严重的问题需要解决。拟议的下一步是一项大约需要两年时间的努力，其依据是为解决这一问题而召开的全社区研讨会提出的建议。

This effort will seek a resolution to the controversy on DOM measurements that have arisen due to the development of a high temperature combustion method. Apparent differences may be due to variable blank interferences and varying approaches to correction. It appears that rigorous protocol, not only for sample collection and preparation, but also for standardization and blank correction, could bring disparate DOC values closer together. It remains to be seen whether the older wet chemical and UV methods really miss much of the "new" DOC. The HTC methods for DON are obviously less well developed, but there is hope that with attention to monitoring of nitrogen budgets in method development a more complete final product can be obtained that does give all of the DON. There is presently no clear indication that conventional methods for DON give values much lower than HTC ones, but there are serious problems still to be resolved with the HTC methods. The proposed next step is an effort that will take approximately two years and is based on recommendations arising from a community wide workshop convened to address the issue.