Analysis of sulfur hexafluoride in seawater
Analysis of sulfur hexafluoride in seawater
复制标题
海水中六氟化硫的分析
DOI：
10.1029/91jc00104
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发表时间：
1991
影响因子：
--
通讯作者：
A. Watson
中科院分区：
文献类型：
--
作者：
R. Wanninkhof;J. Ledwell;A. Watson
描述了测量海水中低含量六氟化硫的分析程序和仪器。 500 mL 样品的最低可检测水平约为 3×10−17 mol/L。可以以约 2% 的精度测量 1.5 至 300×10−15 mol/L 的浓度。该程序包括在干冰/2-丙醇浴中使用 Porapak-Q© 捕集器的浓缩步骤。该系统已用于圣莫尼卡盆地和圣克鲁斯盆地的示踪剂实验，并将针对未来深海示踪剂释放实验进行改进。
Analysis procedures and instrumentation to measure low levels of sulfur hexafluoride in seawater are described. The minimum detectable level for a 500 mL sample is about 3×10−17 mol/L. Concentrations from 1.5 to 300×10−15 mol/L can be measured with approximately 2% precision. The procedure includes a concentration step employing a trap of Porapak-Q© in a dry ice/2-propanol bath. The system has been used for tracer experiments in Santa Monica Basin and Santa Cruz Basin, and will be improved for future tracer release experiments in the deep ocean.