June 2003 surface water dissolved organic carbon concentrations at ten Georgia Coastal Ecosystems LTER sampling sites

Water samples were collected by Niskin bottle from just beneath the surface during tidal surveys at ten GCE-LTER sampling sites in June 2003. Water samples were immediately filtered through ashed Whatman GF/F filters and three replicate samples were acidified, refrigerated and transported to the laboratory for analysis. Concentrations of dissolved organic carbon were measured in each sample by high temperature combustion and chromatographic analysis using a Shimadzu TOC analyzer. This study was part of the GCE-LTER hydrographic monitoring program, and will be repeated quarterly.

2003年6月，研究人员在10个GCE-LTER采样站位开展潮汐调查期间，使用尼斯金采水器（Niskin bottle）从水体表层下方采集海水样本。所有采集的海水样本即刻经灰化处理的Whatman GF/F滤膜过滤，随后取三份平行样本进行酸化处理，冷藏后运送至实验室开展分析检测。采用高温燃烧结合色谱分析法，借助岛津（Shimadzu）TOC分析仪对每份样本中的溶解有机碳（dissolved organic carbon）浓度进行测定。本研究作为GCE-LTER水文监测计划的组成部分，将按季度重复开展。