November 2001 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 November, 2001. 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.

2001年11月，研究人员在10个GCE-LTER采样站位开展潮汐调查期间，采用尼斯金采水器（Niskin bottle）采集表层下方的水样。所有水样经灰化处理后的Whatman GF/F滤膜立即过滤，随后取三份平行样品进行酸化、冷藏保存，并转运至实验室开展分析。采用岛津（Shimadzu）总有机碳（TOC）分析仪，通过高温燃烧-色谱分析法测定所有样品中的溶解有机碳浓度。本研究属于GCE-LTER水文监测计划的一部分，后续将按季度重复开展监测工作。