Trial instrument of in situ auto-chemical analysis for the purpose of long term observation in the ocean.

本研究的目的是开发一种现场化学自动分析仪，以获得高精度的Mn数据，这将是至关重要的研究海底热液活动和冷渗漏。首先建立了一种高灵敏度的锰化学发光检测方法，然后构建了流动式现场锰分析仪GAMOS（地球化学异常监测系统）。对于原位流通分析，两个泵系统，蠕动泵和隔膜泵，分别用于短期和长期操作。1997年7月至9月和1998年3月，通过将GAMOS与Shinkai 6500（JAMSTEC）号潜水器和“Hakuho Maru”号研究船的CTD-Carnival取样系统相连，分别对东太平洋海隆南部（D= 2 600米）和马里亚纳海槽南部（3 200米）的热液活动地点进行了调查。此外，我们成功地获得了详细的数据Mn和温度（T）在阿尔文巡航期间，1998年9月至10月。Mn/T值的变化反映了热液活动的复杂时空变化。这些重复的GAMOS海上操作大大提高了其性能。在该项目的最后一年，GAMOS被安装到AUV“R-One”（工业科学研究所），在世界上首次建立了AUV原位分析系统。

The purpose of this study is to develop an in-situ chemical auto-analyzer for obtaining highly accurate Mn data, which will be essentially important to research submarine hydrothermal activity and cold seepage. At first we developed a highly sensitive chemiluminescence detection method for Mn analysis, then constructed a flow-through in situ Mn analyzer GAMOS (Geochemical Anomalies Monitoring System). For the in situ flow-through analysis, two pump systems, peristaltic pump and diaphragm pump, were employed for short term and long term operations, respectively. By attaching GAMOS to the submersible Shinkai 6500 (JAMSTEC) and a CTD-Carousel sampling system of R/V Hakuho Maru, hydrothermally active sites in the southern East Pacific Rise (D=2,600 m) and in the southern Mariana Trough (3,200 m) were surveyed in July to September, 1997, and in March, 1998, respectively. In addition, we successfully obtained detailed data of Mn and temperature (T) during the Alvin cruise in September to October, 1998. Complicated temporal and spatial variations of hydrothermal activity were characterized by Mn/T variations. These repetitive GAMOS operations at sea improved its performance significantly. In the last year of this project, GAMOS was installed to the AUV "R-One" (Institute of Industrial Science) to establish an AUV-in situ analyzer system for the first time in the world.