一种海水痕量元素CTD采集收放用敷塑纤维通讯缆的设计及检测试验

痕量元素及其同位素采集、预处理和分析在海洋研究中具有重要的作用,对于认识全球环境变迁具有重要的价值。但其浓度在这些过程中易受沾污。本文结合海水痕量元素CTD现场采集工作环境,工作拉力等特殊要求,先后跟缆绳设计、生产制造厂家进行缆绳相关技术讨论、确定缆绳各项技术指标。设计敷塑纤维通讯缆,并委托缆绳生产厂家加工出样缆两条。通过对样缆进行静态拉力试验验证缆绳自身工作拉力,并通过成分分析、浸出试验验证最大化减少缆绳对于海中溶解态痕量金属的沾污。该研究结果可提高采样过程的可靠性,保证数据的准确率。

Design and test of a plastic fiber communication cable for CTD collection and retraction of seawater trace elements

Trace elements and their isotopes play a vital role in marine biogeochemistry research, and are of great significance for understanding global environmental changes [1]. The collection, pretreatment and analysis of trace elements and their isotopes play an important role in marine research and are the important data basis for answering many important scientific questions [2]. However, when scientists carefully evaluated the concentration reports of trace elements in the literature, they found that the trace metal content in the ocean has decreased by an order of magnitude. And the analysis process was obviously contaminated. Among them, the marine research ship itself, the steel cable, and the metal devices in the sampling equipment are particularly important for the contamination of dissolved trace metals in the ocean [3]. Combined with the special requirements of seawater trace element CTD field collection, working environment, working tension, etc., design a plastic-coated fiber communication cable, and verify the cable''s own working tension through static tension test; verify that the plastic-coated fiber communication cable is the largest through component analysis and leaching test Reduce the contamination of the cable to the dissolved trace metals in the sea.