楚科奇海和大亚湾胶体有机物的组成和粒径分布——非对称流场场流仪的应用

• Main Author: 林辉
• Other Authors: 陈敏
• Format: Thesis
• Language: Chinese
• Published: 2017
• Subjects: 非对称流场场流仪; 有色溶解有机物; 胶体有机物; 楚科奇海; 大亚湾; Asymmetric flow field-flow fractionation; Chromophoric dissolved organic matter; Colloidal organic matter; Chukchi Sea; Daya Bay; Chukchi
• Online Access: http://dspace.xmu.edu.cn/handle/2288/129861

本研究对非对称流场场流仪分离、测量海水中胶体有机物的方法进行了摸索和优化，并通过两个夏季航次的采样和分析，首次开展了楚科奇海和大亚湾胶体有机物光学性质及其粒径分布的研究，进而揭示楚科奇海和大亚湾胶体有机物的来源、组成等信息，获得如下主要认识： （1）建立了非对称流场场流仪分离、测量海水胶体有机物的方法，优化了样品进样体积，确定了以0.9%NaCl溶液作为分离海水胶体物质的载液；通过多次重复试验确定了最佳的粒径分离方案，评估了光学探头检测平行性、精密度和检出限；确定了采用蛋白类物质作为粒径校正的标准物质，可较准确地获得天然海水胶体有机组分的分子量。 （2）首次开展了楚科奇海胶体有机物光学性质. The separation and analysis method for marine organic colloids by Asymmetric Flow Field-Flow Fractionation (AF4) was optimized in this study. The properties and size spectra of colloidal organic matter in the Chukchi Sea and the Daya Bay in summer were firstly studied for elucidating the source and composition of colloidal organic matter. The main conclusions were obtained as follows. (1) The sep. 学位：理学硕士 院系专业：海洋与地球学院_海洋化学 学号：22320131151379