海洋地质前沿2017，Vol.33Issue(9)：53-59,7.DOI:10.16028/j.1009-2722.2017.09008
平面光极的研制及浒苔对沉积物—海水界面溶解氧影响的模拟观测
PLANAR OPTODE FOR DISSOLVED OXYGEN MEASUREMENT FOR ENTEROMORPHA PROLIFERA AROUND SEDIMENT-WATER INTERFACE
摘要
Abstract
The QDs modified with oleic acid is synthesized by the authors.It is lipophilic,of high-efficiency and oxygen insensitivity,and its emission(520 nm) overlaps the Q band absorption peak of Platinum(Ⅱ) with octaethylporphyrin (PtOEP) as the reference.The sensing film is fabricated by using QDs doped with PtOEP which is encapsulated in plasticized polystyrene (PS).The sensor is used for direct mapping of the spatiotemporal variation in oxygen distribution within the effects of Enteromorpha Prolifera in littoral zone and bottom sediment.The result shows that high CO2 may significantly enhance the respiration of Enteromorpha Prolifera,although the oxygen concentration by photosynthesis activity is not significantly changed (about 7 mg/L only).The Enteromorpha Prolifera begins to decay under high temperature and the peak of the oxygen concentration is then dropped to 2.3 mg/L.The decaying Enteromorpha Prolifera at the sediment-water interface forms a severe hypoxia zone in seawater around the sediment-water interface and the hypoxia zone has great impact on the marine environment.关键词
平面光极/溶解氧/量子点/浒苔/PH/温度Key words
planar optode/dissolved oxygen/QDs/enteromorpha prolifera/pH/temperature分类
海洋科学引用本文复制引用
姜子可,于新生,郝英岩..平面光极的研制及浒苔对沉积物—海水界面溶解氧影响的模拟观测[J].海洋地质前沿,2017,33(9):53-59,7.基金项目
国家重点基础研究发展计划(973计划)(2013CB429704) （973计划）
国家自然科学基金(41276089,41176078,41376077,41606086) （41276089,41176078,41376077,41606086）
