CAJ | 학술논문

沉积物-水界面(SWI)是生物地球化学循环的主要界面，界面上溶解氧(DO)的分布实时测量对于了解生物扰动的复杂作用和生物地球化学循环过程有着重要意义。为了探索生物扰动作用对SWI微尺度溶解氧二维分布的影响作用，本文以八乙基卟啉铂为荧光指示剂，掺杂香豆素(Macrolex Yellow 10GN)作为荧光素能量供体，以聚苯乙烯为基质制作了光学平面传感膜。以发光二极管(LED)为激励光源，结合彩色相机，构建了基于比率法的二维溶解氧观测系统，系统能够以0.36 mm 的空间分辨率对SWI 的溶解氧分布连续观测，实验室内的模拟实验结果表明，底栖沙蚕掘穴扰动可使局部沉积物溶解氧质量比提高3~4mg/g。该研究填补了国内基于比率法的平面光学溶解氧传感器研究领域的空白。
침적물-수계면(SWI)시생물지구화학순배적주요계면，계면상용해양(DO)적분포실시측량대우료해생물우동적복잡작용화생물지구화학순배과정유착중요의의。위료탐색생물우동작용대SWI미척도용해양이유분포적영향작용，본문이팔을기계람박위형광지시제，참잡향두소(Macrolex Yellow 10GN)작위형광소능량공체，이취분을희위기질제작료광학평면전감막。이발광이겁관(LED)위격려광원，결합채색상궤，구건료기우비솔법적이유용해양관측계통，계통능구이0.36 mm 적공간분변솔대SWI 적용해양분포련속관측，실험실내적모의실험결과표명，저서사잠굴혈우동가사국부침적물용해양질량비제고3~4mg/g。해연구전보료국내기우비솔법적평면광학용해양전감기연구영역적공백。
As the main interface of bio-geochemical circles, sediment-water interface (SWI) is one of the important research areas. The concentration and distribution of dissolved oxygen (DO) at SWI is of great significance to better understand the mechanism of bioturbation and biogeochemical circling. The sensor film utilizing Platinum(II)-octaethylporphyrin (PtOEP), Macrolex Yellow 10GN, and Polystyrene were userd as fluorescence indicator, donor, and matrix respectively. Planar optode was successfully developed with blue-LED as excitation light, color camera as image captor, and a self-made sensor film, showing good performance in the study. With the planar optode described above, an elevation of 3×10-6~4×10-6 of dissolved oxygen concentration was observed at bioturbation areas, with a spatial resolution of 0.36 mm. Abnormal points are analyzed at last.