几种典型藻种吸收光谱特性的比较  

Comparison of Spectral Absorption Characteristics of Several Typical Algae

作　　者：周虹丽[1] 朱建华[1] 韩冰[1] 李铜基[1] 杨安安[1] 

机构地区：[1]国家海洋技术中心,天津300112

出　　处：《海洋技术》2010年第3期78-81,92,共5页Ocean Technology

基　　金：国家海洋局青年基金(2008419);国家自然科学基金(40606039)资助

摘　　要：以小球藻、扁藻、裸甲藻和它们的混合物为研究对象,通过实验室培养连续观测其吸收光谱,对不同生长期藻类的吸收光谱进行了比较,分析了不同藻类675 nm处吸收系数与Chla浓度的关系,并分析了不同藻类的比吸收光谱。由于色素组成及其比例的不同、色素的包囊效应以及附属色素对吸收的贡献,不同藻种的比吸收光谱有所差异。研究表明,在Chla浓度范围为(27.69～2 856.47)mg.m-3时,比吸收系数在特征波段下的吸收值在440nm为(0.016 9～0.087 9)m2·mg-1,在675 nm为(0.011 2～0.054 9)m2·mg-1。The Chlorella vulgaris, tetraselmis chui, Gymnodinium breve Davis and their mixtures were researched. The absorb spectrum was continually observed through laboratmy culturing method. The absorb spectrum of algae in different periods was compared. The relation of absorption coefficient in 675nm and Chla concentration, as well as the specific absorption coefficient of different algae was analyzed. As a result of difference in compose of pigments and proportion, package effect, contribution of accessional pigments, the specific absorption coefficient varied in different algae. The study displayed that specific absorption coefficient was （0.016 9-0.087 9） m2·mg^-1 in 440 nm and （0.011 2~0.054 9） m2·mg^-1 in 675nm while the Chla concentration is between 27.69 m2·mg^-3 and 2 856.47 m2·mg^-3.

关 键 词：吸收光谱 小球藻 扁藻 裸甲藻 

分 类 号：TP722.4[自动化与计算机技术—检测技术与自动化装置]