摘要
讨论了一种自然水体中有机物的快速诊断分析方法。介绍了总荧光光谱(TLS)和特征光谱荧光标记(SFS)技术;以激光诱导荧光(LIF)方法测量了水体的总荧光光谱,利用特征光谱荧光标记技术对水体中溶解有机物(DOM)及叶绿素a(Chla)进行了分析,并给出了不同浓度腐殖酸的归一化荧光强度与浓度的关系曲线.结果表明,利用特征光谱荧光标记技术对水体总荧光光谱的分析,可以进行水体污染物的快速、实时和在线监测。
An analytical method of fast diagnosing organic matter in water is discussed. The concepts of total luminescence spectroscopy (TLS) and spectral fluorescent signature (SFS) technique are introduced. The total luminescence spectroscopy of water samples in combination with laser induced fluorescence (LIF) measurements using 532 nm wavelength excitation source are measured in the laboratory, and the spectral characteristics of dissolved organic matter (DOM) and chlorophyll a (Chl a) are analysed with spectral fluorescent signature technique. The curve of normalized fluorescence intensity against corresponding concentration of humic acid is showed. The possibilities of water quality monitoring in real time and on line based upon spectral fluorescent signature technique are discussed.
出处
《光学学报》
EI
CAS
CSCD
北大核心
2005年第5期687-690,共4页
Acta Optica Sinica
基金
中国科学院知识创新工程方向性项目(KGCX2-SW-111)资助课题。
