第34卷，第2期 2014年2月
光谱学与光谱分析 Spectroscopy and Spectral Analysis
Vol. 34,No.2-pp450-454
February ,2014
Analysis ofDissolved Organic Matters inFuRiver of BaodingUsing
ThreeDimensionalFluorescenceExcitation-EmissionMatrix TANG Jing-mei,LIANG Shu-xuan,SUN Han-wen,LIU Shan,WANGLi-hua
College of Chemistry and Environmental Science , Hebei U niversity ;
Key Laboratory of Analy tical Science and Technology of Hebei Provinee , Baoding071002 , China
Abstract The fluorescence properties of dissolved organic matter (DOM ) in Fu River in Baoding were investi-gated by three-dimensional fluorescence spectrometry . The type , distribution and origin of the DOM were esti-mated on basis of the position , number and intensity of fluorescence peaks in the spectra . Two types of fluo-rescence peaks were detected from Fu River . There are protein-like fluorescence peaks A with Ex /Em= 225~ 230 /340 nm and soluble microbial metabolites peaks B with Ex /Em=275 /340~350 nm . The protein-like fluo-rescence peaks and soluble microbial metabolites peaks were founded in different times and stations in Fu Riv -er . Certain correlation was observed between the fluorescence intensity of DOM and the water quality parame -ters of Fu River . Good correlation of different fluorescence peaks showed the same of source . The fluorescence intensity of the two types had a significant positive relationship with COD , TN , TP and NHs-N concentration , this phenomenon indicating that the fluorescence peaks can speculate the level of pollution of Fu River . These results provided a reference for the pollution control in Fu River .
KeywordsFu River ; Dissolved organic matter ; Excitation-emission matrix fluorescence spectroscopy ; Corre lation
中图分类号：0657.3
Introduction
文献标识码：A
DOI : 10. 3964 /i issn. 1000-0593(2014 )02-0450-06
three-dimensional fluorescence spectroscopy has the advanta -ges of simpleness , rapidness , low detection limit , and high sensitivity . It is widely used for the river DOM research [3.6]
Dissolved organic matter (DOM ) is a heterogeneous mix-ture of aromatic and aliphatic organic compound containing oxygen , nitrogen and sulfur functional groups (e -g -, carbox-yl, phenol, enol, alcohol, carbonyl, amine, and thiol ). The chemical components of DOM relate to their source and affect the fluorescence properties . The fluorescence property is one of the most important optical properties in river [2] . The position , number and intensity of fluorescence peaks in the spectra were analyzed to determine the type , distribution and origin of DOM . Fluorescence fingerprint spectra characterized fluorescence spectrum of DOM in water. Since the 1990s,
Received ; 2013-04-11 , aceepted; 2013-07-15
In recent years , China has gradually ex panded research in this area[7-8] . Fu River is one of the sewage rivers in Baoding city + and the river flows into the lake of Baiyangdian . The water quality of Fu River is directly related to the ecological envi -ronment along the river and the water quality of Baiyangdian . Currently the research on DOM in Fu River has not been re-ported . DOM plays an important role in the water environ-ment , and it will affect the acid-base characteristics of the wa-ter , the effectiveness of nutrients and environmental behavior of pollutants(§] . It also can reflect the degree of pollution for river . Therefore , the present paper studies the characteristics
Foundation Project : The National 12th Five-Year Major Science and Technology Projects on Control and Prevention of Water Pollution
(2012ZX07203-003)
Biography : LIANG Shu-xuan , (1967—), female , professor , engaged in environmental analysis and monitoring studies
Corresponding author
e-mail ; liangsx168@ 126 .com