Fluorescence excitation-emission matrix characterization of some sewage-impacted rivers
Fluorescence excitation-emission matrix characterization of some sewage-impacted rivers
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DOI：
10.1021/es000177t
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发表时间：
2001-03-01
影响因子：
11.4
通讯作者：
Baker, A
中科院分区：
文献类型：
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作者：
Baker, A
荧光激发-发射矩阵（EEM）分光光度法应用于10个样本点，在英格兰东北部的6条河流，其中一些受到不利影响的污水处理厂（STW）的排放，目的是调查是否STW排放有一个显着不同的荧光签名。上游，下游，和STW排放样品的两个污水处理厂表明，处理后的污水有一个独特的荧光EEM，高色氨酸和富里酸类荧光强度的比例大致相等。这种特征可以在下游样品中看到。当所有10个样本位置进行比较，两个趋势线是明显的STW影响河流：绘制单独从其他样本位置。将荧光EEM特征与254 nm处的吸收进行比较，并证明其提供了受污水影响的水的更好指纹。有人建议，荧光EEM分光光度法可以提供一个有用的工具，用于分析的抓斗样品采取浴常规和调查监测，并有潜在的在线监测STW对河流系统的影响。
Fluorescence excitation-emission matrix (EEM) spectrophotometry was applied to 10 sample sites in six rivers in northeastern England, some of which were adversely impacted by sewage treatment works (STW) discharges, with the aim to investigate whether STW discharge has a significantly distinct fluorescence signature. Upstream, downstream, and STW discharge samples for two STWs demonstrated that treated sewage has a distinct fluorescence EEM, with high tryptophan and fulvic-like fluorescence intensities that are of approximately equal ratio. This signature could be seen in downstream samples. When all 10 sample locations were compared, two trend lines were apparent where STW impacted rivers:plotted separately from the other sample locations. Fluorescence EEM signatures were compared to absorption at 254 nm and demonstrated to provide a better fingerprint of sewage-impacted water. It is suggested that fluorescence EEM spectrophotometry can provide a useful tool for the analysis of grab samples taken for bath routine and investigative monitoring and has the potential for on-line monitoring of STW impacts on river systems.