埼玉県環境科学国際センター機関リポジトリ（個別情報）

■ ID	120
■ 種類	論文
■ タイトル	Simple Measurement of 4,4'-bis(2-sulfostyryl)-biphenyl in River Water by Fluorescence　 Analysis and Its Application as an Indicator of Domestic Wastewater Contamination
■ 著者	高橋基之　 Motoyuki Takahashi 　埼玉県環境科学国際センター　 Kiyoshi Kawamura　埼玉県環境科学国際センター
■ 出版元
■ 出版年	2007
■ 誌名・巻・号・年	Water, Air and Soil Pollution, Vol.180, 39-49, 2007
■ 抄録・要旨	In the fluorescence excitation spectrum measurement of river water samples, a characteristic peak expected to be derived from fluorescent whitening agents (FWAs) was detected. The main causative chemical was 4,4'-bis(2-sulfostyryl)-biphenyl (DSBP), which is commonly contained in household detergents in Japan. The concentrations of DSBP overlapped with fulvic-like organic matter in the spectral fluorescent signature were determined by the newly proposed calculation method, which uses fluorescence intensity at three wavelengths for baseline correction in the fluorescence excitation spectrometric analysis, and proved to have a strong correlation (correlation coefficient: R = 0.992) with those obtained by the high-performance liquid chromatography analysis. The concentrations of DSBP detected in river water samples were 0.28～1.84μg･l-1, and high concentrations were observed in the samples collected at the stations, at whose upstream treated domestic wastewater and untreated gray water (domestic wastewater excluding flush toilet wastewater) flowed into the rivers at relatively high ratios in flow rate. The concentration of DSBP was proved to be useful for rough estimation of the magnitude of domestic wastewater contamination in river water.
■ キーワード	蛍光スペクトル、スペクトル解析、ＤＳＢＰ、FWAs、河川水

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