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Liu, X. et al.

Xianli Liu, Shu Tao, Nansheng Deng, Yu Liu, Bingjun Meng, Bei Xue, Guanghong Liu,

Synchronous-scan fluorescence as a selective detection method for sodium dodecylbenzene-sulfonate and pyrene in environmental samples.

Synchronous-scan fluorescence spectra of dodecylbenzene sulfonic acid sodium salt (SDBS) and pyrene in aqueous solution were studied. The concentration ranges of SDBS and pyrene in aqueous solutions were 0.01-10.00 and 0.001-0.050 mg L(-1), respectively. The optimized wavelength differences (Deltalambda) of 46-55 and 38 nm were maintained between excitation and emission wavelengths for SDBS and pyrene, respectively, and they were found to be suitable for effective determination of SDBS and pyrene without mutual interferences; the peaks were observed at lambda(ex) 229-232 nm (SDBS) and lambda(ex) 335 nm (pyrene). Linear relationships between synchronous-scan fluorescence spectroscopy (SFS) intensity and concentration of SDBS or pyrene in aqueous solution (Milli-Q water, river water, and mucus of fish gills) were established. It was demonstrated that SFS method was effective for simultaneous analyses of SDBS and pyrene in mixed solution.[1]

References

Synchronous-scan fluorescence as a selective detection method for sodium dodecylbenzene-sulfonate and pyrene in environmental samples. Liu, X., Tao, S., Deng, N., Liu, Y., Meng, B., Xue, B., Liu, G. Anal. Chim. Acta (2006) [Pubmed]

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