Rapid Determination of Sulfide in Tannery Wastewater by Flow Injection Spectrophotometry

Abstract:

A simple and rapid spectrophotometric method for flow injection determination of sulfite in tan wastewater is described. It was based on the fade reaction of sulfide ion with Ag (I)- (5-Bromo-2-pyridylazo)-5-diethyl-aminophenol (5-Br-PADAP) in NaAc-HAc medium. The optimum conditions allow a linear calibration range of 0.01-1.10 μg ml^-1 sulfide ion. The detection limit is 0.0043 μg ml-1 (S/N=3), and the relative standard deviation for night replicate measurements is 2.1% for 0.5μg ml^-1 of sulfide ion. The procedure has been applied to the determination of sulfide in tannery wastewater. The results were in good agreement with those obtained by methylene blue spectrophotometric method.

• Periodical: Applied Mechanics and Materials (Volumes 675-677)
• Pages: 310-313
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.675-677.310
• Online since: October 2014
• Authors: Dong Yuan, Da You Fu
• Keywords: Flow Injection Spectrophotometry, Sulfide, Tannery Wastewater

References

[1] X.F. Yang, X.Q. Guo, Y.B. Zhao. Anal. Chim. Acta 456 (2002) 121–128.

[2] J. Ghasemi, D. E. Mohammadi. Microchemical Journal, 71(2002) 1-8.

[3] D Yuan, D.Y. Fu, Z.W. Luo. Applied Mechanics and Materials 295-298 (2013) 950-953.

[4] An Min Xiang, Li Zhou, Cheng Guo Hu, Sheng Shui Hu. Chinese Chemical Letters, 19( 2008), 73-75.

[5] S. Jeon, H. Yeo, H. Jeong, M.O. Jung, K.C. Nam, Electroanalysis 15(2003) 872.

[6] Fernando Maya, José Manuel Estela, Víctor Cerdà. Analytica Chimica Acta 601( 2007)87-94.

[7] S. Lima, R.L. Bonifacio, G.C. Azzellini, C. Nina, Talanta 56 (2002)547.

[8] S. Fujii, T. Takahito, A. Mitsuru, A. Okubo, Anal. Sci. 20 (2004) 209.

[9] Laura Ferrer, Graciela de Armas, Manuel Miró, José Manuel Estela, Víctor Cerdà. Talanta 64(2004) 1119-1126.

[10] I.H.A. Badr, A. Plata, P. Molina, A. Mateo, A. Vidal, L.G. Bachas, Anal. Chim. Acta 388 (1999) 63.