Solid State Science and Technology, Vol. 17, No 2 (2009) 158-166

ISSN 0128-7389

Corresponding Author:



Nurul Izrini Ikhsan, W. Mahmood Mat Yunus,

Zainal Abidin Talib and Zaidan Abdul Wahab

Applied Optics Laboratory, Department of Physics, Faculty of Science

Universiti Putra Malaysia, 43400 UPM Serdang, Selangor



Surface plasmon resonance technique has been utilized as a sensitive optical sensor for detection of dye molecule in water. Three dye solutions were chosen for this study, such as methylene blue, rhodamine B and rhodamine 6G. All samples were prepared by dissolving dye powder in distilled water and the solution was diluted several times to produce sample solutions in the range of 0.001 to 0.01 mol/L. The shift of SPR angle (spr) was monitored and characterized as sensor sensitivity and responsivity. The kinetic behaviour of the dye molecules was also discussed.




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