Chromatography and Spectroscopy Techniques

Research Article Pages 69-76

Phosphate Determination in Aqueous Samples by Complex Formation with Rhodamine B

Authors: Carolyn Gregory G, Darshani Kumaragamage, Srimathie Indraratne, Douglas Craig B and Douglas Goltz M

Abstract: In this study novel approaches for determining trace levels of phosphate in aqueous pore water solutions are described. Phosphate in aqueous samples (freshwater, drinking water, soil pore water) forms an aggregate compound with molybdate and Rhodamine B in 1M HCl. Incident light directed at the Rhodamine B molybdo-phosphate aggregate follows a second order light scattering behaviour.

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