METHOD AND DEVICE FOR DETECTION OF HEAVY METALS IN WATER USING DYE NANO-COMPLEXANTS AND A POLYMERIC FILM

摘要

The present invention relates to a kit, device and method for detection of metals in aqueous media. The invention is based on complexation reactions of organic azo-dyes with heavy metals, utilizing a specially designed polymeric film matrix to which an organic azo-dye and an organic solvent are added. When submerged in water contaminated with heavy metals, the polymeric film changes its color. The azo-dyes are injected into the tested water, resulting in formation of nano-particles of insoluble complexes. The polymeric film embeds and dissolves these nano-particles and thus allows for spectral and/or visual analysis.

主权项

1. A method for detecting metals in an aqueous medium, the method comprising the steps of:
(a) contacting a test aqueous medium comprising an organic dye with a polymeric film comprising an organic solvent and said organic dye; and (b) detecting the presence of metals in said aqueous medium by visual inspection and/or by spectral analysis of the polymeric film.