| abstract |
The present invention relates to a method for detecting Cr (III) using methionine, and more particularly to a method for detecting Cr (III) using methionine, wherein Cr (III) ion contained in a sample such as water is first reacted with methionine, (III) -methionine complex binds to gold nanoparticles and agglomerates the gold nanoparticles. Cr (III) ions contained in the sample are detected by a colorimetric method, a UV-vis absorbance method or a surface enhanced Raman scattering (SERS) Detection limit can be detected, and Cr (III) contained in distilled water, tap water, river water and seawater can be selectively and easily detected without the influence of disturbing ions. |