Sirirat Panich

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An ultrasensitive assay for the detection of Pb(II) has been developed using whispering gallery mode (WGM) sensing. In this technique a photonic microcavity was decorated with glutathione (GSH)-modified gold nanoparticles (Au NPs). The resonator was functionalized using an aminosilane to promote adhesion of the GSH-modified NPs creating a highly sensitive(More)
A new and simple spectrophotometric method has been developed and validated for measuring the contamination of melamine in different milk products. The method is based upon measuring the absorption of the complex formed from melamine, 4-hydroxyacetophenone (Hap) and 1-pyrene carboxaldehyde (Pcd), which was adapted from the Mannich reaction. Quantitative(More)
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