Zhang, Jia Role of Tris on the colorimetric recognition of anions with melamine-modified gold nanoparticle probe and the visual detection of sulfite and hypochlorite / Jia Zhang, Xiaowen Xu and Xiurong Yang YA2012 M11 Tris-hydrogen chloride; Spectroscopic; Fluorometric; Sulfite sensor Source: Analyst 137 (15) 2012 : 3437-3440 0003-2654