1. 上海应用技术学院化学与环境工程学院，上海 201418 2. 赣南师范学院，江西 赣州 341000 3. Regenia AB, Stockholm 10691, Sweden
Effect of REAu on Silver Staining Results and Their UV-Vis Absorption Spectra
LIU Xiao-zhen1, FENG Jun-liang1, LIU Xiao-zhou2, CHEN Jie3, ZHU Wan-wan1, GUI Xiu-min1
1. School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, China 2. Gannan Normal University, Ganzhou 341000, China 3. Regenia AB, Stockholm 10691, Sweden
Abstract：La, Ce, Nd, Sm, Eu, Gd, Dy particles and gold nanoparticles were prepared. Effects of La-Au, Ce-Au, Nd-Au, Sm-Au, Eu-Au, Gd-Au and Dy-Au particles on silver staining results were studied, respectively, and UV-Vis absorption spectra of La-Au, Ce-Au, Nd-Au, Sm-Au, Eu-Au, Gd-Au and Dy-Au particles were studied. Times and colors of sports with La-Au, Ce-Au, Nd-Au, Sm-Au, Eu-Au, Gd-Au, Dy-Au particles are longer and darker than that of with gold nanoparticles, respectively. The time of sport with Nd-Au particles is as long as 30 min, which is 2.7 times as long as with gold nanoparticles. Although amount of gold nanoparticles reduced 80%, the color of sport with Nd-Au particles is darker than that of with gold nanoparticles. In 200.00～800.00 nm, La, Ce, Nd, Sm, Eu, Gd, Dy particles and gold nanoparticles has one absorption peak, respectively, and λmax is 275, 277, 276, 276, 278, 277, 278 and 521 nm, respectively. La-Au, Ce-Au, Nd-Au, Sm-Au, Eu-Au, Gd-Au, Dy-Au particles have two absorption peaks, respectively, λmax(RE) and λmax(Au) are 276 and 522 nm, 276 and 522 nm, 276 and 523 nm, 276 and 523 nm, 276 and 522 nm, 276 and 522 nm, 276 and 523 nm, respectively. λmax of Au nanoparticles and La particles occurs red moving respectively, and λmax of Ce, Eu, Gd and Dy particles occurs blue moving, respectively, and λmax of Nd and Sm particles is constant respectively. Rare earths particles and gold nanoparticles may have interaction, respectively.
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