The paper reported the fluorometric characteristics of sweet potato extraction solution for the determination of Zn2+ ion.The maximum wavelength of excitation and emission of the extraction solution are 369nm and 440n...The paper reported the fluorometric characteristics of sweet potato extraction solution for the determination of Zn2+ ion.The maximum wavelength of excitation and emission of the extraction solution are 369nm and 440nm respectively.The fluorescence of sweet-Lpotato extraction solution is quenched while Zn2+ ion solution is added.The fluorescence intensity(ΔF) exhibits linear with concentration of Zn2+ solution in the range of 2×10-6 to 2×10-2mol·L-1.The present method for the determination of Zn2+ is green,sensitive,and easy.展开更多
文摘The paper reported the fluorometric characteristics of sweet potato extraction solution for the determination of Zn2+ ion.The maximum wavelength of excitation and emission of the extraction solution are 369nm and 440nm respectively.The fluorescence of sweet-Lpotato extraction solution is quenched while Zn2+ ion solution is added.The fluorescence intensity(ΔF) exhibits linear with concentration of Zn2+ solution in the range of 2×10-6 to 2×10-2mol·L-1.The present method for the determination of Zn2+ is green,sensitive,and easy.
基金国家自然科学基金(the National Natural Science Foundation of China under Grant No.60473018)江苏省自然科学基金(the Natural Science Foundation of Jiangsu Province of China under Grant No.BK2004051+1 种基金No.BK2005207)东南大学移动通信国家重点实验室开放课题