title: A simple and sensitive fluorescence quenching method for the determination of H(2)O(2) using Rhodamine B and FE(3)O(4) nanocatalyst.
abstract: In pH 1.99 sodium acetate-HCl buffer solutions at 60 °C, Rhodamine B exhibited a strong fluorescence peak at 584 nm using an excitation wavelength of 548 nm. The fluorescence quenching occurred when Fe(3)O(4) nanoparticles catalyzed H(2)O(2) oxidation of Rhodamine B. Under the chosen conditions, the fluorescence intensity at 584 nm decreased when the concentration of H(2)O(2) increased. The fluorescence quenching intensity is linear with the concentration of H(2)O(2) in the range of 10-200 nmol/L. Thus, a new and simple and sensitive nanocatalytic fluorescence method was proposed for the determination of H(2)O(2) in synthetic sample, with satisfactory results.
authors: Key Laboratory of Ecology of Rare and Endangered Species and Environmental Conservation of Education Ministry, Guangxi Key Laboratory of Environmental Engineering and Protection and Assessment, Guangxi Normal University, Guilin 541004, China. zljiang@mailbox.gxnu.edu.cn
authors: Zhiliang
authors: Z
authors: Jiang
authors: Li
authors: L
authors: Kun
authors: Huixiang
authors: H
authors: Ouyang
authors: Aihui
authors: A
authors: Liang
authors: Hesheng
authors: H
authors: Jiang
references: Se Pu. 2005 Jul;23(4):366-9
references: 16250444
references: Anal Chem. 2010 Dec 15;82(24):10164-71
references: 21082777
references: Sheng Wu Gong Cheng Xue Bao. 2009 Dec;25(12):1976-82
references: 20352977
references: Guang Pu Xue Yu Guang Pu Fen Xi. 2005 Aug;25(8):1286-8
references: 16329502
references: Antioxid Redox Signal. 2008 Sep;10(9):1527-48
references: 18498226
references: Nat Nanotechnol. 2007 Sep;2(9):577-83
references: 18654371
references: Guang Pu Xue Yu Guang Pu Fen Xi. 2009 Jul;29(7):1990-2
references: 19798989
references: Environ Sci Technol. 2006 Jul 1;40(13):4286-91
references: 16856748
references: Guang Pu Xue Yu Guang Pu Fen Xi. 2007 Jan;27(1):120-2
references: 17390665
references: Talanta. 2011 Feb 15;83(5):1780-3
references: 21238784
references: Anal Chim Acta. 2007 Feb 12;584(1):122-8
references: 17386594
references: J Pharm Biomed Anal. 1998 Oct;18(1-2):105-16
references: 9863948
references: Analyst. 2011 Apr 7;136(7):1351-6
references: 21305084