Preparation of a novel fluorescence nanoparticles and its application in the determination of Hg(II).
The strong fluorescence 2-vinylnaphthalene and acrylic acid polymer nanoparticles have been prepared under ultrasonic radiation. Based on the fluorescence quenching of polymer by Hg(II), a method for the selective determination of Hg(II) was developed. The reaction conditions between Hg(II) and polymer were investigated in detail. The assay is very few interference stable fluorescence signals (at least 2h), simple instrument (common spectrofluorometer) and simple step. Under optimal experimental conditions, a limit of detection of 0.01 microg ml(-1) was achieved. The calibration curve was linear over the concentration range 0.04-0.1 microg ml(-1) with a correlation coefficient of 0.9927. The proposed method has been applied to the selective quantification of Hg(II) in synthetic samples with the satisfactory results.
Wang
Lun
L
College of Chemistry and Materials Science, Anhui Key Laboratory of Functional Molecular Solids, Anhui Normal University, Wuhu 241000, China. wanglun@mail.ahnu.edu.cn
Dong
Ling
L
Bian
Gui-Rong
GR
Xia
Ting-Ting
TT
D003102:Colloids; D006863:Hydrogen-Ion Concentration; D007202:Indicators and Reagents; D008628:Mercury / Q000032:analysis*; D012680:Sensitivity and Specificity; D012965:Sodium Chloride; D013050:Spectrometry, Fluorescence
D003102:Colloids; D007202:Indicators and Reagents; D012965:Sodium Chloride; D008628:Mercury