Resonance scattering spectral analysis of chlorides based on the formation of (AgCl)n(Ag)s nanoparticle.
A novel resonance scattering spectral method has been proposed for the determination of trace amounts of chlorides in the range of 2 x 10(-7)-8 x 10(-6) mol/l. It was based on the photochemical reaction system of AgNO3-NaCl-sodium oxalic to form the (AgCl)nucleus (n)(Ag)shell (s) nanoparticle. There is a strongest resonance scattering peak at 470 nm and a maximum absorption peak at 425 nm. The concentration of chlorides is proportional to the intensity of resonance scattering at 470 nm. The nonlinear resonance scattering peaks of the nanoparticle system have been also considered, according to the theory of the interaction between the surface electron of nanoparticle and the incidence photon.
Jiang
Zhiliang
Z
Department of Resource and Environmental Science, Guangxi Normal University, Guilin, PR China. zljiang@gl.gx.cninfo.net
Liu
Qingye
Q
Liu
Shaopu
S
D002712:Chlorides / Q000032:analysis / Q000737:chemistry*; D008027:Light; D010316:Particle Size; D012542:Scattering, Radiation; D018030:Silver Compounds / Q000032:analysis / Q000737:chemistry*; D013057:Spectrum Analysis; D014873:Water Pollutants / Q000032:analysis
D002712:Chlorides; D018030:Silver Compounds; D014873:Water Pollutants; C037548:silver chloride