Determination of thiram using gold nanoparticles and Resonance Rayleigh scattering method

Talanta ◽  
2015 ◽  
Vol 141 ◽  
pp. 143-149 ◽  
Author(s):  
Hooshang Parham ◽  
Nahid Pourreza ◽  
Farzaneh Marahel
Keyword(s):  
Gold Nanoparticles ◽  
Rayleigh Scattering ◽  
Resonance Rayleigh Scattering ◽  
Scattering Method

Catalytic Reaction-Nanogold Resonance Rayleigh Scattering Method for the Determination of Trace Tellurium

2013 ◽  
Vol 787 ◽  
pp. 392-395
Author(s):  
Qing Zeng ◽  
Ai Hui Liang ◽  
Wen Qing Yin ◽  
Zhi Liang Jiang
Keyword(s):  
Gold Nanoparticles ◽  
Catalytic Reaction ◽  
Rayleigh Scattering ◽  
Resonance Rayleigh Scattering ◽  
Scattering Method ◽  
Strong Resonance ◽  
Hcl Medium

In 6 mol/L HCl medium, TeO42-is reduced by NaH2PO2to Te that catalyze NaH2PO2reducing HAuCl4to form gold nanoparticles (AuNPs), which exhibited a strong resonance Rayleigh scattering (RRS) peak at 370 nm. With the TeO42-concentration increased, the catalytic reaction enhanced and formed more AuNPs that resulting in the RRS peak increased. Under the chosen conditions, the RRS intensity at 370 nm enhanced linearly with the concentration of TeO42-in the range of 12.5-287.5 nmol/L. This RRS method was sensitivity, selectivity, and simplicity.

Resonance Rayleigh Scattering Method for the Determination of Raloxifene with Evans Blue

2010 ◽  
Vol 20 (12) ◽  
pp. 1552-1556 ◽  
Author(s):  
Li Fan ◽  
Shao-Pu Liu ◽  
Da-Cheng Yang ◽  
Xiao-Li Hu
Keyword(s):  
Evans Blue ◽  
Rayleigh Scattering ◽  
Resonance Rayleigh Scattering ◽  
Scattering Method

scholarly journals A Sensitive Resonance Rayleigh Scattering Method for Na+ Based on Graphene Oxide Nanoribbon Catalysis

2018 ◽  
Vol 2018 ◽  
pp. 1-6 ◽  
Author(s):  
Haidong Wang ◽  
Chongning Li ◽  
Yanghe Luo ◽  
Zhiliang Jiang
Keyword(s):  
Gold Nanoparticles ◽  
Graphene Oxide ◽  
Detection Limit ◽  
Gold Nanoparticle ◽  
Rayleigh Scattering ◽  
Resonance Rayleigh Scattering ◽  
Scattering Method ◽  
Graphene Oxide Nanoribbons ◽  
Potassium Pyroantimonate ◽  
Coordination Reaction

The gold nanoparticle reaction of HAuCl4-H2O2 was very slow under 60°C, and the as-prepared graphene oxide nanoribbons (GONRs) exhibited strong catalysis of the reaction to form gold nanoparticles (AuNP) that appeared a resonance Rayleigh scattering (RRS) peak at 550 nm. Upon addition of potassium pyroantimonate (PA) ligand, it was adsorbed on the GONRs surface to inhibit the catalysis to cause the RRS peak decreasing. When the analyte of Na+ was added, the coordination reaction between PA and Na+ took place to form the stable complexes of [Na2(PA)] to release free GONRs catalyst that resulted in the RRS peak increasing linearly. Accordingly, a new and sensitive RRS method for Na+ was established, with a linear range of 0.69-25.8 nmol/L and a detection limit of 0.35 nmol/L Na+.

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