Gold nanoparticles-based colorimetric determination of cationic surfactants in environmental water samples via both electrostatic and hydrophobic interactions

2015 ◽  
Vol 183 (2) ◽  
pp. 827-836 ◽  
Author(s):  
Kamlesh Shrivas ◽  
Swapan Sahu ◽  
Anupam Ghorai ◽  
Ravi Shankar
Keyword(s):  
Gold Nanoparticles ◽  
Water Samples ◽  
Cationic Surfactants ◽  
Hydrophobic Interactions ◽  
Environmental Water ◽  
Environmental Water Samples ◽  
Colorimetric Determination ◽  
Electrostatic And Hydrophobic Interactions

Spectral properties of 4-(4-hydroxy-1-naphthylazo)benzenesulfonic acid and its application for colorimetric determination of trace Fe3+

RSC Advances ◽  
2014 ◽  
Vol 4 (37) ◽  
pp. 19370-19374 ◽  
Author(s):  
Lei Hu ◽  
Li Nie ◽  
Guangnian Xu ◽  
Han Shi ◽  
Xiaoqing Xu ◽  
...  
Keyword(s):  
Mechanism Of Action ◽  
Water Samples ◽  
Spectral Properties ◽  
Environmental Water ◽  
Environmental Water Samples ◽  
Colorimetric Determination ◽  
Benzenesulfonic Acid

A multifunctional dye, 4-(4-hydroxy-1-naphthylazo)benzenesulfonic acid was identified and synthesized and used to determine trace Fe3+ in three real environmental water samples. The mechanism of action between the dye and Fe3+ ion is discussed in detail.

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