Pectic acid–graphene oxide nanocomposite as an adsorbent in vortex-assisted dispersive solid-phase extraction for preconcentration of copper ion followed by flame atomic absorption spectrometry

2019 ◽  
Vol 77 (6) ◽  
pp. 2821-2836 ◽  
Author(s):  
Ali Eftekhari ◽  
Mahyar Shakerian ◽  
Hayder Jihad Majeed ◽  
Mohammad Eftekhari ◽  
Najmeh Rezazadeh
2015 ◽  
Vol 7 (5) ◽  
pp. 2093-2099 ◽  
Author(s):  
Wei Xiong ◽  
Chunsheng Cheng ◽  
Yaling Yang

A method to separate and preconcentrate trace levels of chromium using silver nanoparticle (Ag NP) technology and suspension dispersive solid phase extraction is proposed.


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