Preconcentration of copper with multi-walled carbon nanotubes pretreated by potassium permanganate cartridge for solid phase extraction prior to flame atomic absorption spectrometry

2007 ◽  
Vol 18 (6) ◽  
pp. 714-717 ◽  
Author(s):  
Jun Ping Xiao ◽  
Qing Xiang Zhou ◽  
Hua Hua Bai
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