Determination of Cr(III) and Cr(VI) in environmental waters by derivative flame atomic absorption spectrometry using flow injection on-line preconcentration with double-microcolumn adsorption

2004 ◽  
Vol 1 (1) ◽  
pp. 40-46 ◽  
Author(s):  
H. -W. Sun ◽  
W. -J. Kang ◽  
J. Ha ◽  
S. -X. Liang ◽  
S. -G. Shen
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