scholarly journals POLYELECTROLYTE MODIFIED SILICA GEL MICRO-COLUMN SOLID PHASE EXTRACTION FOR THE DETERMINATION OF SILVER IN ENVIRONMENTAL WATER SAMPLES BY FLAME ATOMIC ABSORPTION SPECTROMETRY

2013 ◽  
Vol 58 (4) ◽  
pp. 2182-2185 ◽  
Author(s):  
GUOQIANG XIANG ◽  
LULU LI ◽  
XIUMING JIANG ◽  
LIJUN HE ◽  
LU FAN
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