Use of 4-(2-pyridylazo)resocinol or 2-(2-pyridylazo)-5-dimethylaminophenol as chelating agent for determination of cadmium in seawater by atomic absorption spectrometry with on-line flow-injection sorbent extraction

1998 ◽  
Vol 376 (3) ◽  
pp. 305-311 ◽  
Author(s):  
Pi-Guey Su ◽  
Shang-Da Huang
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