Application of a Macrocycle Immobilized Silica Gel Sorbent to Flow Injection On-Line Microcolumn Preconcentration and Separation Coupled with Flame Atomic Absorption Spectrometry for Interference-Free Determination of Trace Lead in Biological and Environmental Samples

1999 ◽  
Vol 71 (19) ◽  
pp. 4216-4222 ◽  
Author(s):  
Xiu-Ping Yan ◽  
Michael Sperling ◽  
Bernhard Welz
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