Research Article

Trace Lead Measurement and Online Removal of Matrix Interference in Geosamples by Ion-Exchange Coupled with Flow Injection and Hydride Generation Atomic Fluorescence Spectrometry

Figure 2

Effects of sample acid concentration on chelating reaction between Pb and speed (4 ngm l 1 Pb solution; 180 seconds sample load time; injection speed 3.5 ml m i n 1 ; 10 seconds washing time).
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