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

<table>Diagram of the flow system used to preconcentration and determination of lead by ion-exchange coupled with HG-AFS, (a) the sample load process and (b) the elution process.<svg height="10.625" id="M9" style="vertical-align:-0.12538pt" version="1.1" viewbox="0 0 20.825001 10.625" width="20.825001" xmlns="http://www.w3.org/2000/svg">
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</svg>, <svg height="10.475" id="M10" style="vertical-align:-0.0pt" version="1.1" viewbox="0 0 8.8249998 10.475" width="8.8249998" xmlns="http://www.w3.org/2000/svg">
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</svg>b and, <svg height="10.625" id="M11" style="vertical-align:-0.12538pt" version="1.1" viewbox="0 0 15.775 10.625" width="15.775" xmlns="http://www.w3.org/2000/svg">
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</svg>, peristaltic pumps; V, 8 channel rotary injection valve; S, sample; a and b, microcolumns; T, T-tube; W, waste.</table>

Journal of Analytical Methods in Chemistry

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Figure 1

Figure 1: 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 1 | Trace Lead Measurement and Online Removal of Matrix Interference in Geosamples by Ion-Exchange Coupled with Flow Injection and Hydride Generation Atomic Fluorescence Spectrometry 