Automated Online Solid-Phase Extraction Coupled with Sequential Injection-HPLC-EC System for the Determination of Sulfonamides in Shrimp

<table>The manifold diagram of online SPE-HPLC system. SP: syringe pump; SL: selection valve; SW: switching valve (loading position in dot line and injection position in dashed line); HC: holding coil; L: sample loop; SPE: solid-phase extraction.</table>

International Journal of Electrochemistry

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Figure 1

Figure 1: Automated Online Solid-Phase Extraction Coupled with Sequential Injection-HPLC-EC System for the Determination of Sulfonamides in Shrimp 