Research Article

Simultaneous Determination of Cr, As, Se, and Other Trace Metal Elements in Seawater by ICP-MS with Hybrid Simultaneous Preconcentration Combining Iron Hydroxide Coprecipitation and Solid Phase Extraction Using Chelating Resin

Figure 2

Comparison of the recoveries of Cr, As, Se, and other trace metal elements by the hybrid preconcentration with those by single preconcentration using chelating resin.