Figure 3
From: A Novel Biosorbent for Preconcentrations of Co(II) and Hg(II) in Real Samples

Effect of reusage of SPE column on the preconcentrations of Co(II) and Hg(II).
From: A Novel Biosorbent for Preconcentrations of Co(II) and Hg(II) in Real Samples
Effect of reusage of SPE column on the preconcentrations of Co(II) and Hg(II).