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. Author manuscript; available in PMC: 2008 Mar 5.
Published in final edited form as: Anal Chem. 2008 Jan 10;80(3):707–712. doi: 10.1021/ac701910r

Figure 2.

Figure 2

Calibration curves of Cd2+-selective micropipet electrodes in (A) in 150-μL microwells used in the final bioassay and (B) in large, 100-mL sample volumes. Horizontal dotted lines: lower detection limit according to IUPAC definition. Error bars are 90% confidence intervals in different microwells of the same composition, N = 8.