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. Author manuscript; available in PMC: 2009 Aug 1.
Published in final edited form as: Anal Chem. 2008 Jun 21;80(15):6114–6118. doi: 10.1021/ac800595p

Figure 2.

Figure 2

Figure 2

Figure 2

ISE response for direct measurements A) in a batch mode in 100 mL sample volumes and B) in a 20 μL flow cell of 0.5 M NaCl and the following added cadmium ion levels: a) no cadmium, b) 5 ppb, c) 10 ppb and d) 50 ppb. C) Corresponding measurements in the 20 μL cell following electrochemical matrix elimination. In all cases, baseline traces are for the 10−2 M Ca(NO3)2 background.