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. Author manuscript; available in PMC: 2010 Jun 11.
Published in final edited form as: J Am Chem Soc. 2006 Jun 28;128(25):8154–8155. doi: 10.1021/ja0625780

Figure 2.

Figure 2

Detail of the 3-µL measuring cell. The indicator electrode (left) and sodium-selective pseudo-reference electrode (right) are inserted into a 1-mm i.d. silicone tube and placed in contact with the aqueous sample plug.