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. Author manuscript; available in PMC: 2006 Apr 16.
Published in final edited form as: J Sep Sci. 2005 Dec;28(18):2540–2545. doi: 10.1002/jssc.200500167

Figure 1.

Figure 1

Diagram of the (a) etched and (b) standard end-column amperometric detectors. The etched detector consists of a flame-etched 30-μm diameter microelectrode with a 10-μm tip positioned inside the etched detection end of the capillary. The detection end of the capillary is etched to create a capillary outlet with a length of 55 μm and a diameter at its tip of approximately 40 μm. The standard detector consists of a 5-μm diameter microelectrode positioned just inside the detection end of the capillary. The detection end of the capillary is etched to create a capillary outlet with a length of 250 μm and a diameter at its tip of approximately 40 μm.