Potentiometric Stripping Analysis of Cadmium and Lead with Constant Inverse Current in the Analytical Step Using an Open Tubular Mercury-Coated Glassy Carbon Electrode

Table 1

The improvement of the flow PSA relative sensitivity.

Flow PSA mode	f^a
	Cd	Pb
PSA-trp	14	6
PSA-trp-iR	112	24

^aValues of the relative sensitivity increase degree.