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A rapid, simple and versatile analytical technique based on galvanio stripping has been proposed. In this technique, metal ions are preconcentrated onto a mercury film coated glassy carbon electrode (MFGCE). The amal-gamated metals are re-oxidized by galvanic stripping without the aid of any external electrical field or oxidant in solution. The development and relative advantages that can acorue by the utilization of this technique are discussed.

A galvanic stripping analysis procedure is described for the trace determination of gallium. This determination involves (i) pre-concentration of gallium onto mercury film coated glassy carbon electrode and (ii) re-oxidation in open circuit position by advantageously utilizing the localized galvanic couple formation (in the absence of external electrical field or oxidant in solution). The details of the development of such a procedure for the determination of 7–700 ppb of gallium are discussed.