Use of Hg-Electroplated-Pt Ultramicroelectrode for Determining Elemental Sulphur in Naphtha Samples

Figure 1

Photographs obtained via optical microscopy (magnified 2500 times) of the mercury film electroplating on the Pt-UME surface in mercurous solution at −0.1 V versus Ag/AgCl in 2D and 3D; deposition times were (a) 5 s, (b) 25 s, and (c) 300 s.

(a)

(b)

(c)