Spectrophotometric Determination of Pt (IV) Using a Schiff Base Derived from substituted Triazole

Abstract

Platinum (IV) forms a bright red coloured complex in acid medium with a Schiff base derived from 3-methyl-4-amino-5-mercapto-1,2,4-triazole and piperonal. The complex absorbs at 400 nm with a molar absorptivity of 4.98 x 10⁴ dm³ mol^–1 cm^–1 and a Sandell's sensitivity of 20.9 ng. cm^–2 Beer's law is valid over the range of 1.8 to 24.0 ppm.