Comparison of Voltammetric and UV Spectrometric Determination of Selected Aliphatic Phthalates

Abstrakt

Sensitivity of UV spectrometric determination for dibutyl phthalate (DBP), diethyl phthalate (DEP), didecyl phthalate (DDP), and diallyl phthalate (DAP) was compared with voltammetric determination on a hanging mercury drop minielectrode (HMDmE) and a meniscus modified silver solid amalgam electrode (m-AgSAE). UV spectrometry suggests similar sensitivity like differential pulse voltammetry (DPV) on m-AgSAE, both in methanolic media, on micro molar level.

DPV on a hanging mercury drop minielectrode (HMDmE) in 0,1 mol.l-1 tetramethylammonium bromide (TMAB) in methanol was ten times more sensitive.

Klíčová slova

• Dibutyl phthalate
• Diethyl phthalate
• Didecyl phthalate
• Diallyl phthalate
• Differential pulse voltammetry
• Meniscus modified silver solid amalgam electrode
• Hanging mercury drop minielectrode
• UV spectrometry