Assay of Aliphatic Phthalates in Polymer Products by Sensitive Polarographic Method: Health and Environmental Issue

  • Munawar Saeed National Center of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, 76080, Pakistan
  • Siraj uddin National Center of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, 76080, Pakistan
  • Abdul Niaz University of Science and Technology, Bannu, NWFP, Pakistan
  • Afzal shah University of Science and Technology, Bannu, NWFP, Pakistan
  • Abdul rauf National Center of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, 76080, Pakistan
  • Jiri Barek Department of Analytical Chemistry, UNESCO, Laboratory of Environmental Electrochemistry, Charles University Albertov 6, CZ 12843 Prague, Czech Republic

Abstract

A faster, simpler and sensitive method was developed for determination of aliphatic phthalates using differential pulse polarography (DPP) as standard technique. The choice and concentration of base electrolyte, solvent, initial potential, effect of water addition and interference by other phthalates were the main parameters to optimize for enhancement of peak current and to obtain well-defined polarogram with lower background current using  1.3 x 10-4 M di-butyl phthalate (DBP) solution. Best results were obtained in the presence of tetra methyl ammonium bromide (TMAB) as electrolyte in methanol solvent with initial potential, -1.4 V. A linear calibration plot was observed in the range of 3 x 10-7 – 1.6 x 10-4 M DBP solution as aliphatic phthalates with lower detection limit of 5.9 x 10-8 M and linear regression coefficient of 0.9987. The developed polarographic method was successfully applied for analysis of aliphtaic phthalates in various samples of locally available polymer products such as baby toys, nipples, teethers, infusion blood bags and shopping bags. The results of the current method were compared with those obtained by a reported method and good agreement was found between them

Published
Jun 1, 2010
How to Cite
SAEED, Munawar et al. Assay of Aliphatic Phthalates in Polymer Products by Sensitive Polarographic Method: Health and Environmental Issue. Pakistan Journal of Analytical & Environmental Chemistry, [S.l.], v. 11, n. 1, p. 7, june 2010. ISSN 2221-5255. Available at: <http://pjaec.pk/index.php/pjaec/article/view/50>. Date accessed: 20 sep. 2018.