THE EFFECT OF TEMPERATURE ON THE MIGRASION AMOUNT OF PHTHALATE ESTERS IN SHOE SOLES

Koyuncu İ., Kaya D.

International Aegean Conferences-XI , İzmir, Türkiye, 4 - 06 Nisan 2025, ss.57, (Özet Bildiri)

  • Yayın Türü: Bildiri / Özet Bildiri
  • Basıldığı Şehir: İzmir
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.57
  • Yıldız Teknik Üniversitesi Adresli: Evet

Özet

Nowadays, studies on the effects of endocrine disrupting chemicals on the environment and humans are quite popular. One of these substances is phthalates. Phthalates are one of the auxiliary chemicals used in plastics. They are used in the industry to add flexibility to plastics and as color and odor fixers in most personal care products. Phthalates are among the carcinogens and endocrine disruptors. Phthalates, which are banned by regulations and inspected in end-user products, have been frequently mentioned recently, especially for their effects on the reproductive system.

In this study, it was aimed to investigate the decrease in the amount of phthalates in samples at ppm level as a result of the separation of phthalates from plastic to which they are physically bonded depending on temperature (t) and time (T). LC-MS/MS device was used to quantitatively examine the results. Samples were prepared by QuEChERS (Quick Easy Cheap Effective Rugged Safe) method. Nineteen different phthalate esters were searched in the study. These esters are DIDP, DINP, DEHP, DNOP, DHEP, DIHP, DHP, BBP, DMEP, DIBP, DBP, DNP, DIOP, DIHxP, DCHP, DPrP, DEP, DMP, DBEP. Standards were added to the model solution and prepared using the QuEChERS kit. Within the scope of the study, the limit of detection (LOD) values ​​were found between 0.06 - 0.32 mg/L, and the limit of quantification (LOQ) was found between 0.2 - 0.97 mg/L. In the recovery study, the recovery amounts were found between 80 - 110%. The relative standard deviation for repeatability was between 3.6 - 8.8%. The developed method was applied to a phthalate positive plastic sample (shoe sole). The changes in phthalates with respect to temperature and time were examined.