Ali Roostaie1*, Reza Haddad1, Sirwan Mohammadiazar2
1Institute of Police Equipment and Technologies, Policing Sciences and Social Studies Institute, Tehran, Iran
2Department of Chemistry, Islamic Azad University, Sanandaj Branch, Sanandaj, Iran
*Corresponding Author: Ali Roostaie, Institute of Police Equipment and Technologies, Policing Sciences and Social Studies Institute, Tehran, Iran. Tel: 9881886058, Email: [email protected]
Received: June 13, 2022
Published: September 28, 2022
Citation: Roostaie A, et al. (2022). Polybutylene Terephthalate/Ionic Liquid Nanofiber as a New Solid Phase Microextraction Coating. Material Science. 4(2):13.
Copyrights: Roostaie A, et al. © (2022).
In the present work, a new solid phase microextraction fiber coating based on ionic liquid doped polybutylene terephthalate (PBT) were prepared using electrospinning technique on unbreakable wire as a robust substrate. The synthesized PBT and modified PBT nanofibers were characterized by scanning electron microscopy. The results showed that modified PBT nanofibers have higher porosity and smaller diameter of nanofibers relative to non-modified PBT nanofibers. The feasibility of the method was considered using the isolation of selected chlorophenols as model compounds from water samples. The significant parameters of the electrospinning technique including the amount of ionic liquid, concentration of the polymer, electrospinning time and power voltage, and extraction parameters such as the extraction time and temperatures and the concentration of salt were studied and optimized. The developed method is sensitive and fast providing sub ng L-1 detection limits; the limit of detection of 0.75-5 ng L-1 and the limit of quantification of 5-15 ng L-1 with equilibrium time of 15 min were obtained. The linearity of the method was obtained in the range of 15-5000 ng L-1 with R2 >0.9997. The method repeatability at 100, 150, and 250 ng L-1 concentration level, RSD% of 4-10% was obtained. Finally, the proposed method was used to the analysis of real water samples and the relative recovery values were found to be in the range of 84-101%, showing no matrix effect.
Keywords: Modified polybutylene terephthalate, Ionic liquid, chlorophenols, Extraction, Aqueous sample.