ISI Papers With Our Products
Title: Spin-column micro-solid phase extraction of phthalate esters using electrospun polyacrylonitrile/iron (III)/Mg-based metal-organic framework 88B followed by GC analysis
Journal: Microchemical Journal
Author: Farshad Giyahban , Shima Amini , Homeira Ebrahimzadeh, Saeed Hejabri Kandeh
Year: 2021
Address: Department of Analytical Chemistry and Pollutants, Faculty of Chemistry and Petroleum Sciences, Shahid Beheshti University, Tehran, Iran
Abstract: An electrospun composite polyacrylonitrile/iron (III)/Mg-based metal–organic framework 88B (PAN/Fe/Mg-
MIL-88B) was prepared, and then utilized as a viable sorbent for the simultaneous determination of five
phthalate esters in store-bought bottled mineral water and orange juice, urine, plasma, and two different types of
cream and lipstick applying spin column micro solid-phase extraction (SC-μSPE) method. The synthesis of the
electrospun nanofibers was surveyed using energy-dispersive X-ray spectroscopy, X-ray diffraction analysis and
Fourier transform infrared spectroscopy, while the morphology of the composite was investigated using field
emission scanning electron microscopy. The presence of Fe/Mg-MIL-88B with high quantity of functional groups
and porous structure in the polymer matrix endows the PAN nanofibers with high extraction efficiency. The
effect of MOF% in the composite nanofibers, amount of sorbent, sample pH, type and volume of desorption
solvent, salt concentration, number of cycles, and centrifugation speed were optimized. Under the optimal
conditions, the calibration plots for dimethyl phthalate (DMP), diethyl phthalate (DEP), and diallyl phthalate
(DAP) were linear within the range of 1.0–1000.0 ng mL 1; and 0.5–1000.0 ng mL 1 for diisobutyl phthalate
(DIBP) and dibutyl phthalate (DBP). The limits of detection were lower than 0.30 ng mL 1 for DMP, DEP, and
DAP and 0.15 ng mL 1 for DIBP and DBP by GC-FID. The data related to the relative standard deviations were in
the range of 4.1%–6.3% (intra-day, n = 5) and 6.4%–7.9% (inter-day, n = 3) in the span of three days. Finally,
the applicability of the method was scrutinized for the quantification of analytes of interest in spiked samples,
and satisfactory recoveries were attained within the range of 84.8–102.8%.
Keywords: Electrospun nanofibers, Composite nanofibers, Spin column extraction, Sample pretreatment, Metal-organic framework, Phthalate esters
Application: Extraction
Product Model 1: Syringe Pump (SP1000HPM)
Product Model 2: High Voltage Power Supply (HV50POV)
URL: #https://www.sciencedirect.com/science/article/abs/pii/S0026265X21007207#