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Electroless deposition of silver nanofractals on copper wire by galvanic displacement as a simple technique for preparation of porous solid‐phase microextraction fibers
Author(s) -
Hasanli Fateme,
Bahmaei Manochehr,
Mohammadiazar Sirwan,
Sharif Amir Abdollah Mehrdad
Publication year - 2019
Publication title -
journal of separation science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.72
H-Index - 102
eISSN - 1615-9314
pISSN - 1615-9306
DOI - 10.1002/jssc.201900351
Subject(s) - fiber , solid phase microextraction , anthracene , pyrene , extraction (chemistry) , materials science , naphthalene , detection limit , scanning electron microscope , repeatability , porosity , analytical chemistry (journal) , chromatography , chemistry , composite material , gas chromatography–mass spectrometry , mass spectrometry , organic chemistry
A novel and porous solid‐phase microextraction fiber was prepared by quick and simple galvanic displacement reaction and applied to the determination of some polycyclic aromatic hydrocarbons in sunflower oil. The parameters affecting the porosity and thickness of the fiber, and parameters affecting the extraction efficiency, including the extraction time, temperature, and ionic strength, were investigated and optimized. The morphology of prepared fiber was characterized by optical and scanning electron microscopy and thermal and chemical stabilities of the fiber were studied. Under the optimum conditions, the limits of detection ranged between 0.1 ng/mL for pyrene to 1.2 ng/mL for anthracene, and LOQ ranged between 0.3 ng/mL for pyrene to 3.6 ng/mL for anthracene. The relative standard deviations, including repeatability (within fibers) and reproducibility (between fibers), varied between 3.2–8.9 and 5.6–9.8%, respectively.