Journal
MICROCHIMICA ACTA
Volume 186, Issue 12, Pages -Publisher
SPRINGER WIEN
DOI: 10.1007/s00604-019-3851-5
Keywords
Adsorbent; Polycyclic aromatic hydrocarbons; Electrochemical exfoliation; Graphene; Coating; Headspace SPME; Gas chromatography; Real sample; Flame ionization detection
Categories
Funding
- University of Kurdistan
Ask authors/readers for more resources
A graphene coating was prepared through electrochemical exfoliation of pencil graphite and then used as a fiber coating for headspace solid-phase microextraction of polycyclic aromatic hydrocarbons (PAHs) from water samples by GC analysis technique with flame ionization detector since flame ionization detector work according to the principle of ions released in the combustion of the sample species if there are any organic compounds. The graphene layers were produced by applying an anodic voltage of +2 V to the pencil graphite electrode in 1 M sulfuric acid solution as an electrolyte. The adsorbent was characterized by using scanning electron microscopy. Following thermal desorption, the PAHs (specfically naphthalene, acenaphthene, fullerene, phenanthrene, anthracene and fluoranthene) were quantified by GC. Under optimum conditions (extraction temperature, 65 degrees C; extraction time, 35 min; salt concentration of 20% w/v; desorption temperature, 260 degrees C; desorption time, 5 min), the limits of detection range between 10 and 90 ng L-1, and the linear ranges extend from 0.05-50 mu g L-1. The repeatability of the extraction process and the fiber-to-fiber reproducibility were in the ranges of 4.3-0.2% and 7.3-9.8%, respectively.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available