On-line coupling of solid-phase extraction of phenols on porous graphitic carbon and LC separation on C18 silica gel column via subcritical water desorption

An approach to the on-line coupling of solid-phase extraction on porous graphitic carbon (PGC) column and high performance liquid chromatography (HPLC) separation on octadecyl silica column is proposed. The approach includes extraction of phenols from 10 ml of water sample on PGC column; desorption...

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Bibliographic Details
Published in:Separation science and technology 2016-08, Vol.51 (12), p.1979-1985
Main Authors: Borisova, Dina Rashidovna, Statkus, Mikhail Alexandrovich, Tsysin, Grigory Il'yich, Zolotov, Yury Alexandrovich
Format: Article
Language:English
Subjects:
Carbon
Coupling
Desorption
Extraction
High performance liquid chromatography
Liquid chromatography
Phenols
porous graphitic carbon
Separation
Silica gel
solid-phase extraction
subcritical water
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Summary:An approach to the on-line coupling of solid-phase extraction on porous graphitic carbon (PGC) column and high performance liquid chromatography (HPLC) separation on octadecyl silica column is proposed. The approach includes extraction of phenols from 10 ml of water sample on PGC column; desorption with subcritical water at 175°C, injection of the eluate to the HPLC column and separation at ambient temperature with acetonitrile-water eluent. Limits of detection for UV detection of phenols were 1-5 μg l −1 , and analyte peaks were 20-50% narrower than for direct injection of 20 μl of sample.
ISSN:0149-6395
1520-5754
DOI:10.1080/01496395.2016.1199571