S. Guenu et Mc. Hennion, ONLINE SAMPLE HANDLING OF WATER-SOLUBLE ORGANIC POLLUTANTS IN AQUEOUSSAMPLES USING POROUS GRAPHITIC CARBON, Journal of chromatography, 665(2), 1994, pp. 243-251
An on-line technique coupling preconcentration via a precolumn packed
with porous graphitic carbon (PGC) and liquid chromatography with a PG
C analytical column was investigated and found to be a very simple and
efficient system for the trace-level determination of some very polar
and water-soluble organic pollutants (characterized by logarithms of
their water-octanol partition coefficients below 1) from environmental
waters. As these analytes are much more retained by PGC than they are
by C-18 silica, preconcentration on a PGC precolumn cannot be coupled
on-line with the widely used and more efficient C-18 silica analytica
l columns, but with a PGC analytical column. Applications are presente
d for the trace-level determination of some organic compounds included
in the EEC environmental priority pollutant list such as 2-chloro-4-a
minophenol, chloroanilines, aminophenols and cyanuric acid. The influe
nce of the sample matrix was investigated with drinking and river wate
r samples.