D. Danalatos et S. Glavas, IMPROVEMENT IN THE USE OF CAPILLARY COLUMNS FOR AMBIENT AIR PEROXYACETYL NITRATE MONITORING, Journal of chromatography, 786(2), 1997, pp. 361-365
Citations number
9
Categorie Soggetti
Chemistry Analytical","Biochemical Research Methods
The use of the HP-1 wide bore capillary column for the ambient monitor
ing of peroxyacetyl nitrate (PAN) was found to be limited by the prese
nce of a coeluting peak when the oven temperature was at 30 degrees C.
Lowering the oven temperature to 10 degrees C yielded baseline resolu
tion of the two peaks, in addition it increased the sensitivity in the
detection of PAN by an average 55%. Lower oven temperatures in the ra
nge of -50 degrees C during sample loading and initial analysis time,
offered very increased sensitivity for PAN but the method lacks linear
response; however at these conditions with the same chromatogram one
can determine nitrogenous constituents of air as well as chlorofluoron
ated compounds. (C) 1997 Elsevier Science B.V.