Record Display for the EPA National Library Catalog


Main Title High-Performance Liquid Chromatography of Nitrophenols with a Swept-Potential Electrochemical Detector.
Author Scanlon, J. J. ; Flaquer, P. A. ; Robinson, G. W. ; O'Brien, G. E. ; Sturrock, P. E. ;
CORP Author Georgia Inst. of Tech., Atlanta. School of Chemistry.;Environmental Research Lab., Athens, GA.
Year Published 1984
Report Number EPA/600/J-84/358;
Stock Number PB86-164993
Additional Subjects High resolution ; Electrochemistry ; Reprints ; Nitrophenols ; Liquid chromatography ; Electrochemical detector
Library Call Number Additional Info Location Last
NTIS  PB86-164993 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 12p
The advantages of a swept-potential electrochemical detector are demonstrated by application to the high-performance liquid chromatography (h.p.l.c.) of nitrophenols. The primary advantage of the detector is that an additional dimension of information is obtained which can be used to help identify a chromatographic peak and help to resolve overlapping peaks. The detector retains the selectivity of a differential-pulse detector and yet is general enough to minimize the time for development of new procedures and to detect true unknowns. The h.p.l.c. of nitrophenols was studied on C-18 reverse-phase columns, with methanol-acetate buffer mobile phases. Selectivity factors of the mono-nitrophenols are independent of the composition of the mobile phase from pH 3.25 to 6.00 and from 40 to 55% methanol. The selectivity factors of dinitrophenols are highly dependent on pH. Limits of detection depend on many parameters but are approximately 1 ng injected for the nitrophenols.