S. Lartiges et P. Garrigues, DETERMINATION OF ORGANOPHOSPHORUS AND ORGANONITROGEN PESTICIDES IN WATER AND SEDIMENTS BY GC-NPD AND GC-MS, Analusis, 21(3), 1993, pp. 157-165
An analytical procedure has been developed for the determination of or
ganophosphorus (OP) and organonitrogen (ON) compounds in the aquatic e
nvironment (water, sediments). OP and ON were analysed by a gas chroma
tography apparatus (GC) equipped with cool on-column injectors and cou
pled either with a nitrogen-phosphorus detector (NPD) or with a mass s
elective detector (MSD) in electron impact (EI) and positive chemical
ionisation (PCI) modes. Chromatographic retention indexes based on a s
eries of organonitrogen internal standards were defined for GC-NPD in
order to confirm analytes in environmental samples. Atrazine, simazine
and diazinon were identified in surface waters by GC-NPD and GC-MS.