[Polarized immunofluorescent analysis of the herbicide isoproturon]

Polarographic fluoroimmunoassay was developed for estimation of residual amounts of the herbicide isoproturon . The procedure is simple, accurate, highly sensitive and allows 10 preparations to be tested within approximately 7 min; the sample volume was 50 microliters and the low limit of the procedure sensitivity was about 0.2 micrograms/ml. The polarographic immunoassay may be used in screening express controls of isoproturon concentration in the sewage or in various extracts from various sources to control the herbicide contamination.