ABSTRACT

Micellar extraction followed by liquid chromatography and fluorescence detection has been used to determine ppt of polyaromatic hydrocarbons in non saline waters [1,2].

8.1.2 Sewage effluents

8.1.2.1 S o d i u m - N - m e t h y l d i t h i o c a r b a m a t e and m e t h y l i s o t h i o c y a n a t e

A high performance liquid chromatographic procedure has been described [3] for the simultaneous determination of the fungicides sodium-N-methyldithiocarbamate and methylisothiocyanate in surface waters and in sewage, based on their separation on a reversed phase column with a miscellar mobile phase (hexadecyltrimethylammonium bromide) in 1:1 v / v methanol:water buffered to pH6.8. Detection limits were 70 and lug d m 1 when the analysis was performed with an ultraviolet detector at 247nm.