Résumé
In view of the toxicity thresholds of organotin compounds and of the draft European standards in water, very sensitive analytical techniques are needed in order to carry out pollution controls in the hydrological cycle. The technique of gas chromatographic speciation-pulsed flame photometry detection (GC-PFPD) has been optimized. This technique proved interesting in terms of Quality, speed and cost of testing for environmental pollution control. Monitoring in the environment has shown the existence of a background noise of contamination by these compounds irrespective of the type of water considered. Concentrations at levels of concern were measured, showing the persistence of these compounds in the environment and the need for regular control. A preliminary study of the sorption of these compounds on sludge from sewage treatment plants was conducted showing their strong ability to adsorb on sludge