DETERMINATION OF PYRIDINE IN SOIL AND WATER SAMPLES OF A POLLUTED AREA

A method for the analyses of pyridine in environmental samples is desc ribed. For soil samples a distillation procedure followed by an extrac tion, an acidic extraction or a Soxhlet extraction can be used. For wa ter samples a distillation procedure followed by extraction can be emp loyed. Deuterated pyridine is used as an internal standard and the ext racts are analyzed by GC-MS. The recoveries of the methods are higher than 80%; the detection limits for pyridine are 0.01 mg/kg for soil sa mples and 0.2 mu g/l for water samples.