Abstract: Objective To observe rule of medicine concentration of blood and the last concentration that through hemoperfusion after poisoned by acephate. Methods Utilizeng the patient annual bonus venous blood in hospital emergency room, the content of acephate in plasma was analyzed by gas chromatography. Results After hemoperfusion, the concentration of acephate showed a rapid drop and the characteristic that the concentration drops quicker if medicine concentration of blood before hemoperfusion is higher. Conclusion Hemoperfusion is able to rapidly reduce the concentration of acephate in blood, its speed is determined by initial concentration and the beginning time of hemoperfusion etc.

Key words: poisoning, hydropneumatic pouring, GC