Water sample was collected from triazophos polluted river site. By suitable method, predominant fungi was isolated from the polluted water. Afterwards, MEM medium + differenr concentration of triazophos insecticide is inoculated with different concentration of fungal spore, kept in shaker at room temperature. Want to know the sample preparation for degraded triazophos for GC-MS analysis. Hexane / Tricholoromethane, suitable solvent for sample preparation ?