1. The polymerization of butyl methacrylate initiated by trichloromethane and tetra - chloromethane were also discussed respectively.

2. Methods Solvents such as 1,2-dichloroethane, trichloromethane and carbon tetrachloride were sampled with charcoal tube. With carbon disulfide as the desorption solvent GC(FID)analyses were performed.

3. Also called trichloromethane, chloroform is prepared through the chlorination of methane gas.

4. The polymer was soluble in dichloromethane, trichloromethane, acetone and tetrahydrofuran.

5. Using trichloromethane as an extract solvent, the extract of the two pupae induced the female parasitoid to increase searching, staying and antennal examination behaviors.

6. Objective: To established a GC method with FID detector for determination of residual organic solvent dichloromethane, trichloroethylene, trichloromethane, dioxane in Ranitidine hydrochloride capsule.

7. In surface water treatment, applying potassium permanganate to pre-oxidation instead of prechlorination may reduce the formation of trichloromethane.

8. Using acetone adds the water withdraws the atrazine in the soil, than extract with trichloromethane, after concentrated and settle to permit, use the capillary gas chromatography.

9. Through the investigation and analysis of a case of acute occupational trichloromethane poisoning, to put forward preventive measures and prevent the occurrence of similar incidents.