| 1 | The toxicity of DDVP was 20 times greater than dipterex. | |
| 2 | The Population poisoned from entering the digestive system, such as trichlorfon , and so on. | |
| 3 | However the intervals became slight longer when treated with omethoate and trichlorphon. | |
| 4 | Trichlorphon, dichlorvos and chlorpyrifos were not founded in the surface water. | |
| 5 | A method for the rapid determination of trichlorfon by high performance liquid chromatography was discussed. |