| 1 | In this paper the improvement of the technical conditions in amination process of methamidophos and waste water treatment have been studied. | |
| 2 | Through some improvement of producing process of methamidophos, the product with higher yield will be got, and the production cost will be droped. | |
| 3 | Acephate is on sale principally in the form of crystal in national and international markets. | |
| 4 | Determination of methamidophos, malathion, fenthion residues in beestings by gas chromatography. | |
| 5 | The standard curves of inhibition ratios-methamidophos content were set up corresponding to different initial enzyme activity. |