论文部分内容阅读
一、问题的提出由于磷化氢不仅对储粮害虫的防治效果较为理想,使用方便、残留量低、费用低廉等优点。随着磷化氢在储粮中长期、频繁使用,对磷化氢残留量测定普及工作,也就有着极为重要的意义。磷化氢不仅残留低,而且残留期很短,甚至只要充分通风,残留磷化氢则会完全解吸、释放,故磷化氢现又被认为是“无残留”熏蒸剂。因此,关于磷化氢残留量的测定,我认为关键是要把握住对刚熏蒸后的粮食,在调运或使用之前进行,
First, the issue put forward Because phosphine is not only the prevention and control of stored grain pests is more ideal, easy to use, low residue, low cost and so on. With the long-term and frequent use of phosphine in grain storage, it is of great significance to popularize the determination of phosphine residue. Phosphine not only has low residual, but also has a short residual period. Even if the phosphine is completely ventilated, the residual phosphine will be completely desorbed and released, so that phosphine is considered as a “residue-free” fumigant. Therefore, the determination of phosphine residues, I think the key is to grasp the just fumigation of food, before shipping or use,