期刊论文

中文

环境科学导刊

1673-9655

2003

22

4

11-12

10.3969/j.issn.1673-9655.2003.04.004

本校为第一机构

研究了β-环糊精(β-CD)对3种有机农药的增溶作用.结果表明,β-环糊精能够促进西维因、草枯醚、五氯酚的水溶性,并且相对增溶倍数随着β-环糊精溶液浓度的增加而增高(依次为西维因:St/So＝0.1185Co+1.039;草枯醚:St/So＝0.17Co+0.81;五氯酚:St/So＝0.546Co+1.12)而对多菌灵的溶解度反而降低(y＝-0.048x+1.00).增溶作用主要是由于农药与β-环糊精形成包合物而引起的.

β-cyclodextrin(β-CD) was investigated to increase the apparent aqueous solubility of three organic pesticides. The results show that the apparent solubility of sevin, pentachlorophenol were significantly increased by β-cyclodextrin ,but solution of cowbendazim was decreased. The relative aqueoud-phase concentration (St/S0) of the pesticides increased linearly with increasingβ-cyclodextrin concentration (sevin: St/S0=0.1185C0+1.039; nitro fen: St/S0=0.17 C0+0.81;cowbendazim: St/S0=0.546 C0+1.12). the capacity of solubil...