| 马 涛, 袁会珠, 闫晓静, 杨代斌*.噻唑膦在不同介质不同pH条件下热贮稳定性[J].植物保护,2017,43(1):95-98. |
| 噻唑膦在不同介质不同pH条件下热贮稳定性 |
| Heat storage stability of fosthiazate in different media and different pH |
| 投稿时间：2016-02-23 修订日期：2016-05-11 |
| DOI： |
| 中文关键词: 噻唑膦 酸碱度 介质 热贮稳定性 |
| 英文关键词:fosthiazate pH medium heat storage stability |
| 基金项目:公益性行业（农业）科研专项（2012BAD19B04） |
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| 中文摘要: |
| 噻唑膦加工后的稳定性是剂型选择的关键，为了提高其稳定性，延长其持效期，本研究通过噻唑膦在几种介质中的热贮稳定性试验，研究了酸碱度及介质对噻唑膦化学稳定性及稳定剂环氧大豆油对噻唑膦水乳剂热贮稳定性的影响，从而探索出噻唑膦在不同介质中稳定的最佳pH范围。研究结果发现，噻唑膦在同一pH下不同介质中的稳定性表现为硅藻土＞膨润土＞水乳剂，当pH为4.5时噻唑膦的稳定性最佳，而且加入0.2%的环氧大豆油做稳定剂可使噻唑膦在水乳剂中的分解率控制在10%以下。总之噻唑膦在酸性介质中较稳定，在硅藻土和膨润土中的稳定性要高于水乳剂中的稳定性。 |
| 英文摘要: |
| The stability of fosthiazate is the key to the selection of formulations and application. In order to improve the stability of fosthiazate, prolong the lasting period and screen out the optimal stable condition, the effects of pH and media including EW, bentonite and kieselguhr on the degradation of fosthiazate were conducted by means of hot storage stability test. The results illustrated that the ratios of fosthiazate degration in different media were: EW> bentonite>kieselguhr at the same pH. pH and stabilizer had a great effect on the single formulations. The results demonstrated that fosthiazate was relatively stable at pH 4.5, and adding 0.2% epoxidized soybean oil could keep the degradation rate below 10%. Our results indicate that fosthiazate is more stable in acidic medium and in soil medium than in EW. |
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