共查询到15条相似文献,搜索用时 171 毫秒
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《精细与专用化学品》2000,(19)
温州农药厂500t/a二嗪磷工业化 试验研究通过技术鉴定 2000年7月17日由浙江省科委委托石化厅对温州农药厂500t/a二嗪磷工业化试验研究进行了技术鉴定,与会专家一致认为,温州农药厂在国内首家实现了工业化生产二嗪磷及异丁腈,技术水平国内领先,产品填补了国内空白,该研究成果是我国自70年代未进行的二嗪磷开发研究工作以来所取得的重大突破,在二嗪磷的工业化生产上迈出了关键的一步。 相似文献
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3种地下害虫杀虫剂对蚯蚓和土壤微生物的影响 总被引:3,自引:0,他引:3
评价地下害虫杀虫剂二嗪磷、丁硫克百威和氟虫腈的生物安全性.利用滤纸接触法对赤子爱胜蚯蚓染毒,研究它们对蚯蚓的急性毒性.结果表明:二嗪磷、丁硫克百威、氟虫腈72 h的LC50值分别为0.55、141.94、137.47 mg/L,毒性大小为二嗪磷>氟虫腈>丁硫克百威.利用密闭法测定了二嗪磷、丁硫克百威和氟虫腈对土壤呼吸强度的影响,并对其使用的环境安全性进行了评价,3种农药对土壤微生物均属于尤实际危害性级农药,其中丁硫克百威安全性最好,其次为氟虫腈,二嗪磷最差. 相似文献
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Bonn Lee Seon Mi Park SunHwa Jeong KangMin Kim Eui-Bae Jeung 《International journal of molecular sciences》2021,22(14)
A real-life environment during pregnancy involves multiple and simultaneous exposures to toxic chemicals. Perinatal exposures to toxic chemicals have been reported to exert an inhibitory effect on mouse neural development and behaviors. However, the effect of combined exposures of organophosphate and nicotine has not been previously reported. In this study, we investigated whether a combined exposure of diazinon and nicotine can have a synergistic effect. The effects of the combined chemical exposure on cell viability and neuronal differentiation were examined using mouse Sox1-GFP cells. Additionally, mice were maternally administered 0.18 mg/kg diazinon, a no adverse effect level (NOAEL) dose, combined with 0.4, 1, and 2 mg/kg nicotine. Mice offspring underwent behavior tests to assess locomotor, depressive, cognitive, and social behaviors. Morphological change in the brain was investigated with immunolocalization. We revealed that the combined exposure to diazinon and nicotine can have a synergistic adverse effect in vitro. In addition, the chemical-treated mouse offspring showed abnormalities in motor learning, compulsive-like behaviors, spatial learning, and social interaction patterns. Moreover, 0.18 mg/kg diazinon and 2 mg/kg nicotine co-exposure resulted in an increase in tyrosine hydroxylase (TH)-positive dopaminergic neurons. Thus, the findings suggest that perinatal co-exposure to nicotine and diazinon can result in abnormal neurodevelopment and behavior, even at low-level administration. 相似文献
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The photocatalytic degradation of the organophosphorus insecticide diazinon in aqueous suspensions was studied by using Ni-doped ZnO nanorods as a photocatalyst. The effects of some operational parameters such as solution pH, nanocatalyst dosage, initial diazinon concentration, different purging gases, H2O2 concentration, and type of organic compounds on the removal efficiency were studied. Under optimal conditions: pH = 7, [Diazinon]0 = 20 mg/L, nanocatalyst dosage = 0.2 g/L, H2O2 = 15 mM, 99.96% of the insecticide was removed after 120 min. Three kinetic models were developed for this process, and the findings showed that the diazinon removal rate obeyed the first-order kinetic. 相似文献
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[目的]评价二嗪磷在黄瓜中的残留消解动态和膳食摄入风险。[方法]2015、2016年在湖北、浙江和河北进行规范残留试验,气相色谱法(FPD)分析样品。评价二嗪磷在黄瓜上的长期慢性膳食暴露风险和对消费者的保护水平。[结果]二嗪磷在黄瓜和土壤中的定量限分别为0.01、0.02 mg/kg,添加水平范围为0.01~3 mg/kg时,平均回收率为82%~105%,相对标准偏差(RSD)为3%~12%,二嗪磷在土壤中的半衰期为6.1~19.8 d。膳食风险评估结果显示,风险商为0.006~0.013,摄入风险保护水平值为7.48~16.99。[结论]二嗪磷在黄瓜中长期膳食摄入风险较低,可根据推荐施药剂量和施药方法在黄瓜上施用。 相似文献
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