除虫菊酯

With the development of technology, pyrethroids has its new accessory change,its effect time will be longer and efficience will be better.

随着科技的发展，拟除虫菊酯杀虫剂的附着方式有了新的变化，作用期更长，效果更好。

This method can be used to detect 16 pesticides in 30 minutes, including organophosphorus (parathion-methyl, phorate, isofenphos-methyl, malathion, chlorpyrifos, fenthion), organochlorine (dichlororos, heptachlor, chlorothalonil,α-hexachlorocyclohexane,γ-hexachlorocyclohexane,δ-hexachlorocyclohexane, p, p'-DDE, p, p'-DDD), pyrethroids and triadimefon in vegetables.

采用选择离子－气相色谱－质谱联用方式，依据保留时间和特征离子丰度比，可以在30 min之内检测有机磷（甲基对硫磷、甲拌磷、甲基异柳磷、马拉硫磷、毒死蜱、倍硫磷）、有机氯（敌敌畏、七氯、百菌清、α-六六六、γ-六六六、δ-六六六、p， p'-DDE、p， p'-DDD）、除虫菊酯、三唑酮等16种农药。

For this reason people through the transformation of the structure to light more stable and insecticidal activity of a new series of pyrethroid insecticides.

为此人们通过对其结构的改造合成出对光稳定且杀虫活性更高的一系列新的拟除虫菊酯杀虫剂。

AIM Aim to study the protein expression of neurotrophic factor in rat brain.

目的 观察拟除虫菊酯对正常大鼠大脑皮层和海马的甲状腺激素反应基因-神经营养因子蛋白表达的影响。

So unsusceptibility of 〓-ATPase to pyrethroid insecticide may be associated with pyrethroid resistance.

Na〓K〓-ATPase对拟除虫菊酯类杀虫剂的不敏感性是抗性家蝇品系对拟除虫菊酯杀虫剂产生抗性的机理之一。

A synthetic clear or amber-colored viscous insecticide, C19H26O3, similar ''.

丙烯除虫菊酯一种合成的透明或琥珀色粘性''。

A simple, rapid and reproducible multiresidue analytical method for the determination of pyre-throids at low nanogram levels in vegetable and fruit is described.

引 言拟除虫菊酯是一类重要的合成杀虫剂，具有高效、广谱、低毒和生物降解等特性，主要用于防治棉花、蔬菜和果树的食叶和食果害虫。

Objective To establish a method for simultaneous determination of kelthane and pyrethroid pesticide residues in water.

目的 建立同时测定水中三氯杀螨醇和7种拟除虫菊酯的气相色谱测定方法。

Objective To observe the estrogenicity of organophosphorus and pyrethroid pesticides.

目的 观察有机磷与拟除虫菊酯农药的拟雌激素活性。

AIM observe the effects of pyrethroid on NGF and BDNF protein expression in rat cortex and hippocampus after thyroidectomy.

目的 观察甲状腺激素在拟除虫菊酯诱导大鼠大脑皮层和海马的NGF和BDNF表达中的作用。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。