查询词典 pesticides

Methods AMDIS, full ion mode and selected ion mode were used to analyze forensic toxicoid, which were mixed in different concentrations(40.0, 4.0, 0.4mg/L)of pesticides, designed drugs and soporifics.

利用自动质谱去卷积定性系统、全扫描离子模式和选择离子监测技术对农药、毒品、安眠镇静类药等常见毒物进行检索分析，比较三种检索方式对不同质量浓度(40.0、4.0、0.4ml/L)毒物的检验结果。

Acetonitrile-sodium chloride, trichloromethane and acetone-dichloromethane were used to extract organophosphorous pesticides respectively. Pulsed-flame photometer detector was used to analyze the extraction rate of these three solvents. Flame ionization detector was used to analyze the content of impurity in the samples extracted by those three solvents.

分别采用乙腈－氯化钠法、三氯甲烷法和丙酮－二氯甲烷法提取蔬菜样品中残留的有机磷农药，使用带脉冲式火焰光度检测器的气相色谱法比较了三种提取方法有机磷农药的提取效率，使用带火焰离子检测器的气相色谱法分析了三种提取方法杂质溶出量。

Three organochlorine pesticides -endrin, dieldrin, and p,p'-DDT-were used as target compounds to test the hypothesis that triolein embedded cellulose acetate membrane only extracts freely dissolved hydrophobic organic compounds. The effect of dissolved organic carbon on the bioavailability of the OCPs was also examined through accumulation study with TECAM and Japanese medaka.

以异狄氏剂、狄氏剂和p，p'-滴滴涕3种持久性有机氯农药为研究对象，通过室内模拟实验，验证了三油酸甘油脂-醋酸纤维素复合膜富集水中自由溶解态疏水性有机物的假设，研究了水中溶解性有机碳对TECAM富集3种有机氯农药的影响，并与相同暴露条件下日本青鳉鱼的富集结果进行了比较。

In order to evaluate the mutation effect of the 5 kinds of pesticides,SOS/Umu chromotest was applied to 2,4-D Butylate,Butachlor,Starane,Argold and Metribuzin.

采用SOS/Umu显色试验研究了2，4K-D丁酯，丁草胺，使它隆，艾割和嗪草酮等5种除草剂的致突变性。

The research group has conducted several studies which associate exposure to pesticides with neonatal malformations if the genito-urinary system, such as undropped testicles and total fusion of the urethral folds.

研究组进行了几组研究了新生儿出生畸形泌尿生殖系统与杀虫剂暴露的关系，以泌尿生殖系统为例，如睾丸未降、尿生殖褶未闭等。

Therefore,It is necessary to find a new type pesticides to control Venturia nashicola.

因此，有必要寻找一种新型杀菌剂对梨黑星病菌进行防治。

In recent years, some pesticides are non-functional on Venturia nashicola because of the emergence of drug-resistant bacteria and chemical residues in the environmental pollution problems.

近年来由于梨黑星病菌抗药性的产生及药剂残留量对环境污染问题等使一些药物对梨黑星病菌的防治效果明显下降。

In order to search for new types of highly active and low toxic pesticides, we considered alternaric acid as a lead compound and considered 5, 6-dihydro-2H-pyran2, 4-diones as a patent structure, designed and synthesized seven series of 5, 6-dihydro2H-pyran-2, 4-diones derivatives, tested their fungicidal, herbicidal and tobacco virucidal activities.

为了寻找高效低毒的农药品种，以交链孢酸为先导化合物，以5，6-二氢-6-烷基-2H-吡喃-2，4-二酮的结构为母体结构，设计并合成了七个系列的2，4-吡喃二酮化合物，用〓H NMR、〓C NMR、质谱和元素分析证明了其结构，并测试了部分化合物的杀菌、除草和抗烟叶病毒的活性。

Winemaking techniques are a factor also as are the viticultural techniques of the vineyard, such as dry irrigation or minimal or non use of pesticides.

酿酒技术和葡萄栽培技术一样，也是其中一个因素，如干灌溉或尽量少使用杀虫剂或不使用杀虫剂。

Pesticides were extracted from sample with ethyl acetate in an ultrasonic bath, then determined by gas chromatography-mass spectrometry operated in negative chemical ionization mode and quantified in selective ion monitoring mode, and ethion was used as an internal standard.

蔬菜水果样品用乙酸乙酯超声提取，以乙硫磷为内标物，采用GC-NCI-MS的选择离子监测方式进行定性和定量分析。9种有机磷农药的方法检测限为0.12～1.0 μg/kg。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。