求翻译,谢绝机器翻译 The detection of pesticide residues in teaAbstractOrganic chlorine pesticide lipid solubility,easy in the food chain bioaccumulation,eventually entering the human body and human chronic toxicity,animal experiments to verify its teratogenic,carcinogenic effects.As the substitute of the organic chlorine pesticide,pyrethroid pesticides in agricultural production has been widely applied.This kind of pesticide application amount is small,easy degradation,residual period is shorter,the virus,pests,weeds,has strong killing effect,but this kind of pesticide also have certain accumulation,part of the human teratogenic,mutagenic effect.At present domestic and international tea organochlorine and pyrethroid pesticide detection by gas chromatography(GC)and gas chromatography-mass spectrometry(GC-MS).Sample of organochlorine and pyrethroid pesticides in organic solvents petroleum ether extraction,liquid liquid partition and chromatography purification,using petroleum ether and ethyl acetate(95+5)。
农药残留英语怎么说 农药残留 pesticide residue;[例句]建立了测定食品中有机氯农药残留的气相色谱法。A method for determination of organochlorine pesticide residues in food by gas chromatography was established.
我想找一些农药化学成分的化学式和英文翻译~~
有机农药有毒吗?对人体有什么危害吗?有机农药有毒吗?对人体有什么危害吗?有机农药的毒性是由有机农药的化合物性质决定的,其毒性大小也是由有机化合物的结构和性质:-。
翻译一下~~!!! Human pollution is directly or indirectly to environmental emissions exceed its self-purification ability of the material or energy,thereby reducing the quality of the environment,human survival and development,ecosystems and the adverse impact on property phenomenon.They include:water pollution,air pollution,noise pollution,radioactive pollution.Water pollution is due to the involvement of a substance which led to its chemical,physical,biological or radioactive contamination,and other aspects of the change,thus affecting the efficient use of water,endangering human health or harming the environment,resulting in the deterioration of water quality.Atmospheric pollution is that the concentration of air pollutants harmful to the extent that damage ecosystems and human survival and development of normal conditions,cause harm to persons and biological phenomenon.Noise pollution is generated by means of environmental noise over the state of environmental noise emission standards and。
翻译一段毕业论文不要机译啊。多谢。 In this paper,capillary gas chromatography of soil organic pesticides residues in the soil to petroleum ether+acetone in Soxhlet extraction is extracted,the extract of the scale centrifuge tube in a concentrated sulphuric acid purification.By capillary gas chromatography of soil and bellflower in the content of DDT and heptachlor.Bellflower to soil and acetone in petroleum ether 10-Soxhlet extraction in the extraction,extracts of the scale centrifuge tube in a concentrated sulphuric acid purification.Key words:capillary gas chromatography;medicine;soil;Soxhlet extraction:organochlorine pesticide residues in
水果中哪些农药是禁止使用的? 在新鲜水果的生产中,严格禁止使用的农药有:(1)有机氯农药。六六六、滴滴涕、氯丹、林丹、三氯杀螨醇、艾氏剂、狄氏剂。(2)有机磷农药。甲胺磷、对硫磷、甲基对硫 磷、。