1)pyrethrins除虫菊酯
1.Influence of supercritical carbon dioxide extraction of pyrethrins by using ultrasound;超声场对超临界CO_2萃取除虫菊酯的影响
2.Preliminary study on the effect of ultrasound on supercritical carbon dioxide extraction of pyrethrins;超声场强化超临界CO_2萃取除虫菊酯的初步研究
3.Separation and Purification of Natural Pyrethrins by Reversed Phase High Performance Liquid Chromatography;反相高效液相色谱分离纯化天然除虫菊酯
英文短句/例句
1.The Synthesis of Pesticide on Non Imitative Pyrethrum Ester;不含菊酸类拟除虫菊酯化合物的合成
2.EFFECTS OF PYRETHROIDS ON THE STRUCTURES OF RED BLOOD CELLS拟除虫菊酯对人红细胞膜结构的影响
3.Study on Extraction of Pyrethrin from Pyrethrum by Supercritical CO_2;超临界CO_2萃取除虫菊酯的研究
4.In Vitro Study on Cytotoxic Effects of the Pyrethroid Insecticide of Cypermethrin and Fenvalerate on the Gill Cell Line FG of the Flounder (Paralichihys Olivaceus);拟除虫菊酯类杀虫剂氯氰菊酯和氰戊菊酯对牙鲆鳃细胞系FG的细胞毒性研究
5.Sublethal Effects of Selected Pyrethriods on the Cotton Bollworm Helicoverpa Armigera;几种拟除虫菊酯对棉铃虫亚致死效应研究
6.Clinical Analysis on 56 Patients with Acute Pyrethroid拟除虫菊酯类杀虫药急性中毒56例临床分析
7.Study on Enzyme-Linked Immunosorbent Assay and Removing Techniques for Pyrethroids Residue;拟除虫菊酯类农药残留ELISA检测及消解去除研究
8.A synthetic clear or amber - colored viscous insecticide, C19H26O3, similar to pyrethrin.丙烯除虫菊酯一种合成的透明或琥珀色粘性杀虫剂，C19H26O3，与除虫菊酯相似
9.YESTERDAY,TODAY AND TOMORROW OF PYRETHRUM INDUSTRY IN CHINA中国天然除虫菊酯农药产业的过去、现在和将来
10.The water as cosolvent could enhance extraction efficiency.以水作夹带剂可以提高除虫菊酯萃取效率.
11.The Study of Chinese Herbal Medicine to Interfere Toxicity on Reproduction Correlating with Pyrethroid;拟除虫菊酯生殖毒性及中药干预作用的研究
12.The Research and Development on Pyrethroids Emulsion, Oil in Water;拟除虫菊酯类农药水乳剂的研制与开发
13.Isolation and the Basic Relative Study on Biochemical, Molecular Biology of Pyrethroid-degrading Strain;拟除虫菊酯降解菌株分离及生化分子基础研究
14.Study on Improvement of Supercritical Carbon Dioxide Extraction of Pyrethrins by Using Ultrasound;超声强化超临界CO_2萃取除虫菊酯的研究
15.Safety Evaluation of Pyrethroid to Carp;拟除虫菊酯类农药对鱼类的安全性评价研究
16.Study on Forensic Toxicokinetics of Pyrethroids;拟除虫菊酯类农药法医毒物动力学研究（一）
17.Theoretical Study on the Degradation Mechanism of Pyrethroids;拟除虫菊酯类农药降解机理的理论研究
18.Study on the Reproductive Toxicity of Ⅱ-parathyroid in Male Mice;Ⅱ型拟除虫菊酯对雄性小鼠生殖毒性作用
相关短句/例句
pyrethrin[英][pai'ri:θrin][美][pa?'riθr?n, -'r?θr?n]除虫菊酯
1.Study on extraction of pyrethrin by compressed CO_2;压缩态CO_2萃取除虫菊酯的初步研究
2.Supercritical carbon dioxide was used to extract pyrethrin from pyrethrum flowers.采用超临界二氧化碳萃取除虫菊花中的有效成分除虫菊酯,设计了一个突然降压的过程,使除虫菊花的细胞壁破碎,减少过程的传质阻力。
3.Compared with Soxhlet method and supercritical carbon dioxide extraction, microwave extraction of pyrethrins is a rapid method (about 200 s) with less solvent consumption (about 240 mL), higher yield and better product with light color.对微波萃取、索氏提取和超临界二氧化碳萃取除虫菊酯的效果进行了比较 ,结果表明微波萃取法具有萃取时间短 (约 2 0 0 s) ,提取率高 ,溶剂用量少 (约 2 4 0 m L) ,产物品质好 ,色泽浅等优点。
3)pyrethroids拟除虫菊酯
1.Determination of Pyrethroids Residues in Tea by High Performance Liquid Chromatography with Ultrasonic Extraction;超声波提取-高效液相色谱测定茶叶中拟除虫菊酯农药残留
2.Study of Three Kinds of Pyrethroids in Poisonous Fish Sample with Gas Chromatography;气相色谱法测定中毒样品鱼体中三种拟除虫菊酯农药的方法研究
3.Progress of Pyrethroids Insecticides;拟除虫菊酯类杀虫剂的研究进展
4)pyrethroid[英][pai'ri:θr?id][美][pa?'riθr??d, -'r?θr??d]拟除虫菊酯
1.Application of purification with gel permeation chromatography (GPC) to determination of pyrethroid pesticide residues;GPC净化处理在测定拟除虫菊酯残留量中的应用
2.Multiresidue Determination of 17 Organochlorine and Pyrethroid Pesticides in Tea by Gas Chromatography-Negative Chemical Ionization-Mass Spectrometry;GC-NCI-MS分析茶叶中17种有机氯和拟除虫菊酯农药残留
3.Analysis of chlorothalonil and pyrethroid pesticides in water using a solid phase extraction technique;固相萃取法测定水中百菌清和拟除虫菊酯
5)pyrethroid pesticides拟除虫菊酯
1.Study on quantitative structure-retention relationships for pyrethroid pesticides compounds;拟除虫菊酯类化合物QSRR研究
2.A solid phase extraction(SPE)-gas chromatography(GC)-negative chemical ionization mass spectrometry(NCI/MS) method was proposed for analyzing 11 kinds of pyrethroid pesticides in tea.通过固相萃取-气相色谱-负化学离子源质谱技术建立了11种拟除虫菊酯类农药残留的检测方法,并应用于茶叶农残检测。
3.The results showed that control efficacy of pyrethroid pesticides to insect pests of rice was good.试验结果表明,拟除虫菊酯农药对水稻害虫具有较好的防治效果,在参试的4种药剂中,以氯氟氰菊酯效果最佳。
6)Pyrethrins除虫菊酯类
延伸阅读
除虫菊酯分子式：分子量：CAS号：性质：植物白花除虫菊中有杀虫药用价值的有效成分。其主要成分有除虫菊酯Ⅰ(pyrethrinⅠ)C21H28O3，除虫菊酯Ⅱ(pyethrinⅡ)C22H28O5，瓜叶除虫菊酯Ⅰ(简称瓜菊酯Ⅰ，cinerinⅠ)C20H28O3和瓜叶除虫菊酯(简称瓜菊酯Ⅱ，cinerinⅡ)C21H28O5。都是精油。除虫菊酯Ⅰ的R为CH3—，R'为—CH2—CH=CH—CH=CH2；除虫菊酯Ⅱ的R为CH3O—CO—，R'为—CH2—CH=CH—CH=CH2；瓜叶除虫菊酯Ⅰ的R为CH3—，R'为—CH2—CH=CH—CH3；瓜叶除虫菊酯Ⅱ的R为CH3O—CO—，R'为—CH2—CH=CH—CH3。无色粘稠的高沸点液体。溶于石油等有有机溶剂。在日光、空气、高温和碱性物作用下会引起分解而失效。是制备蚊虫香的主要原料。对人畜毒性低，使用安全。对昆虫的毒力强度，以除虫菊酯Ⅰ最强，瓜叶除虫菊酯Ⅰ次之，除虫菊酯Ⅱ再次之，瓜叶除虫菊酯Ⅱ最弱。农业上常配成溶液或乳剂使用。
