pyrethroid 中文意思是什麼

pyrethroid 解釋
合成除蟲菊酯
  1. Study on the joint action of organophosphorus and pyrethroid pesticides

    有機磷與擬除蟲菊酯農藥聯合作用的研究
  2. The analytical method for five pesticide residues of pyrethroid, such as fenpropathrin, cypermethrin, fenvalerate, deltamethrin and bifenthrin in potable water and source water determination by capillary gas chromatography at the same time, with n - hexane for extracting agent

    摘要以正己烷為萃取劑，採用毛細管氣相色譜法同時測定生活飲用水及水源水中甲氰菊酯、氯氰菊酯、氰戊菊酯、溴氰菊酯和聯苯菊酯五種擬除蟲酯類農藥殘留量。
  3. Advice was given that pyrethroid should be used scientificly, the application concentration of cycloprothrin, etofenprox and cypermethrin of water area should be less than 0. 685 mg / l, 0. 057mg / l and 0. 020 ug / l respectively

    本研究正是針對目前擬除蟲菊酯農藥的管理和使用中存在的這些迫切問題而進行的，研究結果可為擬除蟲菊酯的合理使用與安全性評價提供重要科學依據。
  4. High concentration short - time impact examination showed that the impact of pyrethroid on carp is not severe when the case of concentration is not too high and time is not too long, most of the poisoned carp come back after the carp that exposured high concentration cycloprothrin were transferd to fresh water

    高濃度短期沖擊試驗說明在擬除蟲菊酯濃度不太高，暴露時間不太長的情況下對鯉魚的毒性影響不大，受到高濃度擬除蟲菊酯暴露的鯉魚轉移到清水中后，大部分有一定中毒癥狀的魚體，都會逐漸恢復過來。
  5. Multi - residue analysis of pyrethroid pesticides in rice by gas chromatography with electron capture detector

    氣相色譜法測定大米中多種擬除蟲菊酯農藥殘留量
  6. The subchronic toxicity experiment studied the effects of different pyrethroid concentration ( 1 / 10 1 / 20, 1 / 40 1 / 80 of 96hlc50 ) on the behaviour, growth, haematological biochemical indices and pathology of carp in 60 days. the results showed that pyrethroid had no effect on the body length while had obvious influence on the body weight intake of food and swiming, some carp then showed intermittence toxic symptom until death

    亞慢性試驗研究了鯉魚在不同低濃度擬除蟲菊酯（ 96hlc _ （ 50 ）的1 80 、 1 40 、 1 20 、 1 10 ）下60天暴露實驗中，其行為、生長、血液生理生化指標和組織病理學所發生的變化和受到的不同影響。
  7. Compared with the control, the effect of pyrethroid on haematological biochemical indices of carp was significant. the hb concerntration, rbc numbers, tp and ap numbers and the serum sodium level dropped ? the serum alt and ast activity and serum potassium level raised. these haematological difference of the treated groups were significant ( p > 0. 05 ) or very significant ( p > 0. 01 ) compared with the control group

    與對照組比較，低濃度擬除蟲菊酯對鯉魚的體長影響不顯著，對體重、攝食和行為有一定的影響，其影響程度隨處理劑量的遞增和時間的延長而加強；在試驗後期較高濃度組部分鯉魚發生間歇性中毒癥狀，繼而死亡。
  8. Abstract : quantitative genetic variation in larval tolerance to cyhalothrin and fenvalerate was examined in a pyrethroid - resistant population of cotton bollworm, helicoverpa armigera ( h & uuml ; bner ) was examined with half - sibling analysis and significant additive genetic variation in larval tolerance was detected, demonstrating that tolerance phenotypes in this population are highly heritable ( h2n narrow sense heritability = 0. 4625 0. 1578 ) to fenvalerate than that to cyhalothrin ( h2n = 0. 2476 0. 0248 )

    文摘:通過單對交配設計不同的交配家系，採用半同胞法分析了棉鈴蟲對三氟氯氰菊酯和氰戊菊酯的抗性狹義遺傳力，並對2種菊酯類藥劑的抗性發展速度進行評價。
  9. Analysis of 5 pyrethroid pesticide residues in ganoderma, poria

    茯苓中5種擬除蟲菊酯農藥殘留分析
  10. Discusses of the technique of control rice stem borer and rice caseworm with pyrethroid insecticides

    菊酯農藥防治水稻螟蟲的技術探討
  11. Determination of pyrethroid residues in tea

    茶葉中擬除蟲菊酯類農藥殘留的檢測
  12. Biological identity of molecular design in pyrethroid

    擬除蟲菊酯分子設計中的生物同一性
  13. Synthesis of a novel non - ester pyrethroid

    新型非酯型擬除蟲菊酯的合成
  14. Development of chiral separation of pyrethroid pesticides

    擬除蟲菊酯農藥手性分離的研究進展
  15. Study on microbial degradation of synthetic pyrethroid insecticides

    擬除蟲菊酯類農藥微生物降解研究進展
  16. Developing new formula with the specificity of synthetic pyrethroid

    充分利用擬除蟲菊酯的特性開發新制劑
  17. There are also some specially formulated pyrethroid products with extended residual activity that can be applied as residual sprays

    有些配方的產品具有較持久殘留作用，可用作殘留噴灑的方法去施放。
  18. To minimise the detrimental effect to non - target living organisms, we choose synthetic pyrethroid insecticides which generate less hazards to human beings

    為盡量減輕對非目標生物的影響，本署選用對人類危害較少的合成除蟲菊脂殺蟲劑。
  19. This paper reviews the utilization over the 20 last years of chemometrics methods in analysis of pesticide residues, including organochlorine, oranophosphorous, carbamate, and synthetic pyrethroid insecticides, along with herbicides and fungicides

    摘要對近20年來化學計量學方法在農藥殘留（包括有機氯殺蟲劑、有機磷殺蟲劑、氨基甲酸酯類殺蟲劑、擬除蟲菊酯殺蟲劑、除草劑及殺菌劑）分析測試中的應用進行了評述。
  20. Determination of pyrethroid pesticide residues in tobacco leaves and tea using stir bar sorptive extraction - thermal desorption and gas chromatography - mass spectrometry

    負化學源質譜聯用法測定菊酯類農藥
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