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    联系我们

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    磨口挥发油测定器/挥发油提取器/
    磨口挥发油测定器/挥发油提取器/
    产品型号:HAD-500ML
    产品货号:23819
    产品概述:

    磨口挥发油测定器/挥发油提取器/  型号:HAD-500ML

    (挥发油又称精油,英文为 essential oils,是存在于植物中的一类具有芳香气味、可随水蒸气蒸馏出来而又与水不相混溶的挥发性油状成分的总称。挥发油为一混合物,其组份较为复杂。主要通过水蒸气蒸馏法和压榨法制取精油.挥发油成分中以萜类成分多见,另外,尚含有小分子脂肪族化合物和小分子芳香族化合物。
      挥发油多为无色或淡黄色油状液体,多具特殊的香气或辛辣味。比重在0.850—1.180之间,易溶于
    无水乙醇、醚类、氯仿、二硫化碳、和脂肪油中,难溶于水。挥发油均有一定得旋光性和折光率,折光率是鉴定挥发油品质的重要依据。放置过久易氧化聚合,是颜色加深或成树脂状,故应密闭、低温和避光保存。------------资料可供参考。)


    全部规格的挥发油测定器(玻璃活塞)
    磨口挥发油测定器配置:挥发油测定管;容量:5ml;最小分度:0.1ml;球形冷凝管;有效长度:400mm;圆底烧瓶;500ml

     

    亚博 yabo_亚博体育yabo88下载_亚博体育网页登录 
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           010-51666869

    传  真:010-69807135
    手  机:15810842463

           13120411557

          18701256112

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    Q  Q  :2820129828

            1575574360

            1321298635

            1445496132
    地  址:北京市北洼路90

            号院16号楼317

     (北京市地质工程勘察院院内)

            

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