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20181112000193
- 产品名称:H2S-1010植物硫化氢分析仪
- 订货号:tlyon005309
- 品牌名称:美国Exhalix
H2S-1010植物硫化氢分析仪,植物硫化氢气体分子信号
硫化氢(H2S)一直被认为是一种有毒气体,作为第三种气体信号分子,H2S在生物体中的生理功能逐渐被揭示。植物中H2S信号研究在不到10年时间已取得了长足进步。植物体内H2S的生成酶比动物细胞丰富,定位于细胞质、线粒体和叶绿体等多个亚细胞部位,表达具有时空性。目前,植物领域H2S的功能研究主要采用药理学方法。随着研究的深入,遗传学证据不断加强。内源H2S的研究手段也在不断进步,从亚甲基蓝间接测定,发展到气/液相色谱、荧光探针、活体电极等直接检测手段。植物中H2S的生理功能研究主要集中在对干旱、重金属等环境非生物胁迫的缓解作用及机理,也有一些植物生长发育调控方面的报道。目前了解到,H2S可通过与植物激素、其它气体信号分子、活性氧等相互作用以及蛋白质巯基化修饰等方式发挥生理功能。虽然植物气体信号的研究有其特殊性,也遇到很多困难,但是H2S信号的广泛而特殊的生理功能是一个具有重要科学意义和应用前景的研究领域。
H2S-1010植物硫化氢分析仪并且已被用作气相色谱(GC)或质谱(MS)方法的替代方法,这些方法对于实验室研究而言过于昂贵且麻烦。H2S-1010硫化氢检测仪能够对单一气体样品或连续采样模式中的十亿分之几的硫化氢具有极快速且线性的响应,在相关实验研究中,能检测低至2 ppb( SNR> 3)硫化氢。
H2S-1010植物硫化氢分析仪是一款便携式,用户友好且快速的设备,为用户提供了极大的灵活性。只需按一下按钮即可在几秒钟内获得读数,但其菜单驱动的选项可用于调整测量协议和采样参数,从而使用户可以根据自己的量身定制的测量需求来紧密配置系统。
典型传感器响应曲线
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典型信噪比
参考文献:
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