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Tweezers, stainless steel

Forceps, straight, blunt, anatomical

公司名称: Carl Roth
产品编号: 2687.1
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Application of Silicone Tubing for Robust, Simple, High-throughput, and Time-resolved Analysis of Plant Volatiles in Field Experiments
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2015-02-05
[Abstract]  Plant volatiles (PVs) mediate manifold interactions between plants and their biotic and abiotic environments (Dicke and Baldwin, 2010; Holopainen and Gershenzon, 2010). An understanding of the physiological and ecological functions of PVs must therefore be based on measurements of PV emissions under natural conditions. Yet sampling PVs in natural environments is difficult, limited by the need to transport, maintain, and power instruments, or else to employ expensive sorbent devices in replicate. Thus PVs are usually measured in the artificial environments of laboratories or climate chambers. ... [摘要]  植物挥发物(PV)介导植物与其生物和非生物环境之间的多样性相互作用(Dicke和Baldwin,2010; Holopainen和Gershenzon,2010)。因此,对PV的生理和生态功能的理解必须基于在自然条件下的PV排放的测量。然而,在自然环境中采样PV是困难的,由于需要运输,维护和给仪器供电,或者以重复使用昂贵的吸附剂装置。因此,PV通常在实验室或气候室的人工环境中测量。然而,聚二甲基硅氧烷(PDMS),通常用于PV取样的吸附剂(Van Pinxteren等人2010; Seethapathy和Górecki,2012)可作为硅胶管(ST) €/m(对于标准PDMS吸附剂装置,为100-550欧元)。小(mm-cm)ST片可以放置在任何实验设置,并用于顶部空间采样,有机体或顶部空间的少量操纵。 ST片具有吸收动力学和能力,足以在几分钟至几小时的时间尺度上对植物头部空间进行取样,从而产生PV混合物的生物学上有意义的"快照"。当与热解吸(TD)-GC-MS分析 - 一种40年的和广泛可用的技术 - ST片段产生可再现的,敏感的,时空解析的,来自在自然环境中采集的顶空样品的定量数据(Kallenbach等al。,2014)。

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