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OXFORD QX X射线仪器

库存状态:现货

OXFORD QX是由OXFORD Instruments开发的一种最先进的傅立叶变换离子回旋共振(FT-ICR)光谱仪。它利用了一种超高分辨率质谱技术,用于研究小分子和离子。FT-ICR技术依靠静态磁场和射频(RF)场的组合来分离和表征离子。QX由8极0.7特斯拉超导磁体、真空系统、射频系统、探测器、离子源和零流体冷却系统组成。改性的Paul陷阱设计用于小分子和离子。磁场是由捕获的电子产生的,这些电子沿着陷阱的纵轴诱导径向电场。然后用电场来捕获和分离感兴趣的离子。这是通过控制所应用的无线电频率的频率和强度来实现的。射频信号由信号发生器产生,并由射频放大器放大,然后施加到陷阱电极上,在陷阱轴上绘制振荡电场。这种电场使感兴趣的离子束偏离磁场并朝向探测器。通过栅极时间,选择相同质荷比的离子,从而可以检测到一系列离子。检测器测量离子强度,捕获射频场感应的信号。这些信号随后被用于计算离子的质电荷比以及将其碎片所需的电流量。然后使用专门的软件对数据进行分析,以深入了解碎片化过程、离子稳定性和动力学以及动力学速率常数。OXFORD QX为检测小分子和离子提供了高灵敏度,可以检测质荷比低至0.1 amu/q的离子。这加上其高分辨率,使得QX成为在药物发现和开发、生物无机催化、代谢组学、蛋白质组学和环境研究领域对样品进行详细结构和结构分析的理想选择。

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