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首页> 外文期刊>Journal of magnetic resonance >A Two-Dimensional Experiment That Separates Decoupling Sidebands from the Main Peaks
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A Two-Dimensional Experiment That Separates Decoupling Sidebands from the Main Peaks

机译：将主峰去耦边带分离的二维实验

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摘要

Broadband decoupling techniques generate undesirable cycling sidebands. The new two-dimensional technique described here allows separation of these sidebands from the main peaks by spreading the sideband responses in the indirectly detected dimension (F_1) according to their frequency separations from the parent peaks, leaving the main resonances at zero frequency in F_1. This trace at zero frequency shows a thousandfold suppression of the residual sidebands, making possible the detection of very weak signals from dilute constituents of the sample. The experimental results can be displayed as one-dimensional "quiet decoupling" spectra without any significant loss of sensitivity. The new technique (DESIRE-decoupling sideband resolved spectroscopy) is simple, robust, and straightforward to implement.
机译：宽带去耦技术会产生不良的循环边带。这里描述的新的二维技术允许通过根据与母峰之间的频率间隔在间接检测的维（F_1）中扩展边带响应，将边带响应扩展到主峰，从而将这些边带与主峰分离，从而使主共振保持在F_1的零频率处。在零频率处的该迹线显示出残留边带的千倍抑制，从而有可能从样品的稀薄成分中检测出非常微弱的信号。实验结果可以显示为一维“安静的去耦”光谱，而没有任何明显的灵敏度损失。新技术（DESIRE-去耦边带分辨光谱法）简单，可靠且易于实施。

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