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Abstract #0908

Ultrafast 2D High-Resolution COSY Spectra in Inhomogeneous Fields

Congbo Cai1, Fenglian Gao1, Shuhui Cai1, Zhong Chen1

1Departments of Physics and Communication Engineering, Fujian Key Laboratory of Plasma and Magnetic Resonance, Xiamen University, Xiamen, Fujian, China

High-resolution COSY spectra can provide more information than 1D spectra. Recently, our group proposed a method to achieve high-resolution COSY spectra under inhomogeneous fields based on the intermolecular multiple-quantum coherences (iMQCs). However, 3D acquisition is necessary for a 2D COSY spectrum, which makes the experiment rather time-consuming. In this study, we introduced Hadamard technique to speed up the acquisition greatly. A high-resolution iMQC COSY spectrum can then be obtained in less than 10 minutes under inhomogeneous fields. Such a technique would widen the application field of iMQC methods.