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异核相关谱
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异核相关谱
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heteronuclear correlation spectroscopy;HETCOR
异核相关谱
确定一键连接质子和13C等核的化学位移相关谱。异核相关谱是同核相关谱的二维相关谱(COSY)的扩展,其间接维为1H化学位移,直接维为13C等核化学位移。只有不同基团的1H和与其一键相连的13C核之间才会产生可观测信号。
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environmental requirements for origin of non-environmental pollution aquatic products
Environmental Research
environmental reservoir
environmental resistance of composites
environmental resources planning system
Environmental resource value
Environmental resource value assessment
environmental restoration
environmental rhythm
environmental right
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