The structures of the above compounds were assigned by nuclear magnetic resonance, mass spectrometry, and infrared spectroscopy etc.

以上所有化合物的结构通过核磁共振、质谱、红外光谱等确证。

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The integration on mass spectrometry, nuclear magnetic resonance, and other modern analytical techniques, made up of the metabonomics technology platform, have accelerated the study on metabonomics.

质谱、核磁共振等现代分析技术作为代谢组学研究的技术平台，它们的整合运用加速了代谢组学的研究进程。

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The resulted D, L-lactide and glycolide were found to have ring structure by fourier transform infrared spectrometry and proton nuclear magnetic resonance(1H NMR) spectrometry.

通过傅立叶红外光谱和氢核磁谱（1H NMR）测试表明所合成的丙交酯和乙交酯具有环状结构。

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He said the next stage was to confirm its exact identity using mass spectrometry and nuclear magnetic resonance analyses to produce it chemically on a larger scale.

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