利用红外光谱、核磁共振谱对产品结构进行了确定。

The structure of the product is identified with IR, H-NMR and C-NMR.

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利用红外光谱、质谱和核磁共振确定了中间体的结构。

The product structure was identified with FTIR, MS and NMR.

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利用红外光谱、质谱和核磁共振确定了中间体的结构。

The product structure was identified with FTIR, MS and NMR.

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