The melting point equipment, IR and 1h NMR techniques were used to characterize the product.

用熔点法、1HNMR和红外光谱分析技术对产物进行了表征。

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The melting point equipment, IR and 1h NMR techniques were used to characterize the product.

用熔点法、1HNMR和红外光谱分析技术对产物进行了表征。

youdao