The compound was identified by IR and melting point test.
该化合物经ir与熔点测定来确定。
The products were characterized by IR and melting point test.
经红外光谱分析及熔点测定确定所得产品为题目化合物。
The product was identified by oscillopolarography, infrared spectrometry and melting point test. The purity of 4-picolinic acid determined by the oscillopolarography was about 97.7%.
最后经示波极谱、红外光谱和熔点测试法证明电合成的物质为异烟酸，纯度为97.7%。
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