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%。
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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