The compound was identified by IR and meltingpointtest.
该化合物经ir与熔点测定来确定。
2
The products were characterized by IR and meltingpointtest.
经红外光谱分析及熔点测定确定所得产品为题目化合物。
3
The product was identified by oscillopolarography, infrared spectrometry and meltingpointtest. The purity of 4-picolinic acid determined by the oscillopolarography was about 97.7%.