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%。
Methods: According to the methods of Chinese Pharmacopoeia, used IR, UV, HPLC, and GC to test the physicochemical property of ranolazine such as appearance, melting point, solubility, purity et al.
方法：根据中国药典的方法，采用IR、UV、HPLC、GC对雷诺嗪的外观、熔点、溶解度、纯度等理化性质进行了考察；
Paraffin waxes are normally marketed on the basis of a melting-point test.
石腊一般按其熔点不同在市场上分类出售。
Paraffin waxes are normally marketed on the basis of a melting-point test.
石腊一般按其熔点不同在市场上分类出售。
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