The diffraction method is appreciably lower than that of the spectroscopic method. 衍射法的精确度显然低于光谱法的精确度。
A study of pentamethoxyl red by absorption and picosecond laser spectroscopic method 五甲氧基红的吸收光谱和皮秒激光光谱研究
A retrospective matrix deductive method for atomic spectroscopic terms of equivalent electronic complicated configuration 回溯矩阵法推求等价电子复杂组态的原子光谱项
Method The compounds were extracted with solvents, isolated by various column chromatography and identified by spectroscopic methods. 方法溶剂提取及各种柱色谱法分离，光谱技术鉴定结构。