The baicalin in cream was identified by TLC method and the content of baicalin in cream by second derivative spectrometry.
用薄层色谱法鉴别乳膏中的黄芩苷，并用二阶导数光谱法测定其含量。
Traces of Germanium in 31 different species of Chinese medicinal herbs were determined by hydride generation-second derivative spectrometry.
采用氢化物发生-导数光谱法测定了31种中草药中锗的含量。
Conclusion the formulation and preparation technique are rational and the quality is easy to handle by the method of second derivative spectrometry.
结论制剂处方及制备工艺合理，二阶导数光谱法重现性好，适于该制剂的质量控制。
Use is made of second derivative spectrometry, the quantity is directly determined of the monoesters, diesters and triesters in glyceride, without the samples being separated.
采用二阶导数光谱法，试样不需分离，直接测定混合甘油酯中一酯、二酯、三酯的含量。
Use is made of second derivative spectrometry, the quantity is directly determined of the monoesters, diesters and triesters in glyceride, without the samples being separated.
采用二阶导数光谱法，试样不需分离，直接测定混合甘油酯中一酯、二酯、三酯的含量。
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