Their thin-layer chromatogram, fluorescent spectra and fast atom bombardment mass spectra were examined to verify the completeness of the reaction and also to assign the structures.
用硅胶薄层色谱、荧光光谱及快原子轰击质谱证实反应物的完全性及其结构。
Steranes and terpanes exist in saturated hydrocarbon component of oil and source rock, and they are usually identified by gas chromatogram-mass spectrum.
甾萜类化合物存在于原油和生油岩的饱和烃组分中，通常用色谱-质谱法鉴定。
The polysaccharide structure has been determined by gas chromatogram and mass spectrometry. The important discussing the mechanism for determining polysaccharide structure by mass spectrometry.
用气相色谱-质谱法对多糖的结构进行了测定，并着重对质谱法测定多糖结构的机理进行了研究。
The polysaccharide structure has been determined by gas chromatogram and mass spectrometry. The important discussing the mechanism for determining polysaccharide structure by mass spectrometry.
用气相色谱-质谱法对多糖的结构进行了测定，并着重对质谱法测定多糖结构的机理进行了研究。
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