With gas chromatographic and mass spectrum (GC-MS) analysis technology, the chemical composition of biomass tar and its distillations were analyzed.
主要采用色谱-质谱联机(GC - MS)成分分析法对生物质焦油及其馏分试样进行成分分析。
The compound structure is verified by melting point, IR, NMR, element analysis, mass spectrum and optical rotation.
所得最终产品经熔点、核磁、红外、元素分析、质谱和旋光度分析，证明与预期结构相符。
The results of mass spectrum analysis are discussed.
讨论了质谱分析结果。
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