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根据规范化的色谱条件测定了4个主产地的23个白芷挥发油成分的气相色谱保留指数GCRI，并从中选择8个代表性成分的GCRI值组成日苦的气相色谱保留指数谱（GCRIs）。实验测得的GCRI值重视性好。23个样品GCRI测定值，其相对标准偏差RSD（％）平均低于0．13。研究表明，GCRIs可用于中药白芷的鉴别和质量评价，同时也进一步证明，气相色谱保留指数谱对于中药混乱品种的澄清、指导加工炮制和质量评价均具有可供实用的前景。利用GC／MS对白芷主要挥发性成分作出了鉴别。
According to the normalized chromatographic conditions, the gas chromatographic retention indices (GCRIs) of the 23 volatile oils from the four main production areas were determined, and the GCRI values of the eight representative components were selected to compose the gas chromatographic retention index spectra (GCRIs). The experimentally measured GCRI values are of great importance. The GCRS values of the 23 samples had a relative standard deviation RSD (%) of less than 0.13 on average. Studies have shown that GCRIs can be used for the identification and quality evaluation of T. sinensis, and it is further proved that the gas chromatography retention index spectrum has practical prospects for the clarification, guidance processing and quality evaluation of the disordered TCM varieties. GC/MS was used to identify the main volatile components of Angelica dahurica.