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。

Based on the normalized chromatographic conditions,determination of GC retention index(GCRI) for components of essentional oil of 23 specimens cultivated in Sichuan,Hebei,Zhejiang and Henan Province,respectively,were reported.The retention indicates of 8 Common components were selected and constituted the GC retention idex spectrum (GCRIs) for radix A.dahurica.The measured value of the GCRI of each component was precise and reproducible,and the RSD was less than 0.13%.The results indicated that the GCRIs is a prospective means for identification and quality evaluation of radix A.dahurica.The main volatile componentsn of the specimens were identified by means of GC-MS.