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目的:对怀牛膝生品、盐制品和酒制品中挥发性成分进行分析和比较.方法:采用顶空固相微萃取法(HS-SPME)分别萃取怀牛膝生品、盐制品和酒制品中挥发性成分,并用气相色谱-质谱(GC-MS)联用技术对怀牛膝生品及其盐制品和酒制品中的挥发性成分进行分析鉴定,利用峰面积归一化法测定各成分相对百分含量.结果:共鉴定出38种化合物,从怀牛膝生品、盐制品和酒制品中分别鉴定出23、16和15种化合物,分别占其挥发性成分总含量的79.14%、49.80%和44.57%,三者含有共同挥发性成分4种.与怀牛膝生品相比,盐制品中新增了10种化合物、减少了17种化合物,而酒制品中新增了9种化合物、减少了17种化合物.结论:不同炮制方法对怀牛膝中化学成分的种类及含量有一定影响.采用HS-SPME-GC-MS联用技术能快速有效地分析怀牛膝不同炮制品中的挥发性成分,为怀牛膝炮制品的质量评价及应用提供科学指导.“,”Objective: To analyze and compare the difference in volatile components in Achyranthesbidentatae Radix, salt-pro-cessed product of Achyranthes bidentatae Radix and wine-processed product of Achyranthes bidentatae Radix. Methods:Headspace sol-id-phase microextraction ( HS-SPME) was used to extract the volatile components from Achyranthes bidentatae Radix and the two pro-cessed product of Achyranthes bidentatae radix. The chemical compositions were analyzed by gas chromatography-mass spectrometry ( GC-MS) , and their relative mass fraction of each component was determined by an area normalization method. Results:A total of 38 chemical components were identified, and 23, 16 and 15 components were respectively identified from Achyranthes bidentatae Radix, the salt-processed product of Achyranthes bidentatae Radix and the wine-processed product of Achyranthes bidentatae Radix accounted for 79. 14%, 49. 80% and 44. 57% of the total content of volatile components, respectively. There were 4 types of common volatile chemical constituents in the three products. Compared with Achyranthes bidentatae Radix, 10 types of new compounds were produced and 17 types of old compounds disappeared in the salt-processed product, and 9 types of new compounds were produced and 17 types of old compounds disappeared in the wine-processed product. Conclusion:Different processing methods have some influence on the type and the content of the volatile components in Achyranthes bidentatae Radix. Using HS-SPME-GC-MS combination technique can quickly and effectively obtain the volatile components information for Achyranthes bidentatae Radix, which can provide scientific reference for the quality evaluation and application of the processed products of Achyranthes bidentatae Radix.