AIM : To study the volatile oil of GanluXiaodu Granules GLXD (Talcum, Herba Artemisiae Scopariae, Radix Scutellariae etc. ) and establish it's fingerprint. METHODS: By capillary gas chromatography. RESULTS: The fingerprints of volatile oil in Ganlu Xiaodu Granules were composed of 56 peaks, among which there were 17 characteristic peaks, having 86.97% of total area of the whole fingerprints peaks. The average RSD of retention time of characteristic peaks was 0.33% , that of peak-area was 2.76%. CONCLUSION: The fingerprints of volati...