The invention discloses a method for detecting
terpene lactones in a
ginkgo biloba extract. The
ginkgo biloba extract is the
raw material and is stirred and extracted through
ethyl acetate in a magnetic mode, and a solution is obtained; rotation
steaming and concentration are conducted on the solution until the solution is dried, methyl
alcohol is used for
dissolution, ultrasonic treatment is conducted, the solution serves as a detection sample, and a
high performance liquid chromatography-evaporative light-scattering
detector is use for analyzing and detecting. According to the method, a detection result is consistent with a detection result in a
Chinese pharmacopoeia method, in extracting and separating of the
terpene lactones of the
ginkgo biloba, the method is more convenient to use and practical. The time for detecting each sample is lower than 12 min (time consumed in the
Chinese pharmacopoeia method is 45 min), the detection efficiency is greatly improved, a test cycle is shortened, cost is saved, and the method is economical and
environmentally friendly. The method can be used for qualitative and quantitative analysis of the lactones of the
ginkgo biloba. It is verified and shown by the methodology that the method is good in separating effect, and the requirements for method
linearity, stability,
repeatability, the sample adding recycling rate and the like are met. The method is further suitable for detecting preparations with one or more kinds of
ginkgo biloba terpene lactones as the
raw material, suitable for industrial production and application and large in application value.