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[Determination of ligustilide in volatile oil from rhizome of ligusticum chuanxiong by RP-HPLC].

OBJECTIVE
To determine Ligustilide in volatile oil from Ligustrcum chuanxiong with RP-HPLC.


METHOD
ODS2 column (4.6 mm x 200 mm, 5 microm) was used and nitrendipine was used as internal standard. The mobil phase consisted methanol, acetontrile and water (33:21:46). The ligustilide was at 275 nm.


RESULT
The linear range was 2.92-29.2 mg x L(-1) for ligustilide. The average recovery of ligustilide was 95.1% and RSD was 2.3%.


CONCLUSION
This method is simple and can be used to determine ligustilide with satisfactory accuracy and reproducibility.