Hou XR, Wan LL, Zhan ZJ, Li CP, Shan WG. Analysis and determination of diterpenoids in unprocessed and processed
Euphorbia lathyris seeds by HPLC-ESI-MS.
J Pharm Anal 2011;
1:197-202. [PMID:
29403699 PMCID:
PMC5760800 DOI:
10.1016/j.jpha.2011.06.003]
[Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2011] [Accepted: 06/01/2011] [Indexed: 10/27/2022] Open
Abstract
Euphorbia lathyris (Caper spurge) is a toxic and potent Chinese materia medica (T/PCMM). This study sought a method for identifying five diterpenoids (Euphorbia factors L1-L3, L7a and L8) with the spectra of UV and mass, quantifying three diterpenoids L1, L2, and L8 in crude extracts of unprocessed and processed E. lathyris seeds by liquid chromatography/electrospray ionization mass spectrometry (LC-ESI-MS). The analysis was achieved on an Agilent Eclipse XDB-C18 column (4.6 mm×150 mm i.d., 5 μm) with an isocratic elution with a mobile phase consisting of water and acetonitrile at a flow rate of 0.25 mL/min at column temperature of 30 °C and UV detection was set at 272 nm. An ESI source was used with a positive ionization mode. The calibration curve was linear in the ranges of 9.9-79 μg/mL for Euphorbia factor L1, 3.8-30.5 μg/mL for Euphorbia factor L2, and 1.0-20.6 μg/mL for Euphorbia factor L8. The average recoveries (n=6) of three diterpenoids were 98.39%, 91.10% and 96.94%, respectively, with RSD of 2.5%, 2.4% and 2.1%, respectively. The contents of the three diterpenoids in processed E. lathyris seeds were 3.435, 1.367 and 0.286 mg/g, respectively, which decreased more sharply than those in unprocessed E. lathyris seeds which were 4.915, 1.944 and 0.425 mg/g, respectively. The method is simple, accurate, reliable and reproducible, and it can be applied to control the quality of unprocessed and processed E. lathyris seeds.
Collapse