Xin LI, Li-ying TANG, Jing XU, et al. Analysis and Identification of Chemical Components in Trichosanthis Fructus by UPLC-LTQ-Orbitrap-MS[J]. Chinese journal of experimental traditional medical formulae, 2019, 25(1): 201-210.
DOI:
Xin LI, Li-ying TANG, Jing XU, et al. Analysis and Identification of Chemical Components in Trichosanthis Fructus by UPLC-LTQ-Orbitrap-MS[J]. Chinese journal of experimental traditional medical formulae, 2019, 25(1): 201-210. DOI: 10.13422/j.cnki.syfjx.20181715.
Analysis and Identification of Chemical Components in Trichosanthis Fructus by UPLC-LTQ-Orbitrap-MS
To analysis and identify the chemical components in Trichosanthis Fructus by UPLC-LTQ-Orbitrap-MS.
Method:
2
Samples of Trichosanthis Fructus were extracted by ultrasonic with 70% methanol after smashing and sifting by 40 mesh sieve. Thermo Scientific™ Dionex™ UltiMate™ 3000 Rapid Separation LC system performed UPLC separations with Waters HSS T3-C
18
(2.1 mm×100 mm
1.8 μm) column. The mobile phase was 0.1% formic acid water(A)-methanol(B)with a gradient elution. The volume flow was 0.3 mL·min
-1
. A Thermo Scientific™ LTQ-Orbitrap mass spectrometer equipped with a ESI probe was employed. The samples were respectively scanned in MS
1
and MS
2
mode of positive and negative ions. According to the chromatographic peak separation
mass signal intensity
and the number of molecular ions in MS
1
model
the extraction condition
chromatogram and mass spectrum parameters were optimized. The chemical compounds were identified by the accurate mass measurement of molecular ions and fragment ion and comparation with reference substance.
Result:
2
91 chemical compositions in Trichosanthis Fructus were totally identified
including 14 amino acids
5 monoterpenoids
5 tetracyclic triterpenoids
1 pentacyclic triterpene
14 flavonoids
17 organic acids
3 polysaccharides
7 nucleotides
7 alkaloids and nitrogen compounds
2 volatile components
1 phytosterol
5 other compositions.
Conclusion:
2
The established UPLC-LTQ-Orbitrap-MS method can be used to quickly analyze and identify the main chemical constituents of Trichosanthis Fructus. The chemical information concerning the constituents in Trichosanthis Fructus could be helpful to the quality control and further studies of Trichosanthis Fructus.
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