马永青, 王璐, 刘颖, 李欣欣, 刘永利. Rapid Identification of Chemical Compositions in Duzhong Granules by UPLC-LTQ-Orbitrap-MS Technique[J]. 2019, 38(7): 817-822.DOI: doi:10.3969/j.issn.1004-4957.2019.07.008.
An ultra high performance liquid chromatography coupled with linear ion trap-orbitrap mass spectrometric(UPLC-LTQ-Orbitrap-MS) method was developed for the qualitative analysis of main chemical constituents in Duzhong granules
a Chinese medicine.The sample was ultrasonically extracted with methanol
then separated on a Thermo Scientific Syncronis C18 chromatographic column(100 mm×21 mm
19 μm) by gradient elution with acetonitrile-01% formic acid as mobile phase.The data were collected by using LTQ-Orbitrap-MS in negative ion mode.According to the contrast of the reference standards and the accurate masses of molecules
a total of 25 compounds in Duzhong granules were identified
including 8 iridoids
8 flavonoids
5 phenylpropanoids
3 lignans and 1 non reducing disaccharide.Results showed that
with the advantages of simplicity
rapidness and accuracy
the developed method was suitable for the identification of chemical constituents in Duzhong granules
which provided a reference for the pharmacological basis of further analysis of Duzhong granules.