Identification of chemical constituents in Naozhenning granule by UHPLC coupled with hybrid quadrupole-orbitrap MS / 药学学报

Naozhenning granule, which is composed of 11 herbal drugs, is mainly used in the treatment of concussion, cerebral post-traumatic syndrome. As the chemical composition of Naozhenning was complex, the ultrahigh performance liquid chromatography coupled with hybrid quadrupole-orbitrap mass spectrometry was applied to identify the chemical constituents rapidly in the Naozhenning granule. By analyzing the retention behaviors, accurate molecular weight, the fragmentation pathway, and comparison with the MS data from the standards and references, as well as the automatic identification by the Compound Discover 2.0, a total of 161 compounds were identified or tentatively deduced, and the sources of constituents were also confirmed. The compounds identified in Naozhenning granule included 9 iridoids, 8 butylphthalides, 26 flavonoids and flavonoid glycosides, 8 phenolic acids, 8 monoterpenoid glycosides and 9 alkaloids, as well as the common compounds in the herbal drugs, such as organic acids, amino acids, and sugars. The chemical composition of Naozhenning was studied for the first time, which provides a scientific basis for the quality control and document of effective materials of Naozhenning granule.

Rapid identification of chemical constituents in Huangqi Jianzhong Tang by UHPLC coupled with hybrid quadrupole-orbitrap MS / 药学学报

This study was designed to establish an ultra-liquid chromatography-mass spectrometry method for the reliable identification the multiple chemical components in Huangqi Jianzhong Tang (HQJZ). The ultra-high performance liquid chromatography coupled with hybrid quadrupole-orbitrap mass spectrometry method was applied to identify the chemical constituents in the HQJZ rapidly. A total of 71 compounds including two major categories of saponins and flavonoids were identified or tentatively deduced on the basis of their retention behaviors, fragments of multistage mass spectrometry or by comparing with reference substances and literatures. Among them, 20 compounds were from Astragali Radix, 14 were from Paeoniae Radix Alba, 37 were from Glycyrrhizae Radix et Rhizoma Praeparata cum Melle, 3 were from Rhizoma Zingiberis Recens, 2 were from Cinnamomi Ramulus and Jujubae Fructus, respectively. The LC-MS method was used to qualitatively analyze the chemical constituents of HQJZ, which provides a scientific basis for the quality control of HQJZ.