Rapid screening and identification of target constituents using full scan-parent ions list-dynamic exclusion acquisition coupled to diagnostic product ions analysis on a hybrid LTQ-Orbitrap mass spectrometer.
A highly sensitive and effective strategy for rapid screening and identification of target constituents has been developed using full scan-parent ions list-dynamic exclusion (FS-PIL-DE) acquisition coupled to diagnostic product ions (DPIs) analysis on a hybrid LTQ-Orbitrap mass spectrometer. The FS-PIL-DE was adopted as a survey scan to trigger the MS/MS acquisition of all the predictable constituents contained in traditional Chinese medicines. Additionally, DPIs analysis can provide a criterion to judge the target constituents detected into certain chemical families. Results from analyzing polymethoxylated flavonoids (PMFs) in the leaves of Citrus reticulata Blanco demonstrated that FS-PIL-DE was capable of targeting a greater number of constituents than FS, FS-PIL and FS-DE, thereby increasing the coverage of constituent screening. As a result, 135 PMFs including 81 polymethoxyflavones, 54 polymethoxyflavanones or polymethoxychalcones were identified preliminarily. And this was the first time to systematically report the presence of PMFs in the leaves of Citrus reticulata Blanco, especially for polymethoxylated flavanones and chalcones, most of which were new compounds. The results indicated that the developed FS-PIL-DE coupled to DPIs analysis methodology could be employed as a rapid, effective technique to screen and identify target constituents from TCMs extracts and other organic matter mixtures whose compounds contained can also be classified into families based on the common carbon skeletons.
Center of Scientific Experiment, Beijing University of Chinese Medicine, 11 East Road of North 3rd Ring, Chaoyang District, Beijing 100029, China; School of Chinese Pharmacy, Beijing University of Chinese Medicine, 6 Wangjing Zhonghuan South Road, Chaoyang District, Beijing 100102, China.
Jia-Yu
JY
Zhang
Center of Scientific Experiment, Beijing University of Chinese Medicine, 11 East Road of North 3rd Ring, Chaoyang District, Beijing 100029, China.
Zi-Jian
ZJ
Wang
Modern Research Center for Traditional Chinese Medicine, Beijing University of Chinese Medicine, 11 East Road of North 3rd Ring, Chaoyang District, Beijing 100029, China.
Qian
Q
Zhang
School of Chinese Pharmacy, Beijing University of Chinese Medicine, 6 Wangjing Zhonghuan South Road, Chaoyang District, Beijing 100102, China.
Fang
F
Wang
School of Chinese Pharmacy, Beijing University of Chinese Medicine, 6 Wangjing Zhonghuan South Road, Chaoyang District, Beijing 100102, China.
Qun
Q
Ma
School of Chinese Pharmacy, Beijing University of Chinese Medicine, 6 Wangjing Zhonghuan South Road, Chaoyang District, Beijing 100102, China.
Zhao-Zhou
ZZ
Lin
Center of Scientific Experiment, Beijing University of Chinese Medicine, 11 East Road of North 3rd Ring, Chaoyang District, Beijing 100029, China. Electronic address: lujq@vip.sina.com.
Jian-Qiu
JQ
Lu
School of Chinese Pharmacy, Beijing University of Chinese Medicine, 6 Wangjing Zhonghuan South Road, Chaoyang District, Beijing 100102, China. Electronic address: yanjiangqiao@sina.com.
Yan-Jiang
YJ
Qiao
D002957:Citrus / Q000737:chemistry*; D044950:Flavanones / Q000032:analysis / Q000737:chemistry; D047309:Flavones / Q000032:analysis / Q000737:chemistry; D005419:Flavonoids / Q000032:analysis* / Q000737:chemistry; D008516:Medicine, Chinese Traditional / Q000379:methods; D015394:Molecular Structure; D018515:Plant Leaves / Q000737:chemistry*; D015203:Reproducibility of Results; D021241:Spectrometry, Mass, Electrospray Ionization / Q000379:methods*; D053719:Tandem Mass Spectrometry / Q000379:methods*
D044950:Flavanones; D047309:Flavones; D005419:Flavonoids
Characterization; Diagnostic product ions (DPIs) analysis; Full scan-parent ions list-dynamic exclusion (FS-PIL-DE) acquisition; Hybrid LTQ-Orbitrap mass spectrometer; Polymethoxyflavonoids (PMFs)