PMID- 34994136 OWN - NLM STAT- MEDLINE DCOM- 20220110 LR - 20220110 IS - 1001-5302 (Print) IS - 1001-5302 (Linking) VI - 46 IP - 24 DP - 2021 Dec TI - [Qualitative and quantitative analysis of alkaloids in Eurycoma longifolia by HPLC-Q-TOF-MS combined with UPLC-QQQ-MS/MS]. PG - 6435-6446 LID - 10.19540/j.cnki.cjcmm.20210802.202 [doi] AB - A sensitive and efficient method was established and validated for qualitative and quantitative analysis of total alkaloids from the extract of Eurycoma longifolia by high-performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry(HPLC-Q-TOF-MS) combined with ultra-performance liquid chromatography coupled with triple quadrupole tandem mass spectrometry(UPLC-QQQ-MS/MS). The HPLC-Q-TOF-MS conditions are as follows: Welch Ultimate XB-C_(18) column(4.6 mmx250 mm, 5 mum) with acetonitrile(containing 0.1% formic acid)-0.1% formic acid in water as mobile phase for gradient elution. The UPLC-QQQ-MS/MS conditions are as below: Agilent Eclipse Plus C_(18) column(2.1 mmx50 mm, 1.8 mum) with acetonitrile(containing 0.1% formic acid) and 0.1% formic acid in water as mobile phase for gradient elution. MS data were collected by electrospray ionization in positive ion mode. According to the comparison with reference standards and the accurate masses of molecules, a total of 17 alkaloids in E. longifolia extract were identified by HPLC-Q-TOF-MS. The UPLC-QQQ-MS/MS quantitative analysis result of 3 alkaloids showed that the linear ranges of them were good(r>/=0.999 7) and the overall recoveries ranged from 108.8%-110.2%, with RSDs of 2.9%-5.3%. The method is accurate, reliable, and efficient, which can comprehensively reflect the constituents and content of alkaloids in E. longifolia. The result can serve as a reference for further elucidating its therapeutic material basis and quality control. FAU - Chen, Xiu-Ming AU - Chen XM AD - Fujian Provincial Key Laboratory of Screening for Novel Microbial Products, Fujian Institute of Microbiology Fuzhou 350007, China. FAU - Lin, Bin AU - Lin B AD - Fujian Provincial Key Laboratory of Screening for Novel Microbial Products, Fujian Institute of Microbiology Fuzhou 350007, China. FAU - Fang, Dong-Sheng AU - Fang DS AD - Fujian Provincial Key Laboratory of Screening for Novel Microbial Products, Fujian Institute of Microbiology Fuzhou 350007, China. LA - chi PT - Journal Article PL - China TA - Zhongguo Zhong Yao Za Zhi JT - Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica JID - 8913656 RN - 0 (Alkaloids) SB - IM MH - *Alkaloids MH - Chromatography, High Pressure Liquid MH - Chromatography, Liquid MH - *Eurycoma MH - Tandem Mass Spectrometry OTO - NOTNLM OT - Eurycoma longifolia OT - HPLC-Q-TOF-MS OT - UPLC-QQQ-MS/MS OT - alkaloid OT - qualitative analysis OT - quantitative analysis EDAT- 2022/01/08 06:00 MHDA- 2022/01/11 06:00 CRDT- 2022/01/07 06:59 PHST- 2022/01/07 06:59 [entrez] PHST- 2022/01/08 06:00 [pubmed] PHST- 2022/01/11 06:00 [medline] AID - 10.19540/j.cnki.cjcmm.20210802.202 [doi] PST - ppublish SO - Zhongguo Zhong Yao Za Zhi. 2021 Dec;46(24):6435-6446. doi: 10.19540/j.cnki.cjcmm.20210802.202.