PMID- 26690105 OWN - NLM STAT- MEDLINE DCOM- 20160928 LR - 20220408 IS - 1420-3049 (Electronic) IS - 1420-3049 (Linking) VI - 20 IP - 12 DP - 2015 Dec 4 TI - Fast Simultaneous Determination of 13 Nucleosides and Nucleobases in Cordyceps sinensis by UHPLC-ESI-MS/MS. PG - 21816-25 LID - 10.3390/molecules201219807 [doi] AB - A reliable ultra-high-performance liquid chromatography-electrospray ionization-tandem mass spectrometry (UHPLC-ESI-MS/MS) method for the fast simultaneous determination of 13 nucleosides and nucleobases in Cordyceps sinensis (C. sinensis) with 2-chloroadenosine as internal standard was developed and validated. Samples were ultrasonically extracted in an ice bath thrice, and the optimum analyte separation was performed on an ACQUITY UPLC(TM) HSS C18 column (100 mm x 2.1 mm, 1.8 mum) with gradient elution. All targeted analytes were separated in 5.5 min. Furthermore, all calibration curves showed good linear regression (r > 0.9970) within the test ranges, and the limits of quantitation and detection of the 13 analytes were less than 150 and 75 ng/mL, respectively. The relative standard deviations (RSDs) of intra- and inter-day precisions were <6.23%. Recoveries of the quantified analytes ranged within 85.3%-117.3%, with RSD < 6.18%. The developed UHPLC-ESI-MS/MS method was successfully applied to determine nucleosides and nucleobases in 11 batches of C. sinensis samples from different regions in China. The range for the total content in the analyzed samples was 1329-2057 microg/g. FAU - Zong, Shi-Yu AU - Zong SY AD - School of Pharmacy, Shanghai University of Traditional Chinese Medicine, No. 1200 Cailun Road, Pudong New District, Shanghai 201203, China. pashanhan@163.com. AD - Experimental Center of Teaching and Learning, Shanghai University of Traditional Chinese Medicine, No. 1200 Cailun Road, Pudong New District, Shanghai 201203, China. pashanhan@163.com. FAU - Han, Han AU - Han H AD - Experimental Center of Teaching and Learning, Shanghai University of Traditional Chinese Medicine, No. 1200 Cailun Road, Pudong New District, Shanghai 201203, China. pashanhan@163.com. FAU - Wang, Bing AU - Wang B AD - School of Pharmacy, Shanghai University of Traditional Chinese Medicine, No. 1200 Cailun Road, Pudong New District, Shanghai 201203, China. annabel_cn@163.com. AD - Experimental Center of Teaching and Learning, Shanghai University of Traditional Chinese Medicine, No. 1200 Cailun Road, Pudong New District, Shanghai 201203, China. annabel_cn@163.com. FAU - Li, Ning AU - Li N AD - Division of Life Science and Center for Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay Road, Hong Kong, China. mailtolining@gmail.com. FAU - Dong, Tina Ting-Xia AU - Dong TT AD - Division of Life Science and Center for Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay Road, Hong Kong, China. botina@ust.hk. FAU - Zhang, Tong AU - Zhang T AD - School of Pharmacy, Shanghai University of Traditional Chinese Medicine, No. 1200 Cailun Road, Pudong New District, Shanghai 201203, China. zhangtdmj@hotmail.com. AD - Experimental Center of Teaching and Learning, Shanghai University of Traditional Chinese Medicine, No. 1200 Cailun Road, Pudong New District, Shanghai 201203, China. zhangtdmj@hotmail.com. FAU - Tsim, Karl W K AU - Tsim KW AD - Division of Life Science and Center for Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay Road, Hong Kong, China. botsim@ust.hk. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20151204 PL - Switzerland TA - Molecules JT - Molecules (Basel, Switzerland) JID - 100964009 RN - 0 (Nucleosides) RN - 0 (Pyrimidines) SB - IM MH - Calibration MH - Chromatography, High Pressure Liquid MH - Cordyceps/chemistry MH - Limit of Detection MH - Nucleosides/chemistry/*isolation & purification MH - Pyrimidines/chemistry/isolation & purification MH - Spectrometry, Mass, Electrospray Ionization MH - Tandem Mass Spectrometry PMC - PMC6332315 OTO - NOTNLM OT - Cordyceps sinensis OT - UHPLC-ESI-MS/MS OT - nucleobases OT - nucleosides COIS- The authors declare there is no conflict of interest. EDAT- 2015/12/23 06:00 MHDA- 2016/09/30 06:00 PMCR- 2015/12/04 CRDT- 2015/12/23 06:00 PHST- 2015/11/04 00:00 [received] PHST- 2015/11/29 00:00 [revised] PHST- 2015/12/01 00:00 [accepted] PHST- 2015/12/23 06:00 [entrez] PHST- 2015/12/23 06:00 [pubmed] PHST- 2016/09/30 06:00 [medline] PHST- 2015/12/04 00:00 [pmc-release] AID - molecules201219807 [pii] AID - molecules-20-19807 [pii] AID - 10.3390/molecules201219807 [doi] PST - epublish SO - Molecules. 2015 Dec 4;20(12):21816-25. doi: 10.3390/molecules201219807.