PMID- 20030086 OWN - NLM STAT- MEDLINE DCOM- 20100112 LR - 20191210 IS - 1001-5302 (Print) IS - 1001-5302 (Linking) VI - 34 IP - 18 DP - 2009 Sep TI - [Rapid simultaneous determination of main nucleosides in Cordyceps sinensis with LC-ESI-MS]. PG - 2349-52 AB - OBJECTIVE: To establish an LC-MS method for rapid simultaneous determination of adenine,adenosine and cordycepin in Cordyceps sinensis. METHOD: An electrospray ionization (ESI) interface and selective ion monitoring (SIM) mode were used. The analytical column was a Shimadzu VP-ODS column (2.0 mm x 150 mm) and the mobile phase was water-methanol-formic acid (92:7:1). Methanol was used as extraction solvent and 2-chloroadenosine was used as internal standard for this assay. RESULT: The regression equations and coefficient were Y = 0.07264X + 0.00622 and r = 0.9987 for adenine, Y = 0.1597X + 0.0146 and r = 0.9991 for adenosine, Y = 0.1942X + 0.0186 and r = 0.9994 for cordycepin. The linear range was 0.8-130.0 mg x L(-1), 0.5 - 124.5 mg x L(-1) and 0.5-128.5 mg x L(-1) for adenine, adenosine and cordycepin, respectively. The average recovery was 98.76%, 99.37% and 99.26% for adenine, adenosine and cordycepin, respectively. CONCLUSION: This established method was highly sensitive, fast and selective, which can be used for rapid simultaneous determination of adenine, adenosine and cordycepin in C. sinensis. This method also can be applied for the quality control of C. sinensis. FAU - Zhou, Jufeng AU - Zhou J AD - Department of Biochemistry, Xiangnan College, Chenzhou 423000, China. FAU - Huang, Lanfang AU - Huang L FAU - Guo, Fangqiu AU - Guo F LA - chi PT - Evaluation Study PT - Journal Article PT - Research Support, Non-U.S. Gov't 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 (Nucleosides) SB - IM MH - Animals MH - Chromatography, Liquid/*methods MH - Cordyceps/*chemistry MH - Moths/*chemistry MH - Nucleosides/*chemistry MH - Sensitivity and Specificity MH - Spectrometry, Mass, Electrospray Ionization/*methods EDAT- 2009/12/25 06:00 MHDA- 2010/01/13 06:00 CRDT- 2009/12/25 06:00 PHST- 2009/12/25 06:00 [entrez] PHST- 2009/12/25 06:00 [pubmed] PHST- 2010/01/13 06:00 [medline] PST - ppublish SO - Zhongguo Zhong Yao Za Zhi. 2009 Sep;34(18):2349-52.