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作 者:雍莉[1] 王宇[2] 邹晓莉[2] 朱岚[1] 谢蟪旭[3] 李龙江[3]
机构地区:[1]四川省疾病预防控制中心,成都610041 [2]四川大学华西公共卫生学院卫生检验学教研室,成都610041 [3]四川大学口腔疾病研究国家重点实验室,成都610041
出 处:《四川大学学报(医学版)》2014年第1期142-146,共5页Journal of Sichuan University(Medical Sciences)
基 金:国家自然科学基金项目(No.81172578)资助
摘 要:目的建立高效液相色谱-质谱-质谱联用(HPLC/MS/MS)同时测定血浆中的肾上腺素、去甲。肾上腺素、可的松和氢化可的松的方法。方法样品经乙腈沉淀蛋白和萃取后,15000r/min离心5min,取上清液进样分析。电喷雾离子源(ESI),正离子检测,多反应监测(MRM)方式定量分析。结果肾上腺素、去甲肾上腺素、可的松和氢化可的松在0.02~200.00ng/mL浓度范围内线性良好(相关系数均≥0.999),检出限分别为4.13pg/mL、4.64pg/mL、4.29pg/mL和4.52pg/mL,日内和日间精密度分别为1.19%~5.42%和2.16%~6.04%;将所建立的方法用于空白人血浆样品分析,加标回收率为80.0%~109.0%,样品测定精密度为3.93%~7.57%。结论本研究所建立的方法快速灵敏,适合血浆样品的批量分析。Objective To develop a method for simultaneous determination of adrenaline, noradrenaline, cortisone and eortisol in plasma using HPLC/MS/MS. Methods Sample proteins were precipitated with acetonitrile and the sample solution was inieeted into HPLC/MS/MS after centrifugation at 15 000 r/min for 5 min. Electrospray ionization (ESI) and the positive ion detection were applied with a multiple reaction monitoring (MRM) mode for quantitative analyses. Results Under the optimal conditions, good linearity (r〉0. 999) was observed in the range of 0. 02-200. 00 ng/mL of target compounds. The detection limit reached 4.13 pg/mL, 4.64 pg/mL, 4.29 pg/mL and 4.52 pg/mL for adrenaline, noradrenaline, cortisone and cortisol respectively. The inter-day and intra-day precisions ranged from 1.19%-5.42% and 2.16%-6.04% respectively. Satisfied results were achieved using human plasma samples, with a spiked recovery in the range of 80.0%-109.0% and a relative standard deviation of 3.93%-7.57N. Conclusion The proposed method is quick, sensitive and suitable for batch analyses of plasma samples.
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