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液相色谱-质谱联用法测定人血浆中氯吡格雷及其3种代谢产物
的浓度 Δ
刘职瑞 ,姚 璞,杨 波,王 瑜,冯 伟,孙凤军(陆军军医大学第一附属医院药剂科,重庆 400038)
#
*
中图分类号 R969.1 文献标志码 A 文章编号 1001-0408(2019)21-2946-06
DOI 10.6039/j.issn.1001-0408.2019.21.14
摘 要 目的:建立同时测定人血浆中氯吡格雷(CLP)及其中间代谢产物2-氧-氯吡格雷(2-O-CLP)、非活性代谢产物氯吡格雷羧
酸代谢物(CLPCA)和活性代谢产物氯吡格雷硫醇代谢物(CLPTM)浓度的方法。 方法:选取陆军军医大学第一附属医院确诊为
脑卒中的90名患者,早晨空腹口服1片氯吡格雷片(75 mg/片),于服药2 h后采集血样,将CLPTM经2-溴-3’-甲氧基苯乙酮衍生形
成CLPTM-D后与其余3种待测物一起通过乙腈蛋白沉淀提取后,采用液相色谱-串联质谱法(LC-MS/MS)测定其浓度。色谱柱为
Agilent poroshell 120 EC-C18,流动相为0.1%甲酸的乙腈溶液-0.1%甲酸水溶液(90 ∶ 10,V/V),采用多反应监测模式进行正离子检
测,检测离子对分别为 CLPCA 质荷比(m/z)308.1→198.1、CLP m/z 322.3→212.0、2-O-CLP m/z 338.3→155.0、CLPTM-D m/z
504.4→354.1、内标噻氯吡啶 m/z 264.0→154.1。结果:CLPCA、CLP、2-O-CLP、CLPTM-D 和内标的保留时间分别为 2.01、3.32、
2.83、2.68、1.87 min,CLPCA、CLP、2-O-CLP、CLPTM-D 检测质量浓度的线性范围分别为 100~10 000、0.2~20、0.3~30、0.5~50
ng/mL(r 均≥0.999 5),日内、日间精密度试验的 RSD 均≤9.5%(n=5),准确度为 93.5%~98.9%(n=5),提取回收率为 85.4%~
95.9%(n=5),基质效应的 CV 为 2.7%~6.2%(n=5)。稳定性(-80 ℃放置 3 个月、3 次冷冻-解冻循环、4 ℃放置 8 h)试验中,
CLPCA、CLP、2-O-CLP和CLPTM-D的RE均≤10.0%(n=5)。结论:建立的LC-MS/MS法特异性强,测定结果准确可靠,可用于
检测人血浆中CLP及其3种代谢产物的浓度。
关键词 液相色谱-串联质谱法;氯吡格雷;代谢产物;血浆浓度
Determination of Clopidogrel and Its Three Metabolites Concentrations in Human Plasma by LC-MS/MS
LIU Zhirui,YAO Pu,YANG Bo,WANG Yu,FENG Wei,SUN Fengjun(Dept. of Pharmacy,the First Affiliated
Hospital of Army Medical University,Chongqing 400038,China)
ABSTRACT OBJECTIVE:To establish the method for simultaneous determination of clopidogrel (CLP),its intermediate
metabolite(2-O-CLP),inactive metabolite(CLPCA)and active metabolite(CLPTM)in human plasma. METHODS:Totally 90
patients diagnosed as stroke were selected from the First Affiliated Hospital of Army Medical University. They were given one CLP
tablet(75 mg/tablet)orally on an empty stomach in the morning. Blood samples were collected 2 h after taking the tablet. CLPTM-
D was formed by derivation of CLPTM with 2-bromo-3’-methoxyacetophenone and extracted by precipitation of acetonitrile protein
together with the other three substances to be measured. LC-MS/MS method was adopted. The determination was performed on
Agilent poroshell 120 EC-C18 column with mobile phase consisted of acetonitrile(0.1% formic acid)and water(0.1% formic acid)
(90 ∶ 10,V/V). The quantitation analysis was performed using multiple reaction monitoring at the specific ion transitions of m/z
308.1→198.1 (CLPCA), 322.3→212.0 (CLP), 338.3→155.0 (2-O-CLP), 504.4→354.1 (CLPTM-D) and 264.0→154.1
(ticlopidine,internal standard),respectively. RESULTS:The retention time of CLPCA,CLP,2-O-CLP,CLPTM-D and internal
standard were 2.01,3.32,2.83,2.68,1.87 min,respectively. The linear range of CLPCA,CLP,2-O-CLP and CLPTM-D were
100-10 000,0.2-20,0.3-30,0.5-50 ng/mL(all r≥0.999 5). The intra-day and inter-day RSD were all less than 9.5%(n=5).
Accuracy ranged from 93.5%-98.9%(n=5),and extraction recovery was from 85.4% to 95.9%(n=5). The matrix effect ranged
from 2.7%-6.2%(n=5). In stability tests(storing at -80 ℃ for 3 months,3 freeze-thaw cycles,storing at 4 ℃ for 8 h),RE of
CLP,CLPCA and CLPTM-D were all lower than 10.0% (n=5). CONCLUSIONS:Established LC-MS/MS method has the
advantages of high specificity,accuracy and reliability,and can be used to detect the concentration of CLP and its three
metabolites in human plasma.
KEYWORDS LC-MS/MS;Clopidogrel;Metabolites;Plasma concentration
氯吡格雷(Clopidogrel,CLP)是临床广泛使用的血
Δ 基金项目:重庆市社会事业与民生保障科技创新专项(No.
cstc2016shms-ztzx10004) 小板受体抑制剂,主要用于脑卒中、急性冠状动脉综合
*主管药师。研究方向:药动学。电话:023-68765991。E-mail: 征等循环障碍疾病的治疗。CLP为前体药物,本身不具
zhirui_liu2013@163.com
活性,需经过代谢转化为活性形式才能发挥抗血小板作
# 通信作者:副主任药师,博士。研究方向:治疗药物浓度监测。
电话:023-68765991。E-mail:fengj_sun@163.com 用。CLP经口服吸收后在肝脏内迅速代谢,其中约85%
·2946 · China Pharmacy 2019 Vol. 30 No. 21 中国药房 2019年第30卷第21期