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·药物与临床·


          LC-MS/MS法同时测定人乳汁中贝他斯汀和羟氯喹的浓度                                                             Δ


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                                  1
          白梦如 ,申 潜 ,马志媛 ,王 刚 (1.杭州市第一人民医院药学部,杭州 310006;2.浙江省食品药品检验研
                                          1 #
                 1*
          究院国家药品监督管理局仿制药评价关键技术重点实验室,杭州 310052)
          中图分类号  R969.1      文献标志码  A      文章编号  1001-0408(2024)11-1363-06
          DOI  10.6039/j.issn.1001-0408.2024.11.14


          摘  要  目的  建立同时测定人乳汁中贝他斯汀和羟氯喹浓度的液相色谱-质谱联用(LC-MS/MS)方法并应用于临床。方法  向
          50 μL 乳汁样品中加入 200 μL 含内标(100 ng/mL 氯喹)的甲醇,涡旋沉淀蛋白后离心取上清液进样分析。色谱柱为 Waters
          ACQUITY UPLC HSS T3柱,流动相为0.1%甲酸-10 mmol/L乙酸铵溶液(A相)和甲醇(B相)(梯度洗脱),流速为0.35 mL/min,进
          样量为2 μL,分析时间为4 min。采用电喷雾离子源,正离子多反应监测模式扫描,定量分析离子对分别为m/z 388.9→201.9(贝他
          斯汀)、m/z 336.3→247.1(羟氯喹)和 m/z 320.2→247.2(氯喹)。对所建 LC-MS/MS 法进行方法学考察,并用于检测 1 例哺乳期患
          者乳汁中的药物浓度。结果  贝他斯汀在2~200 ng/mL(r=0.999)、羟氯喹在50~1 000 ng/mL(r=0.998)范围内线性关系良好。

          贝他斯汀和羟氯喹质控样本的批内、批间精密度均小于15%,准确度、提取回收率、基质效应和稳定性均符合生物样品定量分析方
          法验证要求。哺乳期患者乳汁中的药物浓度检测结果显示,该患者服药 2 h 和 14 h 后乳汁中贝他斯汀的浓度分别为 34.95、5.72
          ng/mL,羟氯喹分别为211.92、104.18 ng/mL,推算出相对婴儿剂量分别为1.83%、0.56%。结论  该方法操作简便、快速、灵敏度高,
          适用于人乳汁中贝他斯汀和羟氯喹浓度的同时测定,可为临床哺乳期的安全用药提供参考。
          关键词  贝他斯汀;羟氯喹;乳汁;哺乳期;药物浓度;液相色谱-质谱联用技术

          Simultaneous  determination  of  bepotastine  and  hydroxychloroquine  concentrations  in  human  breast  milk
          by LC-MS/MS

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          BAI Mengru ,SHEN Qian ,MA Zhiyuan ,WANG Gang(1.  Dept.  of  Pharmacy,  Hangzhou  First  People’s
                                                              1
          Hospital,  Hangzhou  310006,  China;2.  NMPA  Key  Laboratory  for  Core  Technology  of  Generic  Drug
          Evaluation, Zhejiang Institute for Food and Drug Control, Hangzhou 310052, China)
          ABSTRACT   OBJECTIVE  To  establish  a  liquid  chromatography-tandem  mass  spectrometry (LC-MS/MS)  method  for  the
          simultaneous  determination  of  bepotastine  and  hydroxychloroquine  concentrations  in  human  breast  milk  and  apply  it  in  clinical
          practice. METHODS The milk samples (50 μL) were precipitated with 200 μL methanol containing the internal standard (100 ng/mL
          chloroquine),  and  the  supernatant  was  taken  for  analysis  after  vortexing  and  centrifugation.  The  separation  was  performed  on  a
          Waters ACQUITY UPLC HSS T3 column with mobile phase consisted of 0.1% formic acid-10 mmol/L ammonium acetate solution
         (phase A) and methanol (phase B) at gradient elution of 0.35 mL/min. The injection volume was 2 μL, and the analysis time was
          4 min. The detection of the analytes was performed by electrospray ionization in positive mode by multiple reaction monitoring with
          the  transition  of  m/z  388.9→201.9 (bepotastine),  m/z  336.3→247.1 (hydroxychloroquine),  and  m/z  320.2→247.2 (chloroquine).
          The established LC-MS/MS method was researched in methodology and used to determine the drug concentrations in the breast milk
          of  1  case  of  lactating  patient.  RESULTS  The  linear  range  of  bepotastine  was  2-200  ng/mL(r=0.999),  and  hydroxychloroquine

          was  50-1  000  ng/mL(r=0.998).  The  intra-assay  and  inter-assay  precisions  were  both  ≤15%,  and  the  accuracy,  extraction

          recovery, matrix effect, and stability all met the acceptance criteria for bioanalytical method validation. The concentration result of
                                                             bepotastine  and  hydroxychloroquine  in  the  breast  milk  of  the

             Δ 基金项目 国家自然科学基金项目(No.82003838);浙江省自然            lactating patient showed, after 2 h and 14 h, the concentrations
          科学基金项目(No.LY22H310006);浙江省卫生健康科技计划项目               of bepotastine in the breast milk of the patient were 34.95 ng/mL
         (No.2021RC021);杭州市医药卫生科技项目(No.A20210336)            and  5.72  ng/mL;  those  of  hydroxychloroquine  were  211.92
             *第一作者 主管药师,硕士生导师,博士。研究方向:临床药学、
          体内药物分析。E-mail:mengrbai@qq.com                      ng/mL  and  104.18  ng/mL,  respectively.  The  relative  infant
             #  通信作者 主 任 药 师 。 研 究 方 向 :临 床 药 学 。 E-mail:    doses  were  1.83%  and  0.56%,  respectively.  CONCLUSIONS
          88485534@163.com                                   The  established  method  is  simple,  rapid,  and  sensitive.  It  is


          中国药房  2024年第35卷第11期                                              China Pharmacy  2024 Vol. 35  No. 11    · 1363 ·
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