Page 63 - 《中国药房》2023年18期
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·药物与临床·


          咖啡因及代谢产物的尿药浓度测定方法建立及临床应用
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          陈相龙    1, 2* ,赵 杨 ,黄琼叶 ,徐铭卿 ,李 悦 ,陆 超 ,孙鲁宁 ,王永庆 (1.徐州医科大学药学院/江苏省
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          新药研究与临床药学重点实验室,江苏 徐州 210004;2.南京医科大学第一附属医院临床药理研究室,南京
          210029;3.江苏省妇幼保健院儿科,南京 210036)
          中图分类号  R969.1      文献标志码  A      文章编号  1001-0408(2023)18-2233-05
          DOI  10.6039/j.issn.1001-0408.2023.18.11
          摘  要  目的  建立同时测定尿液中咖啡因及 3 种代谢产物茶碱、副黄嘌呤和可可碱浓度的方法并应用于临床。方法  以咖啡
          因- C3-d3为内标,尿液样本经乙腈沉淀蛋白后,采用高效液相色谱-串联质谱(HPLC-MS/MS)技术测定咖啡因及3种代谢产物的
            13
          浓度。以Waters ACQUITY UPLC  BEH HILIC为色谱柱,60 mmol/L乙酸铵溶液(A)-乙腈(B)为流动相进行梯度洗脱,流速为0.5
                                   ®
          mL/min,柱温为 38 ℃,进样量为 2 μL。采用电喷雾离子源,以多反应监测模式进行正离子扫描,用于定量分析的离子对分别为
          m/z 195.1→110.0(咖啡因)、m/z 181.1→124.0(茶碱)、m/z 181.1→124.0(副黄嘌呤)、m/z 181.1→138.0(可可碱)、m/z 198.1→140.1
         (内标)。采用上述方法测定19例早产儿呼吸暂停(AOP)患儿尿液中咖啡因及3种代谢产物的浓度。结果  咖啡因、茶碱、副黄嘌
          呤、可可碱检测质量浓度的线性范围分别为0.200~200、0.050~50.0、0.050~50.0、0.100~100 μg/mL(r均大于0.990),定量下限分
          别为 0.200、0.050、0.050、0.100 μg/mL;日内、日间精密度的 RSD 均不高于 10.37%,基质因子为 85.68%~109.90%,提取回收率为
          93.53%~109.40%(RSD均小于15%),稳定性试验的RSD均小于15%。19例AOP患儿尿液中咖啡因及3种代谢产物的质量浓度
          分别为(27.346±7.951)、(0.351±0.223)、(0.428±0.395)、(0.472±0.374)μg/mL。结论  所建 HPLC-MS/MS 法操作简单、灵敏度
          高,可用于AOP患儿尿液中咖啡因及3种代谢产物浓度的测定。
          关键词  咖啡因;代谢产物;早产儿呼吸暂停;尿药浓度;高效液相色谱-串联质谱法

          Method  establishment  and  clinical  practice  for  concentration  determination  of  caffeine  and  its  metabolites
          in urine
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          CHEN Xianglong ,ZHAO Yang ,HUANG Qiongye ,XU Mingqing ,LI Yue ,LU Chao ,SUN Luning ,WANG
                         1, 2
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          Yongqing (1.  School  of  Pharmacy/Jiangsu  Key  Laboratory  of  New  Drug  Research  and  Clinical  Pharmacy,
                  1, 2
          Xuzhou  Medical  University,  Jiangsu  Xuzhou  210004,  China;2.  Research  Division  of  Clinical  Pharmacology,
          the  First  Affiliated  Hospital  of  Nanjing  Medical  University,  Nanjing  210029,  China;3.  Dept.  of  Pediatrics,
          Jiangsu Women and Children Health Hospital, Nanjing 210036, China)
          ABSTRACT   OBJECTIVE  To  establish  a  method  for  concentration  determination  of  caffeine  and  its  three  metabolites,
          theophylline, paraxanthine and theobromine in urine, and apply it in clinical practice. METHODS Using caffeine- C3-d3 as internal
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          standard (IS),  and  the  urine  samples  were  protein  precipitated  with  acetonitrile;  HPLC-MS/MS  method  was  adopted  to  determine
          the concentrations of caffeine and its three metabolites. The determination was performed on Waters ACQUITY UPLC  BEH HILIC
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          column  with  mobile  phase  consisting  of  60  mmol/L  ammonium  acetate (A)-acetonitrile (B) (gradient  elution)  at  the  flow  rate  of
          0.5  mL/min.  The  column  temperature  was  set  at  38  ℃,  and  the  sample  size  was  2  μL.  The  electrospray  ionization  detection  was
          operated in a positive mode by multiple reaction monitoring. The detection ions for quantitative analysis were m/z 195.1→110.0 for
          caffeine,  m/z  181.1→124.0  for  theophylline,  m/z  181.1→124.0  for  paraxanthine,  m/z  181.1→138.0  for  theobromine,  and  m/z  198.1→
          140.1  for  IS.  The  above  method  was  used  to  determine  the  concentrations  of  caffeine  and  its  three  metabolites  in  the  urine  of  19
          infants  with  apnea  of  prematurity (AOP).  RESULTS  The  linear  ranges  of  mass  concentration  of  caffeine,  theophylline,
                                                             paraxanthin  and  theobromine  were  0.200-200,  0.050-50.0,
             Δ 基金项目 国家卫生健康委计划生育药具不良反应监测中心/江                  0.050  0-50.0,  and  0.100-100  μg/mL,  respectively.  The  lower
          苏 省 卫 生 健 康 发 展 研 究 中 心 开 放 课 题(No. JSHD2021004,No.
                                                             limits  of  quantification  were  0.200,  0.050,  0.050  and  0.100
          JSHD2021011)
                                                             μg/mL (r>0.990),  respectively.  RSDs  of  intra-day  and  intra-
             *第一作者 硕士研究生。研究方向:临床药学。电话:025-
          68305001。E-mail:820695430@qq.com                   day precision were not above 10.37%, and matrix factors were
             #a 通信作者 副主任药师,副教授,硕士生导师,博士。研究方向:                85.68%-109.90%;  extraction  recoveries  were  93.53%-109.40%
          体内药物分析、临床药理学。E-mail:sunluning0521@aliyun.com      (RSD≤15%), and RSDs of stability tests were all lower than
             #b 通信作者 主任药师,教授,博士生导师,博士。研究方向:临床                15%.  The  concentrations  of  caffeine  and  its  three  metabolites
          药学、临床药理学。电话:025-68307601。E-mail:wyqjsph@163.com    in  the  urine  of  19  cases  were (27.346±7.951), (0.351±


          中国药房  2023年第34卷第18期                                              China Pharmacy  2023 Vol. 34  No. 18    · 2233 ·
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