主管：中华人民共和国司法部
主办：司法鉴定科学研究院
ISSN 1671-2072  CN 31-1863/N
中国司法鉴定

中国司法鉴定 ›› 2022 ›› Issue (5): 51-56.DOI: 10.3969/j.issn.1671-2072.2022.05.006

• 专题研讨：污水中毒品监测 • 上一篇    下一篇

在线固相萃取-超高效液相色谱-串联质谱法测定水体中氯胺酮、去甲氯胺酮和羟亚胺

朱思琪，徐柏杨，诸葛伟伟，等   

  1. 国家毒品实验室浙江分中心（浙江省毒品技术中心） 浙江省禁毒和毒情监测关键技术研究重点实验室，浙江 杭州 310053
  • 收稿日期:2022-04-11 出版日期:2022-09-15 发布日期:2022-10-26
  • 作者简介:朱思琪（1993—），女，助理研究员，硕士，主要从事毒品毒物分析研究。E-mail: siqizhu1993@126.com

Determination of Ketamine, Norketamine and Hydroxylimine in Water Samples by Online SPE-UPLC-MS/MS

ZHU Siqi, XU Boyang, ZHUGE Weiwei, et al   

  1. Zhejiang Provincial Key Laboratory of Drug Monitoring and Control, National Anti-Drug Laboratory Zhejiang Regional Center, Zhejiang Anti-Drug Technology Center, Hangzhou 310053, China
  • Received:2022-04-11 Published:2022-09-15 Online:2022-10-26

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摘要： 目的 建立一种在线固相萃取-超高效液相色谱-串联质谱法（SPE-UPLC-MS/MS）同时测定水体中氯胺酮、去甲氯胺酮和易制毒前体羟亚胺。方法 采用多反应监测（MRM）模式，用Waters Oasis HLB柱（2.1 mm×30 mm，20 μm）进行固相萃取，采用Waters ACQUITY UPLC HSS T3柱（2.1 mm×100 mm，1.8 μm）为固定相，柱温 40 ℃，以乙腈-0.1 %（体积分数）甲酸水溶液为流动相，按梯度洗脱程序进行分离。结果 通过系统的方法学验证，氯胺酮、去甲氯胺酮和羟亚胺的线性范围均为0.2~200 ng/L，相关系数均大于0.999，检出限分别为0.05、0.05、0.02 ng/L，具有较好的专属性、准确性和重复性。结论 基于SPE-UPLC-MS/MS建立了同时测定水体中痕量氯胺酮、去甲氯胺酮和羟亚胺分析的新方法，在13 min内实现了氯胺酮、去甲氯胺酮和羟亚胺的在线萃取、分离和分析全过程，并成功应用于城市污水监测。

关键词: 在线固相萃取, 超高效液相色谱-串联质谱法, 易制毒前体, 氯胺酮, 去甲氯胺酮, 羟亚胺

Abstract: Objective To establish an online solid phase extraction-ultra high performance liquid chromatography tandem mass spectrometry （SPE-UPLC-MS/MS） method for the simultaneous determination of ketamine, norketamine and the precursor of hydroxyimine in water samples. Methods Pretreated by an online SPE column （2.1 mm×30 mm, 20 μm, Waters Oasis HLB）, samples were separated on a Waters ACQUITY UPLC HSS T3 column （2.1 mm×100 mm, 1.8 μm） using gradient elution. The mobile phase consisted of acetonitrile and 0.1 % （volume fraction） formic acid aqueous solution. The multiple reaction monitoring （MRM） mode was used for MS analysis. Results Under the current conditions, the method was fully validated. It showed good specificity, accuracy and repeatability. The linear ranges of ketamine, norketamine and hydroxylimine were all 0.2-200 ng/L, and the limit of detection （LOD） for these analytes were 0.05 ng/L, 0.05 ng/L and 0.02 ng/L, respectively. The correlation coefficients were all more than 0.999. Conclusion Using the established method, the complete process of online extraction, separation and analysis of sewage samples can be finished in 13 minutes. The method has been applied to the monitoring of ketamine, norketamine and hydroxyimine in urban sewage samples successfully.

Key words: online solid phase extraction, UPLC-MS/MS, drug precursor, ketamine, norketamine, hydroxyimine

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