职业与健康 ›› 2024, Vol. 40 ›› Issue (18): 2464-2473.

• 论著 • 上一篇    下一篇

LC-MS/MS-IDA-EPI法同时测定中草药及中毒样品中16种吲哚生物碱

黄丽珍, 覃昆飞, 李莜   

  1. 贵港市疾病预防控制中心理化检验科,广西 贵港 537100
  • 收稿日期:2024-06-06 修回日期:2024-06-11 发布日期:2026-03-17
  • 通信作者: 覃昆飞,副主任技师,E-mail:51820520@qq.com
  • 作者简介:黄丽珍,女,副主任技师,主要从事理化检验工作。
  • 基金资助:
    广西壮族自治区卫生健康委员会自筹经费科研课题(Z20211584)

Simultaneous determination of 16 indole alkaloids in Chinese herbal medicine and poisoning samples by LC-MS/MS-IDA-EPI method

HUANG Lizhen, QIN Kunfei, LI You   

  1. Department of Physical and Chemical Laboratory,Guigang Center for Disease Control and Prevention,Guigang,Guangxi 537100,China
  • Received:2024-06-06 Revised:2024-06-11 Published:2026-03-17
  • Contact: QIN Kunfei,Deputy chief technician,E-mail:51820520@qq.com

摘要: 目的 建立液相色谱/三重四极杆质谱-多反应监测-信息依赖性采集-增强产物离子扫描(liquid chromatography tandem mass spectrometry-multiple reaction monitoring-information dependent acquisition-enhanced product ion,LC-MS/MS-IDA-EPI)方法,用于同时测定中草药及中毒样品中16种吲哚类生物碱,包括钩吻碱、吴茱萸生物碱、钩藤生物碱、育亨宾和士的宁等。方法 用氨水溶液-甲醇(体积分数为0.01%)作为流动相,以0.4 mL/min的流速进行梯度洗脱,16种吲哚类生物碱在Phenomenex Kinetex C18色谱柱上分离。采用多反应监测-信息依赖性采集-增强产物离子(multiple reaction monitoring-information dependent acquisition-enhanced product ion,MRM-IDA-EPI)扫描模式进行检测。结果 阳性样品的EPI谱图搜库匹配度均>70%且与标准品的保留时间偏差在±0.1 min内。所有化合物在相应的浓度范围内线性关系良好,相关系数均>0.998,检出限为0.01~4.00(μg/L或μg/kg),定量限为0.04~13.00(μg/L或μg/kg)。平均回收率为83.43%~109.41%,相对标准偏差(relative standard deviations,RSD)为1.70%~4.51%(n=6)。结论 所建立的方法简便快捷、准确、可靠,可用于中草药和中毒样品中16种吲哚类生物碱的快速定性和定量分析。

关键词: 吲哚类生物碱, 液相色谱/三重四极杆质谱, 多反应监测-信息依赖性采集-增强产物离子扫描, 中草药, 中毒样品

Abstract: Objective To establish a liquid chromatography tandem mass spectrometry-multiple reaction monitoring-information dependent acquisition-enhanced product ion(LC-MS/MS-IDA-EPI) method for simultaneous determination of 16 indole alkaloids in Chinese herbal medicine and poisoning samples,including gelsemium elegans alkaloids,evodia rutaecarpa alkaloids,U. rhynchophylla alkaloids,yohimbine,strychnine,etc. Methods The 16 indole alkaloids were separated on a Phenomenex Kinetex C18 column using mobile phases of 0.01% ammonia(v/v) aqueous solution and methanol for gradient elution at a flow rate of 0.4 mL/min. The multiple reaction monitoring-information dependent acquisition-enhanced product ion(MRM-IDA-EPI) scanning modes was used for detection. Results The matching degree of the EPI spectra for the positive samples was greater than 70%,with a deviation in retention time within ±0.1 min. All compounds had good linear relationships within the corresponding concentration range,with correlation coefficients >0.998. The limits of detection and the limit of quantification were 0.01-4.00(μg/L or μg/kg) and 0.04-13.00(μg/L or μg/kg),respectively. The average recovery rate was 83.43% to 109.41%,and the relative standard deviations(RSD) were 1.70% to 4.51%(n=6). Conclusion The established method is simple,rapid,accurate,and reliable,and can be used for the rapid qualitative and quantitative analysis of 16 indole alkaloids in Chinese herbal medicine and poisoning samples.

Key words: Indole alkaloids, Liquid chromatography tandem mass spectrometry, Multiple reaction monitoring-information dependent acquisition-enhanced product ion scan, Chinese herbal medicine, Poisoning samples

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