一种液体染色学喷射电离电离联质谱法,用于量化大麻衍生产品中最多18种大麻素的数量
Grant Meyer1, Mojisola Adisa1, Zachary Dodson1
1Department of Chemistry, Western Illinois University, Macomb, IL 61455, USA.
Journal of pharmaceutical and biomedical analysis
|November 17, 2023
概括
精确量化最多18种大麻素,包括结构异构体,如Δ8和Δ9-四大麻素 (THC),需要进行基线分离. 这种经过验证的方法分析了各种大麻产品,确保可靠的大麻素测量.
科学领域:
- 分析化学 分析化学
- 药理学 药理学是指药理学的学科.
- 法医科学 法医科学 法医科学
背景情况:
- 现有的LC-ESI/MS/MS方法往往无法区分大麻素的结构异构体,特别是 Δ8 - 和 Δ9 - 四大麻素 (THC).
- 这种局限性导致了开发方法,只能量化有限数量的大麻素,不包括关键异构体.
- 使用具有多重反应监测 (MRM) 的三重四极质谱仪可能会导致对同位素分化的误解.
研究的目的:
- 开发和验证一种可靠的LC-ESI/MS/MS方法,用于量化最多18种大麻素.
- 为了解决对大麻素结构异构体,特别是THC异构体的差异化挑战,以便准确量化.
- 将验证的方法应用于广泛的麻衍生产品.
主要方法:
- 开发一种使用四极飞行时间 (QTOF) 质谱仪的液体色谱-电子喷雾电离-并联质谱法 (LC-ESI/MS/MS) 方法.
- 实现大麻素结构异构体的基线分离,以确保准确的量化.
- 根据ISO 17025指南验证该方法.
- 实时跟踪提取回收和矩阵效应使用尖端异常大麻素 (ACBD) 和ACBD-d.
主要成果:
- 达到了最多18种大麻素的量化,超过了以前的限制.
- 该研究证实,三重四极系统上的MRM不能确定区分THC的结构异构体,需要基线分离.
- 经过验证的方法证明了高准确度和精度,提取回收 (92.9-106.3%) 和矩阵效应 (91.3-120.2%) 实时跟踪.
- 该方法成功地应用于各种大麻产品,根据样本类型的量化极限 (LOQ) 不同.
结论:
- 基线染色分离对于准确量化大麻素结构异构体至关重要.
- 开发的LC-ESI/MS/MS方法是可靠的和验证的,用于分析广泛的麻衍生产品.
- 这种方法推进了大麻素分析,使最大数量的化合物,包括具有挑战性的异构体,能够得到量化.
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