∆8-THC-COOH与大麻素免疫测试工具的交叉反应性以及对色谱测试方法的干扰
Lawrance D Mullen1, E Dale Hart1, Svante Vikingsson1
1Center for Forensic Science Advancement and Application, RTI International, 3040 East Cornwallis Rd., Research Triangle Park, NC 27709, USA.
Journal of analytical toxicology
|July 5, 2023
概括
11-Nor-9-carboxy-∆8-tetrahydrocannabinol (∆8-THC-COOH) 和11-Nor-9-carboxy-∆9-tetrahydrocannabinol (∆9-THC-COOH) 之间的结构相似性可能会导致药物测试中的干扰. 虽然没有报告虚假阳性,但在确认测试期间发生了不可报告的结果.
科学领域:
- 法医毒理学 法医毒理学
- 分析化学 分析化学
背景情况:
- ∆8-THC-COOH和∆9-THC-COOH之间的结构相似性可以导致免疫试验中的交叉反应性.
- 准确的药物测试对于工作场所的安全和法律遵守至关重要.
研究的目的:
- 调查∆8-THC-COOH在∆9-THC-COOH的免疫试验和确认测试中的潜在干扰.
- 评估∆8-THC-COOH对大麻代谢物工作场所药物测试准确性的影响.
主要方法:
- 来自三家制造商的免疫试验试剂被用于测试不同切断点的不同度的∆8-THC-COOH样品.
- 在HHS认证的实验室中,使用常见的确认方法分析了含有∆8-THC-COOH和∆9-THC-COOH的强化样本.
主要成果:
- ∆8-THC-COOH的交叉活性在三种免疫测试平台的切断值为50 ng/mL,范围为87%至112%.
- 在存在∆8-THC-COOH时对∆9-THC-COOH进行确认测试,由于染色学干扰或质量比失败,导致无法报告的发现.
- 没有任何HHS认证的实验室报告任何虚假阳性∆9-THC-COOH结果.
结论:
- ∆8-THC-COOH可以干扰免疫检测查和∆9-THC-COOH的确认测试.
- 虽然∆8-THC-COOH没有导致错误阳性,但它可能导致确认分析中无法报告的结果,这可能会影响药物测试的解释.
- 在法医毒理学中,可能需要进一步开发方法来区分∆8-THC-COOH和∆9-THC-COOH.
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