使用适合大麻相关烯的快速和廉价方法对林纳醇进行蒸汽压力测量†
Cheryle N Beuning1, Tara M Lovestead1, Marcia L Huber1
1Applied Chemicals and Materials Division, National Institute of Standards and Technology, MS 647.07, 325 Broadway, Boulder, CO 80305.
Journal of chemical and engineering data
|February 5, 2024
概括
动态蒸汽微提取 (DVME) 准确测量了林纳醇蒸汽压力,这对于其作为大麻呼吸标记物的潜在用途至关重要. 这种方法对分析生物样本中的挥发性有机化合物具有前途.
科学领域:
- 物理化学 物理化学
- 分析化学 分析化学
- 生物医学科学 生物医学科学
背景情况:
- 准确的蒸汽压力数据对于识别挥发性有机化合物作为潜在生物标志物至关重要.
- 烯,像林纳醇一样,是大麻使用的呼吸标志物的候选者,需要精确的物理性质测量.
- 现有的蒸汽压力测定方法的准确性或适用于特定化合物的适用性可能受到限制.
研究的目的:
- 用一种新的气体和方法测量林纳醇的蒸气压力 (sat).
- 为了评估动态蒸汽微提取 (DVME) 用于确定烯的蒸汽压力的有效性.
- 通过确定其蒸汽压力特征来评估林纳醇作为呼吸标记物的潜力.
主要方法:
- 采用动态蒸汽微提取 (DVME),一种利用廉价,商用组件的气体和技术.
- 在 314 K 到 354 K 的温度范围内进行测量,测量时间为 30 分钟.
- 利用载气来最大限度地减少不理想的混合物行为,并确保准确的读数.
主要成果:
- 在测试温度范围内,DVME对林纳醇蒸气压的测量范围从81Pa到1250Pa不等.
- 测量结果的综合标准不确定性从0.0358~0.0584不确定.
- 对于蒸汽压力,DVME的准确性明显高于之前验证的,这证实了其广泛的适用性.
结论:
- 动态蒸汽微提取是一种可靠且准确的方法,用于测量像林纳醇这样的烯的蒸汽压力.
- 获得的蒸汽压力数据支持对林纳醇作为大麻使用潜在的呼吸生物标志物的研究.
- 该方法的适应性和准确性使其适用于分析广泛的挥发性有机化合物.
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