Applied Nuclear Physics Laboratory, Universidade Estadual de Londrina (UEL), 86057-970, Londrina, PR, Brazil.
Instituto de Desenvolvimento Rural do Paraná - IAPAR-EMATER, Área de Agrometeorologia, Fisiologia Vegetal e Tecnologia de Alimentos, 86047-902, Londrina, PR, Brazil.
Appl Radiat Isot. 2023 Oct;200:110964. doi: 10.1016/j.apradiso.2023.110964. Epub 2023 Jul 26.
Electronic cigarettes (e-cig) have gained popularity around the world and its health risks demands more research. This study aims at characterizing e-cig liquids (e-liquids) and its constituents by Total Reflection X-ray Spectrometry (TXRF). The internal standard method was the quantification procedure employed. The spectrometer's performance was evaluated with one certified reference material and spiked samples. It was possible to quantify K, Ca, Ti, Cr, Mn, Fe, Ni, Cu, Zn, Br, and Pb in the e-liquids. Concentrations above the limit for potable water were found in 10 out of 38 samples. Principal component analysis was useful for identifying toxic samples. TXRF is a promising technique for e-liquids evaluation due to its simplicity and performance.
电子烟在全球范围内越来越受欢迎，其健康风险需要更多的研究。本研究旨在通过全反射 X 射线光谱法（TXRF）对电子烟液体（e-liquid）及其成分进行特征描述。内标法是采用的定量程序。使用一种认证参考物质和加标样品对光谱仪的性能进行了评估。在 e-liquid 中可以定量测定 K、Ca、Ti、Cr、Mn、Fe、Ni、Cu、Zn、Br 和 Pb。在 38 个样本中有 10 个样本中的浓度超过了饮用水的限量。主成分分析有助于识别有毒样本。由于其简单性和性能，TXRF 是一种很有前途的 e-liquid 评估技术。
