School of Biosciences, Cardiff University, Cardiff, Wales, UK.
Anal Bioanal Chem. 2011 Dec;401(10):3095-102. doi: 10.1007/s00216-011-5209-7. Epub 2011 Jul 17.
Airborne particles generated from the burning of incense have been characterized in order to gain an insight into the possible implications for human respiratory health. Physical characterization performed using field-emission scanning electron microscopy showed incense particulate smoke mainly consisted of soot particles with fine and ultrafine fractions in various aggregated forms. A range of organic compounds present in incense smoke have been identified using derivatisation reactions coupled with gas chromatography-mass spectrometry analysis. A total of 19 polar organic compounds were positively identified in the samples, including the biomass burning markers levoglucosan, mannosan and galactosan, as well as a number of aromatic acids and phenols. Formaldehyde was among 12 carbonyl compounds detected and predominantly associated with the gas phase, whereas six different quinones were also identified in the incense particulate smoke. The nano-structured incense soot particles intermixed with organics (e.g. formaldehyde and quinones) could increase the oxidative capacity. When considering the worldwide prevalence of incense burning and resulting high respiratory exposures, the oxygenated organics identified in this study have significant human health implications, especially for susceptible populations.
为了深入了解香燃烧产生的空气颗粒物对人类呼吸道健康的可能影响，对其进行了特征描述。使用场发射扫描电子显微镜进行的物理特性描述表明，香的颗粒状烟雾主要由烟尘颗粒组成，这些颗粒以各种聚集形式存在着细微和超细微的颗粒。通过衍生化反应与气相色谱-质谱分析相结合，鉴定出香烟雾中存在的一系列有机化合物。在样品中总共鉴定出 19 种极性有机化合物，其中包括生物质燃烧标志物左旋葡聚糖、甘露聚糖和半乳糖聚糖，以及一些芳香酸和酚类。在所检测到的 12 种羰基化合物中，甲醛是主要存在于气相中的一种，而在香的颗粒状烟雾中也鉴定出了 6 种不同的醌。纳米结构的香炭黑颗粒与有机物（如甲醛和醌）混合，可能会增加其氧化能力。考虑到香燃烧的全球普遍性以及由此导致的高呼吸道暴露，本研究中鉴定出的含氧有机物对人类健康具有重要意义，特别是对易感人群。
