Department of Earth System Science, School of Physical Sciences, University of California, Irvine, Irvine, CA 92697, USA.
Environ Sci Process Impacts. 2013 Jul;15(7):1301-14. doi: 10.1039/c3em00040k.
The physiological production mechanisms of some of the organics in plants, commonly known as biogenic volatile organic compounds (BVOCs), have been known for more than a century. Some BVOCs are emitted to the atmosphere and play a significant role in tropospheric photochemistry especially in ozone and secondary organic aerosol (SOA) productions as a result of interplays between BVOCs and atmospheric radicals such as hydroxyl radical (OH), ozone (O3) and NOX (NO + NO2). These findings have been drawn from comprehensive analysis of numerous field and laboratory studies that have characterized the ambient distribution of BVOCs and their oxidation products, and reaction kinetics between BVOCs and atmospheric oxidants. These investigations are limited by the capacity for identifying and quantifying these compounds. This review highlights the major analytical techniques that have been used to observe BVOCs and their oxidation products such as gas chromatography, mass spectrometry with hard and soft ionization methods, and optical techniques from laser induced fluorescence (LIF) to remote sensing. In addition, we discuss how new analytical techniques can advance our understanding of BVOC photochemical processes. The principles, advantages, and drawbacks of the analytical techniques are discussed along with specific examples of how the techniques were applied in field and laboratory measurements. Since a number of thorough review papers for each specific analytical technique are available, readers are referred to these publications rather than providing thorough descriptions of each technique. Therefore, the aim of this review is for readers to grasp the advantages and disadvantages of various sensing techniques for BVOCs and their oxidation products and to provide guidance for choosing the optimal technique for a specific research task.
植物中一些有机物质的生理产生机制，通常被称为生物挥发性有机化合物（BVOCs），已经为人所知一个多世纪了。一些 BVOCs 被排放到大气中，并在大气光化学反应中发挥重要作用，特别是在臭氧和二次有机气溶胶（SOA）的产生中，因为 BVOCs 和大气自由基（如羟基自由基（OH）、臭氧（O3）和氮氧化物（NO + NO2））之间的相互作用。这些发现是从对大量现场和实验室研究的综合分析中得出的，这些研究描述了 BVOCs 及其氧化产物的环境分布，以及 BVOCs 与大气氧化剂之间的反应动力学。这些研究受到识别和量化这些化合物的能力的限制。
本综述重点介绍了用于观察 BVOCs 及其氧化产物的主要分析技术，如气相色谱法、硬和软电离质谱法以及从激光诱导荧光（LIF）到遥感的光学技术。此外，我们还讨论了新的分析技术如何促进我们对 BVOC 光化学反应过程的理解。讨论了分析技术的原理、优点和缺点，并结合具体实例讨论了这些技术在现场和实验室测量中的应用。由于每种特定分析技术都有许多全面的综述文章，因此建议读者参考这些出版物，而不是对每种技术进行详细描述。因此，本综述的目的是让读者了解用于 BVOCs 和其氧化产物的各种传感技术的优缺点，并为选择特定研究任务的最佳技术提供指导。
