论文标题
使用多通气电池设置，通过FTIR光谱在空气中进行高灵敏度实时VOC监测
High Sensitivity real-time VOCs monitoring in air through FTIR Spectroscopy using a Multipass Gas Cell Setup
论文作者
论文摘要
人类接触挥发性有机化合物（VOC）及其在室内和工作环境中的存在被认为是严重的健康风险，从而导致严重程度的损害。市场上有能够监控VOC的不同检测系统，但是它们对敏感性和化学歧视能力都有重大限制。在过去的几年中，我们系统地研究了使用傅立叶变换红外光谱（FTIR）光谱法作为量化空气中VOC的替代性，强大的工具。我们通过使用实验室和便携式红外光谱仪来校准一组化合物（苯乙烯，丙酮，乙醇和异丙醇）的方法。目的是开发一个新的，实时的，高度敏感的传感器系统，以进行VOC监视。在本文中，我们改进了使用多通单元的可行性的设置性能，目的是将该传感器系统的灵敏度扩展到每英里（PPB）水平的零件。考虑到现在也适用于便携式仪器，这项研究为设计新的高分辨率设备的环境监测设备开辟了道路。
Human exposure to Volatile Organic Compounds (VOCs) and their presence in indoor and working environments is recognized as a serious health risk, causing impairment of varying severity. Different detecting systems able to monitor VOCs are available in the market, however they have significant limitations for both sensitivity and chemical discrimination capability. During the last years we studied systematically the use of Fourier Transform Infrared Spectroscopy (FTIR) spectroscopy as an alternative, powerful tool for quantifying VOCs in air. We calibrated the method for a set of compounds (styrene, acetone, ethanol and isopropanol) by using both laboratory and portable infrared spectrometers. The aim was to develop a new, real time and highly sensitive sensor system for VOCs monitoring. In this paper, we improve the setup performance testing the feasibility of using a multipass cell with the aim of extending the sensitivity of this sensor system down to the part per milion (ppb) level. Considering that multipass cells are now available also for portable instruments, this study opens the road for the design of new high-resolution devices for environmental monitoring.
