Volatile organic compounds (VOCs) are pervasive in the environment. Since the early 1980s, substantial work has examined the detection of these materials, as they can indicate environmental changes that can affect human health. VOCs and similar compounds present a very specific sensing problem in that they are not reactive and often nonpolar, so it is difficult to find materials that selectively bind or adsorb them. A number of techniques are applied to vapor sensing. High resolution molecular separation approaches such as gas chromatography and mass spectrometry are well-characterized and offer high sensitivity, but are difficult to implement in portable, real-time monitors, whereas approaches such as chemiresistors are promising, but still in development. Gravimetric approaches, in which the mass of an adsorbed vapor is directly measured, have several potential advantages over other techniques but have so far lagged behind other approaches in performance and market penetration. This review aims to offer a comprehensive background on gravimetric sensing including underlying resonators and sensitizers, as well as a picture of applications and commercialization in the field.

中文翻译：

---

挥发性有机化合物的重力传感综述。

挥发性有机化合物（VOC）在环境中无处不在。自1980年代初以来，大量工作检查了这些物质的检测，因为它们可以指示可能影响人类健康的环境变化。VOC和类似化合物存在一个非常特殊的传感问题，因为它们不具有反应性且通常是非极性的，因此很难找到能选择性结合或吸附它们的材料。许多技术被应用于蒸气感测。诸如气相色谱法和质谱法的高分辨率分子分离方法已被很好地表征并且提供了高灵敏度，但是难以在便携式实时监测器中实施，而诸如化学电阻器的方法则很有前途，但仍在开发中。重量法，直接测量吸附蒸气的质量，与其他技术相比，它具有一些潜在的优势，但到目前为止，在性能和市场渗透方面都落后于其他方法。这篇综述旨在提供有关重力感应的综合背景，包括潜在的谐振器和敏化剂，以及该领域的应用和商业化情况。