Santos Inês C, Schug Kevin A
Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, TX, USA.
J Sep Sci. 2017 Jan;40(1):138-151. doi: 10.1002/jssc.201601023. Epub 2016 Nov 30.
The vacuum ultraviolet spectrophotometer was developed recently as an alternative to existing gas chromatography detectors. This detector measures the absorption of gas-phase chemical species in the range of 120-240 nm, where all chemical compounds present unique absorption spectra. Therefore, qualitative analysis can be performed and quantification follows standard Beer-Lambert law principles. Different fields of application, such as petrochemical, food, and environmental analysis have been explored. Commonly demonstrated is the capability for facile deconvolution of co-eluting analytes. The concept of additive absorption for co-eluting analytes has also been advanced for classification and speciation of complex mixtures using a data treatment procedure termed time interval deconvolution. Furthermore, pseudo-absolute quantitation can be performed for system diagnosis, as well as potentially calibrationless quantitation. In this manuscript an overview of these features, the vacuum ultraviolet spectrophotometer instrumentation, and performance capabilities are given. A discussion of the applications of the vacuum ultraviolet detector is provided by describing and discussing the papers published thus far since 2014.
真空紫外分光光度计是最近开发的一种现有气相色谱检测器的替代产品。该检测器可测量120 - 240纳米范围内气相化学物质的吸收情况，在此范围内所有化合物都有独特的吸收光谱。因此，可以进行定性分析，定量分析则遵循标准的比尔-朗伯定律原理。人们已经探索了其在石化、食品和环境分析等不同应用领域的应用。共洗脱分析物的轻松解卷积能力已得到普遍证明。对于使用称为时间间隔解卷积的数据处理程序对复杂混合物进行分类和形态分析，共洗脱分析物的加和吸收概念也已得到发展。此外，可进行伪绝对定量用于系统诊断以及潜在的无校准定量。在本手稿中，对这些特性、真空紫外分光光度计仪器及其性能进行了概述。通过描述和讨论自2014年以来发表的论文，对真空紫外检测器的应用进行了讨论。
