Analysis of Chemical Composition of Long-Chain Linear Alkylbenzenes Using High-Performance Liquid Chromatography Coupled with Microwave Plasma Torch Mass Spectrometry

IF 2.8 3区 工程技术 Q2 CHEMISTRY, ANALYTICAL Journal of separation science Pub Date : 2025-03-16 DOI:10.1002/jssc.70123
Yuwen He, Jing Luo, Pengcheng Hu, Xingmei Song, Min Zhao, Guozhou Wang, Fengjian Chu, Hongru Feng, Yuanjiang Pan
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Abstract

Long-chain linear alkylbenzenes (LABs) are essential precursors to produce alkylbenzene sulfonates, which have high surfactant properties and are readily biodegradable, widely used in various detergents. However, an effective and rapid method for the direct analysis and quality control of LAB chemical composition still needs to be improved. This study uses high-performance liquid chromatography coupled with microwave plasma torch mass spectrometry (HPLC-MPT-MS) to analyze the composition of long-chain LABs and quantify nine of these components. The results show that the main components in long-chain LAB samples are eicosylbenzene, docosylbenzene, and tetracosylbenzene, primarily including four structures, three of which have been structurally identified. This study successfully separates and analyzes LAB directly via HPLC-MPT-MS, providing a valuable and reliable method for the quality evaluation of LAB.

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长链线性烷基苯(LABs)是生产烷基苯磺酸盐的重要前体,它具有很高的表面活性剂特性,并且易于生物降解,被广泛应用于各种洗涤剂中。然而,直接分析和质量控制 LAB 化学成分的有效而快速的方法仍有待改进。本研究采用高效液相色谱-微波等离子体炬质谱法(HPLC-MPT-MS)分析了长链 LABs 的成分,并对其中的 9 种成分进行了定量。结果表明,长链 LAB 样品中的主要成分是二十烷基苯、二十二烷基苯和二十四烷基苯,主要包括四种结构,其中三种结构已被确定。该研究成功地通过 HPLC-MPT-MS 直接分离和分析了 LAB,为 LAB 的质量评价提供了一种有价值的可靠方法。
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来源期刊
Journal of separation science
Journal of separation science 化学-分析化学
CiteScore
6.30
自引率
16.10%
发文量
408
审稿时长
1.8 months
期刊介绍: The Journal of Separation Science (JSS) is the most comprehensive source in separation science, since it covers all areas of chromatographic and electrophoretic separation methods in theory and practice, both in the analytical and in the preparative mode, solid phase extraction, sample preparation, and related techniques. Manuscripts on methodological or instrumental developments, including detection aspects, in particular mass spectrometry, as well as on innovative applications will also be published. Manuscripts on hyphenation, automation, and miniaturization are particularly welcome. Pre- and post-separation facets of a total analysis may be covered as well as the underlying logic of the development or application of a method.
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