Development of Simplified and Efficient Sample Preparation Methods for the Analysis of Problem Material within the Diesel Fuel Delivery System.
Development of Simplified and Efficient Sample Preparation Methods for the Analysis of Problem Material within the Diesel Fuel Delivery System.
复制标题
开发简单高效的样品制备方法，用于分析柴油输送系统内的问题材料。
DOI：
10.1021/acsomega.3c03577
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发表时间：
2023-10-10
期刊：
影响因子：
4.1
通讯作者：
Langley, G. John
中科院分区：
文献类型：
--
作者：
Wilson, Molly;Herniman, Julie M.;Barker, Jim;Langley, G. John
本文提出了一种分析柴油机燃油滤清器的新方法。该方法涉及最少或不涉及样品制备，允许对柴油燃料过滤器进行快速和无偏见的分析。近年来，柴油燃料过滤器堵塞的发生率随着排放法规的变化而增加。燃油滤清器堵塞会导致排放增加、效率降低和发动机故障。燃油滤清器堵塞的原因尚不完全清楚;因此，国际上对燃油滤清器堵塞原因的研究有所增加。本文讨论的方法利用热解吸（TD）式进样技术，可与气相色谱-质谱（GC-MS）结合使用，并提供了一种快速，简单，更可持续的方法来分析燃油滤清器。当需要时，一个有效的和简单的样品清理过程被开发出来，并用于简化和提高数据识别和分配的信心，这种方法是三个数量级的速度比文献中采用的一些程序。使用进一步的补充分析技术，例如超高性能超临界流体色谱-质谱法（UHPSFC-MS）和高分辨率GC-MS，来获取额外的样本特定信息。这种新方法已成功地识别出沉积在堵塞的燃油滤清器上的有问题的材料，与最近的研究同时进行。这些信息有助于制定缓解策略，以防止燃油滤清器堵塞。
A new approach for the analysis of diesel engine fuel filters has been developed. This method involves minimal to no sample preparation, allowing rapid and unbiased analysis of diesel fuel filters. In recent years, diesel fuel filter plugging incidences have increased in parallel with changing emissions legislation. Fuel filter blockages can result in increased emissions, reduced efficiency, and engine failure. It is not fully understood why fuel filter blockages occur; as a result, there has been an international increase in research into the cause of fuel filter plugging. The method discussed in this paper utilizes a thermal desorption (TD) style sample introduction technique that can be used in conjunction with gas chromatography–mass spectrometry (GC-MS) and presents a fast, simple, and more sustainable approach to the analysis of fuel filters. When required, an efficient and straightforward sample cleanup process was developed and was used to simplify and improve confidence in the data identification and assignment; this method is up to three orders of magnitude faster than some procedures adopted in the literature. Further complementary analytical techniques, such as ultrahigh-performance supercritical fluid chromatography–mass spectrometry (UHPSFC-MS) and high-resolution GC-MS, were used to access additional sample-specific information. This new approach has been successful in the identification of problematic materials deposited on blocked fuel filters, concurrent with recent research. This information can aid in the development of mitigation strategies to combat fuel filter plugging.
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