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一种用于通过双通道检测的全二维气相色谱法获取的挥发性有机化合物数据的非靶向数据处理工作流程。

A non-targeted data processing workflow for volatile organic compound data acquired using comprehensive two-dimensional gas chromatography with dual channel detection.

作者信息

Byrne Julianne M, Dubois Lena M, Baker Jonathan D, Focant Jean-François, Perrault Katelynn A

机构信息

Laboratory of Forensic and Bioanalytical Chemistry, Forensic Sciences Unit, Chaminade University of Honolulu, Honolulu, HI, USA.

Organic and Biological Analytical Chemistry Laboratory, MolSys, University of Liège, Liège, Belgium.

出版信息

MethodsX. 2020 Jul 24;7:101009. doi: 10.1016/j.mex.2020.101009. eCollection 2020.

Abstract

There has been an influx of technology for comprehensive two-dimensional gas chromatography analyses in recent years, calling for development of guided workflows and rigorous reporting of processes. This research focuses on the processing method for data collected on a dual channel detection system using flame ionization detection (FID) and quadrupole mass spectrometry (qMS) for the analysis of volatile organic compounds (VOCs). The samples analyzed were kava (), which has a rich VOC profile that benefits substantially from a multidimensional approach due to enhanced peak capacity. The procedure which was customized here was the data processing workflow from a manual single-sample analysis to an integrated batch workflow that can be applied across studies.•Parameter choice for baseline correction and peak detection were defined when handling batch data.•Elution regions were defined using qMS data to automate compound identification.•Stencils were transformed onto FID data and sequenced for quantitative information.This dataset can be used as a training tool, as all details, methods and results for the workflow have been provided for users to compare with. The focus on data workflow reproducibility in the field of multidimensional chromatography will assist in adoption by users in new application areas.

摘要

近年来,用于全二维气相色谱分析的技术大量涌现,这就需要开发有指导的工作流程并严格报告分析过程。本研究聚焦于在双通道检测系统上收集的数据的处理方法,该系统使用火焰离子化检测(FID)和四极杆质谱(qMS)来分析挥发性有机化合物(VOCs)。所分析的样品是卡瓦,它具有丰富的VOC谱图,由于峰容量增加,多维方法能使其受益匪浅。这里定制的程序是从手动单样品分析到可应用于多项研究的集成批处理工作流程的数据处理工作流程。

•处理批数据时定义了基线校正和峰检测的参数选择。

•使用qMS数据定义洗脱区域以实现化合物鉴定自动化。

•模板被转换到FID数据上并排序以获取定量信息。

该数据集可作为培训工具,因为已为用户提供了工作流程的所有细节、方法和结果以供比较。对多维色谱领域数据工作流程可重复性的关注将有助于新应用领域的用户采用。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b69f/7397399/c3e9d683a518/fx1.jpg

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