Automated pretreatment of environmental water samples and non-targeted intelligent screening of organic compounds based on machine experiments

Autor: Yuxin Qiao, Manman Wu, Ninghui Song, Feng Ge, Tingting Yang, Yixuan Wang, Guangxu Chen
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Environment International, Vol 193, Iss , Pp 109072- (2024)
Druh dokumentu: article
ISSN: 0160-4120
DOI: 10.1016/j.envint.2024.109072
Popis: The complexity of environmental pollutants poses significant challenges for monitoring and analysis, especially with the emergence of numerous emerging contaminants. Traditional analysis methods rely mainly on laboratory analysis, which involves labor-intensive and time-consuming sample preparation procedures and non-target data analysis, greatly limiting the rapid detection of water organic pollutants. In this study, we designed a robot experimenter combined with GC × GC-TOFMS. By configuring self-developed automated analysis software, we established a fully automated process from sample collection to data characterization, for the analysis of organic pollutants. We validated the method with 111 organic standards compounds. The robot performed 2577 actions covering the entire workflow, from water sample collection to sample pre-treatment. The integration of mass spectrometry and related software enabled the automatic analysis of emerging hazardous contaminants, from sampling to the output of detection results. The results showed the automated process could qualitatively identify all compounds and demonstrated good linearity, low detection limits, and excellent quantitative ability within the range of 0.04–0.4 mg/L. The average recoveries of 82.89 % of the samples ranged from 70 % to 120 % (relative standard deviation (RSD)
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