Application of liquid chromatography in the analysis of polycyclic aromatic hydrocarbons in diesel
This article aims to apply high-performance liquid chromatography(HPLC)technology for the qualitative and quantitative analysis of polycyclic aromatic hydrocarbons(PAHs)in diesel fuel.PAHs are a class of organic compounds with high toxicity and car-cinogenicity,posing serious threats to the environment and human health.In the experiment,PAHs in diesel samples were extracted using liquid-liquid extraction and analyzed chro-matographically using a cyanopropyl-bonded silica gel stationary phase.The results show that the adopted HPLC method can effectively separate and detect various PAHs in diesel,exhibiting high resolution and sensitivity.The primary PAHs detected include bicyclic aro-matic hydrocarbons(DAHs)and tricyclic aromatic hydrocarbons(T+AHs).The experimen-tal results indicate that the concentration distribution of different PAHs in diesel reflects their combustion characteristics and pollution sources.The effectiveness and reliability of this method were validated in the experiment,although there is still room for improvement in sample pretreatment and chromatographic conditions.This study provides an effective tech-nical means for the analysis of PAHs in diesel,which is of great significance for environ-mental monitoring and pollution control.
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