Related Experiment Video
Updated: Apr 18, 2026
Quantification of Humic and Fulvic Acids in Humate Ores, DOC, Humified Materials and Humic Substance-Containing Commercial Products
Published on: March 18, 2022
Complexation-flocculation combined with microwave-assisted headspace solid-phase microextraction in determining the
Ping-Chieh Hsieh1, Chon-Lin Lee, Jen-Fon Jen
1Department of Marine Environment and Engineering, National Sun Yat-sen University, Kaohsiung, Taiwan. linnohc@mail.nsysu.edu.tw.
Abstract:
The binding constants, KDOC, of selected polycyclic aromatic hydrocarbons (PAHs)-phenanthrene, anthracene, fluoranthene, and pyrene-to dissolved humic substances (DHS) were determined by complexation-flocculation combined with microwave-assisted headspace solid-phase microextraction (CF-MA-HS-SPME). The results obtained are comparable with KDOC data reported in the literature. No disruption of the PAH to DHS binding equilibrium was observed during the complexation-flocculation process. The present study, which is the first to determine KDOC by CF-MA-HS-SPME, provides an alternative approach to determine the KDOC of PAHs. CF-MA-HS-SPME provides some advantages over other methods, such as no limitation of fluorescent compounds, greater determination speed, and the capability of measuring various compounds simultaneously.
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