Hsieh Ping-Chieh, Lee Chon-Lin, Jen Jen-Fon, Chang Kuei-Chen
Department of Marine Environment and Engineering, National Sun Yat-sen University, Kaohsiung, Taiwan.
Analyst. 2015 Feb 21;140(4):1275-80. doi: 10.1039/c4an01923g.
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.
通过络合絮凝结合微波辅助顶空固相微萃取（CF-MA-HS-SPME）测定了选定的多环芳烃（PAHs）——菲、蒽、荧蒽和芘——与溶解态腐殖质（DHS）的结合常数KDOC。所得结果与文献报道的KDOC数据具有可比性。在络合絮凝过程中未观察到PAH与DHS结合平衡的破坏。本研究首次采用CF-MA-HS-SPME测定KDOC，为测定PAHs的KDOC提供了一种替代方法。CF-MA-HS-SPME相对于其他方法具有一些优势，如不受荧光化合物限制、测定速度更快以及能够同时测量多种化合物。
