Institut de Chimie Moléculaire de Reims (ICMR, UMR CNRS 6229), Groupe Chimie de Coordination, Université de Reims Champagne-Ardenne, BP 1039, 51687 Reims Cedex 2, France.
J Colloid Interface Sci. 2011 May 15;357(2):453-9. doi: 10.1016/j.jcis.2011.01.097. Epub 2011 Feb 3.
The coadsorption of flumequine (fluoroquinolone antibiotic) and copper(II) on a alkaline soil sample (collected from the Champagne-Ardenne region, France) was studied at macroscopic and molecular scales by means of batch experiments and X-ray absorption spectroscopy. The retained antibiotic amount onto the soil surface increases (from 2- to >20-fold) with the copper concentration due to the formation of a Cu(II)-flumequine ternary surface complex, which leads to the accumulation of flumequine into soils. Flumequine can be classified at environmentally relevant pH values as a slow-mobile compound in soils and a very slow-mobile compound in the presence of copper, even at relatively low concentrations.
采用批量实验和 X 射线吸收光谱法，从宏观和分子尺度研究了氟喹诺酮类抗生素（氟甲喹）和铜（II）在碱性土壤样品（采自法国香槟-阿登地区）上的共吸附。由于形成了 Cu（II）-氟甲喹三元表面配合物，土壤表面保留的抗生素量增加（从 2 倍增加到>20 倍），这导致氟甲喹在土壤中的积累。在环境相关 pH 值下，氟甲喹可被归类为土壤中缓慢移动的化合物，在铜存在时，即使浓度相对较低，也为极缓慢移动的化合物。
