Abstract:Recoveries of oxytetracycline extracted were discussed with different extractants and extraction processes in the brown, cinnamon, and red soil. Stable and efficient extracted recovery could be achieved by using Na2EDTA-McIlvaine as a extractant in the shake flask extraction. In addition, a sequential extraction procedure was developed to study the chemical speciation of oxytetracycline in the soils. The soils were extracted by H2O, 0.1mol/L CaCl2, and Na2EDTA-McIlvaine in order. As a result, water-soluble, exchangeable, and adsorbed fractions were obtained. Moreover, it could conclude that the orders of amount of those fractions are as follows: adsorbed> exchangeable > water-soluble fractions in the three tested soils.
余强, 鲍艳宇, 李艳梅, 周启星, 刘雨霞. 三种土壤中土霉素浸提方法的比较研究[J]. 中国环境科学, 2011, 31(6): 951-957.
YU Qiang, BAO Yan-Yu, LI Yan-Mei, ZHOU Qi-Xing, LIU Yu-Xia. Compare of different oxytetracycline extraction methods in the three soils. CHINA ENVIRONMENTAL SCIENCECE, 2011, 31(6): 951-957.