title: [Adsorption of cyromazine on five typical soils in China].
abstract: Batch equilibrium experiments were used to reveal cyromazine adsorption on five kinds of soils, namely Ali-Perudic Ferrosols collected from Yingtan of Jiangxi, Udic Argosols collected from Nanjing and Gleyic-Stagnic Anthrosols collected from Changshu of Jiangsu, Ustic Cambosols collected from Fengqiu of Henan, and Udic Isohumosols collected from Hailun of Heilongjiang. Results show that the experimental data are best described by the Freundlich and Langmuir model, while fitted successfully by the linear model. Different adsorption behaviors of Cyromazine are observed in the five tested soils, with the lgK(f) values varying from 1.6505 (cambosols), 1.6715 (argosols) and 1.7153 (ferrosols) to 2.4579 (anthrosols) and 2.6557 (isohumosols). Moreover, the Kf values are in a positive correlation to the OM of the soil (r = 0.989) but significantly negative correlated to soil pH (r = -0.938). The free energy of sorption ranged from -20.8 to -23.0 kJ/mol, indicated that the adsorption could be largely attributed to the physical adsorption.
authors.affiliation: State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China.
authors.forename: Ling-li
authors.initials: LL
authors.lastname: Tang
authors.forename: Hui
authors.initials: H
authors.lastname: Wang
authors.forename: Yuan-hua
authors.initials: YH
authors.lastname: Dong
authors.forename: De-hui
authors.initials: DH
authors.lastname: Liu
authors.forename: Ling
authors.initials: L
authors.lastname: Zhao
authors.forename: Jing-qiang
authors.initials: JQ
authors.lastname: Zhang
authors.forename: Xing-cheng
authors.initials: XC
authors.lastname: Liu
authors.forename: Qiong
authors.initials: Q
authors.lastname: An
mesh_terms: D000327:Adsorption; D002681:China; D012987:Soil / Q000032:analysis*; D012989:Soil Pollutants / Q000737:chemistry / Q000302:isolation & purification; D014227:Triazines / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D012987:Soil; D012989:Soil Pollutants; D014227:Triazines; C028704:cyromazine