[Prediction of soil adsorption coefficients of organic compounds in a wide range of soil types by soil column liquid chromatography].
Using the methanol-water mixtures as mobile phases of soil column liquid chromatography (SCLC), prediction of soil adsorption coefficients (K(d)) by SCLC was validated in a wide range of soil types. The correlations between the retention factors measured by SCLC and soil adsorption coefficients measured by batch experiments were studied for five soils with different properties, i.e., Eurosoil 1#, 2#, 3#, 4# and 5#. The results show that good correlations existed between the retention factors and soil adsorption coefficients for Eurosoil 1#, 2#, 3# and 4#. For Eurosoil 5# which has a pH value of near 3, the correlation between retention factors and soil adsorption coefficients was unsatisfactory using methanol-water as mobile phase of SCLC. However, a good correlation was obtained using a methanol-buffer mixture with pH 3 as the mobile phase. This study proved that the SCLC is suitable for the prediction of soil adsorption coefficients.
Guo
Rongbo
R
Dalian Institute of Chemical Physics, The Chinese Academy of Sciences, Dalian 116012, China.
Chen
Jiping
J
Zhang
Qing
Q
Wu
Wenzhong
W
Liang
Xinmiao
X
D000327:Adsorption; D002851:Chromatography, High Pressure Liquid / Q000379:methods; D009930:Organic Chemicals / Q000032:analysis*; D012987:Soil / Q000032:analysis*; D012989:Soil Pollutants / Q000032:analysis; D012995:Solubility; D014873:Water Pollutants / Q000032:analysis
D009930:Organic Chemicals; D012987:Soil; D012989:Soil Pollutants; D014873:Water Pollutants