利用全反射X射线荧光光谱法研究土壤中活动态元素提取动力学

王冀艳, 储彬彬, 姚文生, 詹秀春, 刘勉

A study of the kinetic model of leaching mobile forms of elements in soils by the total reflection X-ray fluorescence spectrometry

Ji-Yan WANG, Bin-Bin CHU, Wen-Sheng YAO, Xiu-Chun ZHAN, Mian LIU

表1 元素活动态提取过程动力学模拟参数

Table 1 Kinetics parameters of leaching courses of elements

提取元素 实验样品 w0/ 10-6 w1/ 10-6 k1/h-1 w2 / 10-6 k2/h-1 R2 ASA-2a 3.461 2.284 4.891 1.177 0.1395 0.986 Cu ASA-3a 4.378 3.211 23.49 1.168 0.2344 0.984 ASA-6a 20.24 15.83 5.666 4.408 0.0973 0.996 ASA-2a 7.973 3.497 2.997 4.469 0.0499 0.972 Pb ASA-3a 8.23 3.564 22.57 4.666 0.1062 0.989 ASA-6a 28.03 17.51 4.197 10.51 0.1021 0.995 ASA-2a 3.334 2.361 3.869 0.979 0.127 0.992 Zn ASA-3a 7.046 3.892 4.570 3.153 0.0941 0.992 ASA-6a 6.845 3.687 2.592 3.145 0.0480 0.993 ASA-2a 1.368 0.4976 1.319 0.8565 0.0350 0.977 Ni ASA-3a 2.188 0.5907 4.635 1.597 0.0511 0.985 ASA-6a 1.762 0.7944 2.477 0.9611 0.0180 0.975 ASA-2a 147.3 25.02 1.957 121.8 0.0660 0.993 Mn ASA-3a 300.5 63.98 42.44 236.5 0.0661 0.983 ASA-6a 269.3 78.03 54.78 191.3 0.1763 0.987