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[求助] MINTEQ软件TLM模型的使用

老师布置的作业,tlm模型参数的设置在Complexation database的参数设置中,直接输入新公式会出现错误提示,Fix the ionic strength I=0.1 M KNO3.
Adsorbent = 1.0 g/L HFO. pH= 4-11, step size=0.5.我自己额外加的Pb2+为1e-6M ,Site density = 0.2 M/M Fe,Surface area= 600 m2/g,Inner capacitance, C1=1.4,Outer capacitance, C2=0.2。参数就是这些,我自己也看了help文件,也没搞清楚怎么用,其中我个人觉得是不是Site density = 0.2 M/M Fe这个参数不能直接输入0.2(在下面打了对号的前提下)具体作业是先用HFO模型获得pb2+的ph-吸附能力的数据,然后用tlm模型拟合曲线,试算出ka3。
SOH + H+ = SOH2+ 5.1
SOH – H+ = SO-  -10.7
SOH + K+ = SO-K + H+ -9.0
SOH + NO3- + H+ = SOH2-NO3 6.9
SOH + Pb2+ = SOPb+ + H+  ka3
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