</span><span class="n">params</span><span class="p">%</span><span class="n">profile_model</span><span class="p">.</span><span class="n">eq</span><span class="p">.</span><span class="s1">&#39;M3D_C1&#39;</span><span class="p">)</span> <span class="k">then</span>
<span class="k">       do </span><span class="n">i</span><span class="o">=</span><span class="mi">1</span><span class="p">,</span><span class="n">cparams_ms</span><span class="p">%</span><span class="n">num_impurity_species</span>
          <span cla