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<title>Single First-Order Reversible Binding kinetics — SFORB.solution • mkin</title>

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    <h1>Single First-Order Reversible Binding kinetics</h1>
    </div>

    
    <p>Function describing the solution of the differential equations describing
  the kinetic model with first-order terms for a two-way transfer from a free
  to a bound fraction, and a first-order degradation term for the free
  fraction.  The initial condition is a defined amount in the free fraction and
  no substance in the bound fraction.</p>
    

    <pre><span class='fu'>SFORB.solution</span>(<span class='no'>t</span>, <span class='no'>parent.0</span>, <span class='no'>k_12</span>, <span class='no'>k_21</span>, <span class='no'>k_1output</span>)</pre>
    
    <h2 class="hasAnchor" id="arguments"><a class="anchor" href="#arguments"></a> Arguments</h2>
    <dl class="dl-horizontal">
      <dt>t</dt>
      <dd> Time. </dd>
      <dt>parent.0</dt>
      <dd> Starting value for the response variable at time zero. </dd>
      <dt>k_12</dt>
      <dd> Kinetic constant describing transfer from free to bound. </dd>
      <dt>k_21</dt>
      <dd> Kinetic constant describing transfer from bound to free. </dd>
      <dt>k_1output</dt>
      <dd> Kinetic constant describing degradation of the free fraction. </dd>
    </dl>
    
    <h2 class="hasAnchor" id="value"><a class="anchor" href="#value"></a>Value</h2>

    <p>The value of the response variable, which is the sum of free and bound 
  fractions at time <code>t</code>.</p>
    
    <h2 class="hasAnchor" id="references"><a class="anchor" href="#references"></a>References</h2>

    <p>FOCUS (2006) &#8220;Guidance Document on Estimating Persistence and
  Degradation Kinetics from Environmental Fate Studies on Pesticides in EU
  Registration&#8221; Report of the FOCUS Work Group on Degradation Kinetics,
  EC Document Reference Sanco/10058/2005 version 2.0, 434 pp,
  <a href = 'http://focus.jrc.ec.europa.eu/dk'>http://focus.jrc.ec.europa.eu/dk</a></p>
    

    <h2 class="hasAnchor" id="examples"><a class="anchor" href="#examples"></a>Examples</h2>
    <pre class="examples"><div class='input'>  <span class='fu'>plot</span>(<span class='kw'>function</span>(<span class='no'>x</span>) <span class='fu'>SFORB.solution</span>(<span class='no'>x</span>, <span class='fl'>100</span>, <span class='fl'>0.5</span>, <span class='fl'>2</span>, <span class='fl'>3</span>), <span class='fl'>0</span>, <span class='fl'>2</span>)</div><img src='SFORB.solution-2.png' alt='' width='540' height='400' /></pre>
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    <h2>Contents</h2>
    <ul class="nav nav-pills nav-stacked">
      <li><a href="#arguments">Arguments</a></li>
      
      <li><a href="#value">Value</a></li>

      <li><a href="#references">References</a></li>
      
      <li><a href="#examples">Examples</a></li>
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