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<title>Double First-Order in Parallel kinetics — DFOP.solution • mkin</title>
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<h1>Double First-Order in Parallel kinetics</h1>
</div>
<p>Function describing decline from a defined starting value using the sum
of two exponential decline functions.</p>
<pre><span class='fu'>DFOP.solution</span>(<span class='no'>t</span>, <span class='no'>parent.0</span>, <span class='no'>k1</span>, <span class='no'>k2</span>, <span class='no'>g</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>k1</dt>
<dd> First kinetic constant. </dd>
<dt>k2</dt>
<dd> Second kinetic constant. </dd>
<dt>g</dt>
<dd> Fraction of the starting value declining according to the
first kinetic constant.
</dd>
</dl>
<h2 class="hasAnchor" id="value"><a class="anchor" href="#value"></a>Value</h2>
<p>The value of the response variable at time <code>t</code>.</p>
<h2 class="hasAnchor" id="references"><a class="anchor" href="#references"></a>References</h2>
<p>FOCUS (2006) “Guidance Document on Estimating Persistence and
Degradation Kinetics from Environmental Fate Studies on Pesticides in EU
Registration” 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'>DFOP.solution</span>(<span class='no'>x</span>, <span class='fl'>100</span>, <span class='fl'>5</span>, <span class='fl'>0.5</span>, <span class='fl'>0.3</span>), <span class='fl'>0</span>, <span class='fl'>4</span>, <span class='kw'>ylim</span><span class='kw'>=</span><span class='fu'>c</span>(<span class='fl'>0</span>,<span class='fl'>100</span>))</div><img src='DFOP.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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