% Generated by roxygen2: do not edit by hand
% Please edit documentation in R/SFORB.solution.R
\name{SFORB.solution}
\alias{SFORB.solution}
\title{Single First-Order Reversible Binding kinetics}
\usage{
SFORB.solution(t, parent.0, k_12, k_21, k_1output)
}
\arguments{
\item{t}{Time.}

\item{parent.0}{Starting value for the response variable at time zero.}

\item{k_12}{Kinetic constant describing transfer from free to bound.}

\item{k_21}{Kinetic constant describing transfer from bound to free.}

\item{k_1output}{Kinetic constant describing degradation of the free
fraction.}
}
\value{
The value of the response variable, which is the sum of free and
  bound fractions at time \code{t}.
}
\description{
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.
}
\examples{

  \dontrun{plot(function(x) SFORB.solution(x, 100, 0.5, 2, 3), 0, 2)}

}
\references{
FOCUS (2006) \dQuote{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,
  \url{http://esdac.jrc.ec.europa.eu/projects/degradation-kinetics}
}