A standard curve is a type of graph used as a quantitative research technique. Multiple samples with known properties are measured and graphed, which then allows the same properties to be determined for unknown samples by interpolation on the graph. The samples with known properties are the standards, and the graph is the standard curve.
Standard curves are most commonly used to determine the concentration of a substance such as protein or DNA. For example, a standard curve for protein concentration is often created using known concentrations of bovine serum albumin. The property measured may be absorbance, optical density, luminescence, fluorescence, radioactivity, or other parameters.
Read more about Standard Curve: Example
Famous quotes containing the words standard and/or curve:
“[The Declaration of Independence] meant to set up a standard maxim for free society, which should be familiar to all, and revered by all; constantly looked to, constantly labored for, and even though never perfectly attained, constantly approximated, and thereby constantly spreading and deepening its influence, and augmenting the happiness and value of life to all people of all colors everywhere.”
—Abraham Lincoln (1809–1865)
“And out again I curve and flow
To join the brimming river,
For men may come and men may go,
But I go on forever.”
—Alfred Tennyson (1809–1892)