By performing radiocarbon dating on timber samples in a known chronology, radiocarbon dates can be plotted against real time generating a calibration curve that can be used for future radiocarbon samples.
32.
An examination of the calibration curve, which has a time resolution of five years, showed three intervals in the last 3, 000 years in which 14 C increased significantly.
33.
The calibration curve is a plot of how the instrumental response, the so-called analytical signal, changes with the concentration of the analyte ( the substance to be measured ).
34.
This type of calibration curve ( or standard curve ) relates the concentration of the solution ( on the x-axis ) to measures of its absorbance ( y-axis ).
35.
For a set of samples with a known sequence and separation in time such as a sequence of tree rings, the samples'radiocarbon ages form a small subset of the calibration curve.
36.
I also think it's better to make " calibration curves " plural; I'll expand on that below . library ) 11 : 03, 13 July 2014 ( UTC)
37.
The resulting data, in the form of a calibration curve, is now used to convert a given measurement of radiocarbon in a sample into an estimate of the sample's calendar age.
38.
For accurate results, the instrument's response to the analyte in the unknown should be compared with the response to a standard; this is very similar to the use of calibration curves.
39.
In more general use, a calibration curve is a table for a measuring instrument which measures some parameter indirectly, giving values for the desired quantity as a function of values of sensor output.
40.
First, the calibration curve provides a reliable way to calculate the uncertainty of the concentration calculated from the calibration curve ( using the statistics of the least squares line fit to the data ).
