In the past as well as today mostly 2D analytical data are recorded
to visualize the behaviour of two independent parameters, although in
times of modern computer technology, multi-dimensional data acquisition
is also possible and will be applied in many cases.
A typical example for a 2D data object is a UV/VIS
spectrum, where the absorption of a suitable material is measured within
the wavelength range of interest. The resulting spectrum is a 2D data
object with the absorption on the y-axis and the respective wavelength
on the x-axis. The UV/VIS spectrum of benzene in the range from 230 to
270 nm looks as follows: