A technique for investigating
recovery and loss of a microcomponent, in which a radioactively-labelled element or compound
chemically identical with the microcomponent is added to the sample before
preconcentration and its behaviour is followed by sensitive, rapid and selective
radioactivity measurements.
Source:
PAC, 1979, 51, 1195
(Separation and preconcentration of trace substances. I - Preconcentration for inorganic
trace analysis)
on page 1200