On the use of liquid scintillation counting of51Cr and14C in the twin tracer method of measuring assimilation efficiency

31 August 1977

journal article
research article
Published by Springer Nature in Oecologia

Vol. 30 (3), 249-251
https://doi.org/10.1007/bf01833631

Abstract

Calow and Fletcher (1972) calculated assimilation efficiency from the ratio of an assimilated radiotracer (¹⁴C) to a non-assimilated tracer (⁵¹Cr) in food and feces. Wightman (1975) improved the efficiency of their technique by using liquid scintillation to count both isotopes simultaneously, but stated incorrectly that it was not necessary to convert counts per minute (CPM) to disintegrations per minute (DPM). Unless the CPM data are corrected for quenching and converted to DPM prior to calculation of assimilation efficiency, a significant error may be introduced.

Keywords

This publication has 3 references indexed in Scilit:

An improved technique for measuring assimilation efficiency by the 51Cr−14C twin tracer method
Oecologia, 1975
A new radiotracer technique involving 14C and 51Cr, for estimating the assimilation efficiencies of aquatic, primary consumers
Oecologia, 1972
The simultaneous measurement of 51Cr and 14C by liquid scintillation counting
The International Journal of Applied Radiation and Isotopes, 1971

Cited by 12 articles