Neutron Activation Analysis for Phosphorus in a Study of Development in a Beetle Wing

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Science  14 Sep 1962:
Vol. 137, Issue 3533, pp. 865-866
DOI: 10.1126/science.137.3533.865


Neutron activation analysis was used to measure phosphorus in individual beetle wings during pupal and early adult stages. By counting neutroninduced P32 radioactivity it was possible to measure 0.005 ± 0.001, µg of phosphorus. The phosphorus content of the wings rises to maximum at eclosion and subsequently decreases with loss of cells.