2.3.3
Apparatus for Collection of Urine Spectniens
Specially desined individual metabolism cages were employed (ave Fly. 2.3),
2.3.4
Counting Equipment for Radivassay of Tissue Specimens
Tiasiie specimens were weighed, ashed, and assayed in the laboratory at the Atomic En-
ergy Project, UCLA. The probable error of radioassay on samples which contained radioactivity in amounts exceeding twiee the background was 5.0 per cent or less, Negative valuca
given in this report are from same’. :. which read definitely less than 1,5 times background,
where the probable errors would ha been in excess of 20 per cent.
BR ser
Pr,
Fig, 2.2— Arrangement of apparatus for measurement of thyrotd 1?!
ane]
>* OR:
uptake in rabbits,
Fig. 2.2— Metaboliam cage for postexpoaure urine and feces collection.
14