In the experimental model, a gamma counter
placed over rat livers detects over time the concentrations of radiotracers.
210Pb, 129I, 238U, 232Th and 40K were measured with a gamma counter
EG & G / ORTEC / Model 4001M was used to determine activity.
Radioactivity was measured using an automatic gamma counter
It is now indicated for lymphatic mapping using a handheld gamma counter
to locate lymph nodes draining a primary tumour site in patients with solid tumours for which this procedure is a component of intraoperative management.
Three tenders for the supply of (a) filters for the blood washing instruments, (b) a fully automated Gamma counter
, also (c) requisites for the blood washing unit.
Unbound (%B = 0) and bound (%B = 100) fractions were collected from the MARS 6 eluent and the [sup.125]I-[Tyr]-BNP-32 in each fraction was measured (1480 Wizard 3 Gamma Counter
, Spectrofuge) as shown in Fig.
The next morning, free and bound hormones were separated by addition of 100 [micro]L Sac-Cel (Immunodiagnostic Systems Limited, Tyne and Wear, UK) and a solution of cellulose-coupled antibodies (anti-sheep/goat); tubes were centrifuged, and the pellet of bound radiolabeled hormone was counted (Cobra gamma counter
; Packard, Boston, MA, USA).
This assay was measured using a Genesys[TM] 5000 gamma counter
(Laboratory Technologies, Inc.).
. A 2480 Automatic Gamma Counter
Wizard2 3" (Perkin Elmer, Waltham, MA, USA) was used to measure the radioactivity of samples retrieved from in vitro and in vivo experiments.