technetium 99The half-life and specific activity of 99Tc were redetermined by measuring the activity of a known weight (determined coulometrically) of 99Tc by a liquid scintillation method and found to be 2·14(±0.·05) × 10 5 years and 3·75(±0·11) × 10 4 disintegration/min per...
The biological half-life of Tc (Tsub(p)sup(1/2) 60.6 d) has been investigated since it is not possible to investigate the biological fate of the bone-imaging Tc-complexes whose physical half-life is only 6 hr. The biological elimination curve after intravenous injection of Tc into a smal...
phys·i·cal half-life the time required for half the atoms of a radionuclide to undergo disintegration. Farlex Partner Medical Dictionary © Farlex 2012Want to thank TFD for its existence? Tell a friend about us, add a link to this page, or visit the webmaster's page for free fun cont...
Technetium generator Technetium-99m is used in 90% of radionuclide imaging, as it fulfils most of the above criteria. With its gamma energy of 140 keV, it is easily collimated and easily absorbed in a fairly thin crystal, thus giving good spatial resolution. With its short half-life (6 ...
The metastable form of Technetium-99 (Tc-99m) and Iodine-131 (I-131), both used in nuclear medicine procedures, have half-lives of only six (6) hours and eight (8) days, respectively. Tritium (Hydrogen-3 or H-3), a radioactive isotope of hydrogen and one that is produced both nat...
The clinical validation of gold-195m: A new short half-life radiopharmaceutical for rapid, sequential, first pass angiocardiography in patients With technetium-99m radiopharmaceuticals, first pass radionuclide angiocardiography is of limited use for multiple intervention studies because of the large radiat...
The sulfide of heptavalent technetium Tc2S7was precipi-tated from the Tc fraction adjusted to 2 M HCl by bubblinghydrogen sulfide at about 80◦C. The precipitate was col-lected on an alumina membrane filter of Anodisc 25 (poresize, 0.02 mm, Whatman Co., Ltd.), heated to dryness, ...
What is the approximate half life of uranium 238? What is the half-life of americium-241? What is the half-life of technetium-99m? What is the half life of U-238 for alpha decay? What is the half-life of radon? What does the half life tell about a radioisotope? What is the half...
Technetium Tc-101 – 14.2 minutes Tc-99 – 2.13E5 years Tc-99m – 6.02 hours Tellurium Te-125m – 58 days Te-127 – 9.35 hours Te-127m – 109 days Te-129 – 69.6 minutes Te-129m – 33.6 days Te-131 – 25.0 minutes Te-131m – 30 hours ...
Before the widespread application of technetium-99m in nuclear medicine, the radioactive isotope thallium-201, with a half-life of 73 hours, was the main substance for nuclear cardiography. 在核醫學廣泛使用鎝-99m之前,半衰期為73小時的鉈-201曾經是核心動描記所使用的主要放射性同位素。 WikiMatrix...