Search results
Results From The WOW.Com Content Network
The power of prognosis from a myocardial perfusion scan is excellent and has been well tested, and this is "perhaps the area of nuclear cardiology where the evidence is most strong". [ 13 ] [ 16 ] Many radionuclides used for myocardial perfusion imaging, including rubidium-82 , technetium-99m and thallium-201 have similar typical effective ...
Scintigraphy (from Latin scintilla, "spark"), also known as a gamma scan, is a diagnostic test in nuclear medicine, where radioisotopes attached to drugs that travel to a specific organ or tissue (radiopharmaceuticals) are taken internally and the emitted gamma radiation is captured by gamma cameras, which are external detectors that form two-dimensional images [1] in a process similar to the ...
Thallium-202 (half-life 12.23 days) can be made in a cyclotron [4] while thallium-204 (half-life 3.78 years) is made by the neutron activation of stable thallium in a nuclear reactor. [ 5 ] In the fully ionized state, the isotope 205 Tl 81+ becomes beta-radioactive, undergoing bound-state β − decay to 205 Pb 81+ with a half-life of 291 +33
Tl 2 O 3 is metallic with high conductivity and is a degenerate n-type semiconductor which may have potential use in solar cells. [5] A method of producing Tl 2 O 3 by MOCVD is known. [6] Any practical use of thallium(III) oxide will always have to take account of thallium's poisonous nature. Contact with moisture and acids may form poisonous ...
3 has been shown to have hydroxyl-centred triangles of thallium, [Tl 3 (OH)] 2+, as a recurring motif throughout its solid structure. [23] The metalorganic compound thallium ethoxide (TlOEt, TlOC 2 H 5) is a heavy liquid (ρ 3.49 g·cm −3, m.p. −3 °C), [24] often used as a basic and soluble thallium source in organic and organometallic ...
Thallium has several oxides: Thallium(I) oxide Tl 2 O; Thallium(III) oxide Tl 2 O 3; Thallium(I) superoxide or thallium dioxide TlO 2; Tl 4 O 3 This page was last ...
Thallium(III) acetate is the acetate salt of thallium, with the chemical formula Tl(CH 3 COO) 3. As a selective culture medium in microbiology, [1] thallium acetate is toxic, [2] but it can also be used as a hair loss agent. Koremlu, a depilatory that contained the rat poison Thallium acetate was widely marketed during th 1930s.
Thallium(I) oxide is the inorganic compound of thallium and oxygen with the formula Tl 2 O in which thallium is in its +1 oxidation state. It is black and produces a basic yellow solution of thallium(I) hydroxide (TlOH) when dissolved in water. It is formed by heating solid TlOH or Tl 2 CO 3 in the absence of air.