Titanium nuclides

Other problems may be caused by the matrix of the sample itself. If chloride is present, a series of polyatomic chloride-containing species may cause major interferences. As an example, Ar CT is an intense peak that interferes with As". Arsenic is monoisotopic therefore appreciable levels of chloride in the sample will seriously compromise the precise determination of arsenic. Components of the sample matrix may also contribute to oxide formation. Oxides of the form MO give rise to peaks at the (M/Z)+16 position. One or more of these may interfere with nuclides of interest. An example of this is Ti 0 interfering with the analysis of Zn. The four other naturally occurring titanium isotopes would, of course, also give interference at their respective (M/Z)-i-16 values to any analytes with these masses. Formation of the oxide of the analyte also reduces the signal measured at M/Z. 

Example Titanium-44 captures one of its electrons to produce the nuclide scandium-44. 

Titanium-43 atoms undergo two positron emissions before they reach a stable nuclide. What is the final product ... 

In stars with very heavy average masses, helium burning may last for only a few million years before it is replaced by carbon fusion. In time this leads to the production of elements such as calcium, titanium, chromium, iron, and nickel fusion partly by helium capture, partly by the direct fusion of heavy nuclides. For example, two Si can combine to form Ni that can decay to Co which then decays to stable Fe. These last steps of production may occur rather rapidly in a few thousand years. When the nuclear fuel for fusion is exhausted, the star collapses and a supernova results. 

All parts in contact with solutions are made of inert materials. The chemical separation section is symmetrical and operated in an alternating mode between left and right. Simultaneously three operations are performed activity from the gas-jet (Stender et al. 1980) is collected on a polyethylene frit, previously collected activity is dissolved and transported to a column for chemical separation on one side, and the next colurtm is washed and conditioned on the other side. The products of interest are eluted from the columns onto preheated tantalum or titanium disks and the eluent is evaporated. After flaming and cooling, the disk is placed in the measuring position. Typical times from the end of irradiation to the start of measurements are 50 s, which makes it possible to study nuclides with a half-life down to 10—15 s. 

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