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Single particle analysis of TiO in candy products using triple quadrupole ICP-MS.
Talanta
April 2018
University of Oviedo, Faculty of Chemistry, Dept. of Physical and Analytical Chemistry, C/ Julián Clavería 8, E-33006 Oviedo, Spain. Electronic address:
Titanium dioxide (TiO) belongs to the materials that have gained great importance in many applications. In its particulate form (micro- or nanoparticles), it has entered a huge number of consumer products and food-grade TiO, better known as E171 within the European Union, represents an important food additive. Thus, there is an increasing need for analytical methods able to detect and quantify such particles.
View Article and Find Full Text PDFPredominant time scales in fission processes in reactions of S, Ti and Ni with W: zeptosecond versus attosecond.
Phys Rev Lett
February 2011
Department of Nuclear Physics, Research School of Physics and Engineering, The Australian National University, ACT 0200, Australia.
The inhibition of fusion by quasifission is crucial in limiting the formation of superheavy elements in collisions of heavy nuclei. Time scales of ∼10(-18) s inferred for fissionlike events from recent crystal blocking measurements were interpreted to show either that quasifission itself is slower than previously believed, or that the fraction of slow fusion-fission is higher than expected. New measurements of mass-angle distributions for (48)Ti and (64)Ni bombarding W targets show that in these reactions quasifission is the dominant process, typically occurring before the system formed after contact has made a single rotation, corresponding to time scales of ≤10(-20) s.
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