منابع مشابه
Isir Subpicosecond Pulse Radiolysis System
The highest time resolution of the pulse radiolysis had remained about 30 ps since the late 1960’s. To make clear the primary processes in the radiation chemistry and physics within 30 ps, we developed a stroboscopic pulse radiolysis system for the absorption spectroscopy with the time resolution of 2.0 ps (10-90% rise time). The time resolution of 2.0 ps was estimated from the time-dependent b...
متن کاملPulse radiolysis of aqueous thiocyanate solution.
The pulse radiolysis of N(2)O saturated aqueous solutions of KSCN was studied under neutral pH conditions. The observed optical absorption spectrum of the SCN(*) radical in solution is more complex than previously reported, but it is in good agreement with that measured in the gas phase. Kinetic traces at 330 and 472 nm corresponding to SCN(*) and (SCN)(2)(*-), respectively, were fit using a Mo...
متن کاملPulse Radiolysis of Tetraphenylcyclobutane in Hexamethylphosphoric Triamide Solution
r-1, c-2, t-3, t-4-tetraphenvlcyclobutane (TPCB) was irradiated in dilute solutions of hexa methylphosphoric triamide (HMPT) with 20 ns pulses of 16 MeV electrons. Solvated electrons (e^iv) produced during the radiolysis of HMPT react with TPCB with k = (6 ± 1) • 109 1/mol s. Simultaneously with the decay of the optical absorption of the solvated electrons, the formation of the absorption of t...
متن کاملEmission from charge recombination during the pulse radiolysis of arylethynylpyrenes.
Emission from several 1-(arylethynyl)pyrenes with a substituent on the aryl group (REPy, R = phenyl (PEPy), 4-dimethylaminophenyl (NPEPy), 4-isopropoxyphenyl (OPEPy), 2-quinonyl (QEPy), and 9-(10-cyanoanthracenyl) (AEPy)) was studied with time-resolved fluorescence measurements during pulse radiolysis in benzene. NPEPy and AEPy showed only monomer emission, while PEPy, OPEPy, and QEPy showed bo...
متن کاملSome biological interactions studied by pulse radiolysis techniques.
Complex formation betwel'n proteins and ùrug ' , mLLco-poly,;accharide;, an1l dyes, or detergent typc molecules is well documentcd in tbc litcraturc ( 1•3) and has been studied b y a varicty of methods including ultrafiltration , dialysis and metachromatic spcctrometry. In this romrnunication we attempt to show that thesl' binding procc ses can be gcnerally investigated by pulsc radiolysis whic...
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ژورنال
عنوان ژورنال: Journal of Research of the National Bureau of Standards Section A: Physics and Chemistry
سال: 1973
ISSN: 0022-4332
DOI: 10.6028/jres.077a.017