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The Influence of Filtration of Atrasine on the Spectrum of Positron Lifetimes in Immobilized Liquid Filtration Membranes

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Pietrzak R., Maksymiuk E., Kajdas A.
Acta Physica Polonica A
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2006
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vol. 110
|
issue 5
649-658
EN
The spectra of positron lifetimes were investigated in elements which were later used to form an immobilized liquid membrane and also in the immobilized liquid membrane, after different times of atrasine filtration. Next, the spectra of positron lifetimes were separated out into three components. The values of the components of the positron lifetimes spectrum indicated the formation of the Ps-atom both in the elements composing the membrane and in the very membrane itself. An influence of the filtration time of atrasine on the values of all components of positron lifetimes spectrum was found. On the basis of Eldrup-Tao model, changes in the sizes of spherical free spaces in the membrane and relative free volume in which ortho-Ps annihilated were determined.
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Spectra of Positrons Lifetimes in Choose Gel Drugs

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Pietrzak R., Muszyńska J., Kajdas A.
Acta Physica Polonica A
|
2006
|
vol. 110
|
issue 5
659-665
EN
Spectra of positrons lifetimes in selected gel non-steride analgesic and antiphlogistic drugs were investigated. The basic components in them were sodium salts of diclophenac and they differed from one another with the chemical composition of other components. It was found that in all of the investigated spectra there occurred a component which testified to the formation of positronium. The differences in the values of ortho-Ps component lifetimes and their intensity can be attributed to the presence of ingredients modifying the effects of the drug.
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