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PROPUNERI LICENłĂ 2010 - Babes - Universitatea de Medicina si ...

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A. 50 µm<br />

B. 100 µm<br />

C. 180 µm<br />

D. 200 µm<br />

E. 300 µm<br />

Raspuns : A, C (9, pag. 893)<br />

26.28. La prepararea suspen<strong>si</strong>ilor se pot folo<strong>si</strong> ca umectanti :<br />

A. ten<strong>si</strong>oactivi<br />

B. parafina lichida<br />

C. ulei <strong>de</strong> floarea soarelui<br />

D. ulei <strong>de</strong> ricin<br />

E. guma arabica<br />

Raspuns : A (6, pag. 476)<br />

26.29. În suspen<strong>si</strong>ile farmaceutice, polimerii hidrofili actioneaza prin :<br />

A. solubilizare micelara<br />

B. conferire <strong>de</strong> sarcini electrice particulelor suspendate<br />

C. adsorbtie la suprafata particulelor insolubile sub forma unui strat multimolecular<br />

D. reducerea ten<strong>si</strong>unii interfaciale solid – lichid<br />

E. marirea vâscozitatii mediului <strong>de</strong> disper<strong>si</strong>e<br />

Raspuns : C, E (6, 476)<br />

26.30. Aprecierea gradului <strong>de</strong> floculare al unei suspen<strong>si</strong>i se <strong>de</strong>termina prin:<br />

A. metoda diluarii<br />

B. metoda colorarii<br />

C. masurarea volumului <strong>de</strong> sediment format<br />

D. metoda conductometrica<br />

E. masurarea indicelui <strong>de</strong> refractie<br />

Raspuns : C (6, pag. 478)<br />

26.31. La prepararea suspen<strong>si</strong>ilor <strong>de</strong> uz intern nu se folosesc:<br />

A. edulcoranti<br />

B. aromatizanti<br />

C. coloranti<br />

D. conservanti antimicrobieni<br />

253

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