Masks early

Use of a high molecular weight, late eluting solvent that would not mask early eluting volatile compounds. 

No solvent peak that can mask early eluting volatiles appears in the chromatogram... 

B. Specific drugs and antidotes. For most agents, there Is no specific antidote. (See p 221 for hydrofluoric acid bums and p 302 for phenol bums.) In the past, corticosteroids were used by many clinicians in the hope of reducing scarring, but this treatment has been proved ineffective. Moreover, steroids may be harmful in the patient with perforation because they mask early signs of inflammation and inhibit resistance to infection. 

In the early stages of the synthesis, the stable, aromatic veratryl group had served admirably as a masking device for the a-carbon of the indole nucleus. It permitted the processes leading to the for-... 

Polymeric microparticles have been studied and developed for several years. Their contribution in the pharmacy field is of utmost importance in order to improve the efficiency of oral delivery of drugs. As drug carriers, polymer-based microparticles may avoid the early degradation of active molecules in undesirable sites of the gastrointestinal tract, mask unpleasant taste of drugs, reduce doses and side effects and improve bioavailability. Also, they allow the production of site-specific drug targeting, which consists of a suitable approach for the delivery of active molecules into desired tissues or cells in order to increase their efficiency. 

Eye Contact Flush eyes immediately with water for 10-15 min, then don a respiratory protective mask. Although miosis may be an early sign of agent exposure, do not administer an injection when miosis is the only sign present seek medical attention immediately. 

---