For example, when effecting epitope mapping by forming peptides from amino acid, with {TAIL ~ the apparatus} of this invention, {HEAD ~ the reagents} introduced onto the membrane would comprise, in series, a protected amino acid which binds to the membrane, a wash reagent to remove excess amino acid, a deprotecting reagent to deprotect the bound amino acid, a wash reagent to remove excess deprotecting agent, a second protected amino acid to react with the bound deprotected amino acid and, if desired, a capping reagent 
For example , when effecting epitope mapping by forming peptides from amino acid , with { TAIL ~ the apparatus } of this invention , { HEAD ~ the reagents } introduced onto the membrane would comprise , in series , a protected amino acid which binds to the membrane , a wash reagent to remove excess amino acid , a deprotecting reagent to deprotect the bound amino acid , a wash reagent to remove excess deprotecting agent , a second protected amino acid to react with the bound deprotected amino acid and , if desired , a capping reagent
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH