For example, when effecting epitope mapping by forming peptides from amino acid, with the apparatus of {TAIL ~ this invention}, the reagents introduced onto the membrane would comprise, in series, a protected amino acid which binds to the membrane, a wash reagent to remove {HEAD ~ 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 the apparatus of { TAIL ~ this invention } , the reagents introduced onto the membrane would comprise , in series , a protected amino acid which binds to the membrane , a wash reagent to remove { HEAD ~ 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
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