SQL & PL/SQL

hi

i have a problem what i am trying to do use to reference a variable in my PL/SQL procedure
and the name of the variable comes from a table:

EXECUTE IMMEDIATE 'SELECT ' || deskbank_ref_rows(row_index).JUSTI­ FICATION || '(' || deskbank_ref_rows(row_index).FIELD­ VALUE ||
',' || deskbank_ref_rows(row_index).FIELD­ SIZE || ',' || deskbank_ref_rows(row_index).PADDI­ NGCHAR || ')' || ' FROM DUAL'
INTO v_result_set;

deskbank_ref_rows(row_index).FIELD­ VALUE contains the variable name from a table
i want the string literal returned by deskbank_ref_rows(row_index).FIELD­ VALUE to reference the variable with the same name as the string literal in my procedure

is this possible?