Hurr
one way to get consistent, valid data is to be sure that instruments are calibrated properly. use simple instruments to make measurements. select the best data to place into data tables. make the measurements as quickly as possible.

Protein and polypeptide sequences can be determined by first partially hydrolyzing the protein or polypeptide followed by amino acid sequencing of the fragment pieces using the chemical degradation process known as edman degradation. determine the sequence of the initial (18-amino acid) polypeptide that produces the following five partial sequences after hydrolysis and edman degradation.