north east amino acid racemization
Amino acids analysedConventional racemization analysis tends to report an allosioleucine / isoleucine (A/I or D/L ratio). This amino acid ratio has the advantage of being relative easy to measure and also sufficiently slow to be used to “date” sediments in the European Quaternary. Our new approach utilises multiple amino acids. However we have avoided trying to give a whole series of D/L values for each amino acid in each sample and instead we are using a theoretical model of protein degradation to derive a single value, the Degradation Model Kinetic value (or DMK). |
Amino acids mentioned in the text
|