Probing dietary change of the Kwädąy Dän Ts'ìnchį individual, an ancient glacier body from British Columbia: II. Deconvoluting whole skin and bone collagen δ13C values via carbon isotope analysis of individual amino acids

Comparison of liquid chromatography–isotope ratio mass spectrometry (LC/IRMS) and gas chromatography–combustion–isotope ratio mass spectrometry (GC/C/IRMS) for the determination of collagen amino acid δ13C values for palaeodietary and palaeoecological reconstruction

“…The differentiation using this proxy is akin to previous applications, [8,9,16,53] and thus validates its use as an indicator of marine protein consumption. The mean error associated with LC/IRMS determinations of Δ…”

Organic Residues in Archaeology: The Highs and Lows of Recent Research

“…In the past it was considered that proteins, starches and sugars would not survive over archaeological time (9). However more recent research has found that, in some circumstances, these too can survive hundreds, perhaps thousands, of years (10)(11)(12)(13).…”

“…Since the discovery that the fractionation of stable isotopes can provide a new dimension to residue research, isotope ratio mass spectrometry (IRMS) has also become part of the residue analysts tool kit (18). Over the past 15 years the use of chromatography (gas or liquid) combined with combustion-isotope ratio mass spectrometry (eg GC-C-IRMS) to measure the carbon isotopic signatures of individual fatty acids and amino acids has also become relatively routine (3,11,19).…”

Investigation of amino acid δ13C signatures in bone collagen to reconstruct human palaeodiets using liquid chromatography–isotope ratio mass spectrometry

“…A single human and two dogs were measured (as an analogue for human diets) due to the lack of human remains from this period (Cannon et al, 1999;Richards et al, 2003;Corr et al, 2009). The most dominant terrestrial mammals recovered in the shell middens were deer (Cervus nippon) and wild boar (Sus scrofa).…”

“…Over the past decades, the technique of gas chromatography-combustion-isotope ratio mass spectrometry (GC-C-IRMS) has been used for the separation and measurement of amino acid carbon isotope compositions in bone collagen (Hare et al, 1991;Docherty et al, 2001;Howland et al, 2003;Corr et al, 2005Corr et al, , 2009Jim et al, 2006). While this has been an effective technique, a major drawback of GC-C-IRMS is that it requires derivatization (which involves the addition of carbon atoms) to make the amino acids volatile for analysis (Corr et al, 2007a,b).…”