What are some typical dells?
Figure 5. Some dels for typical VOC’s and how those dels change with degradation Figure 5 summarizes some typical dels and how degradation changes them. It can be seen from that figure that degradation increases the del of the unreacted fraction – the lighter fraction of it goes away first, leaving behind the heavier fraction. This increases the 13C/12C ratio, causing dells to become more positive – indeed, when the degradation is extensive, the dels can even become positive.
