the CH and CH peaks must be corrected for. Whittle et al. [50] found that a 2suitable 3correction factor F can be calculated from the n-hexadecane absorbances by basing the correction on the absorbance at 2930cm-1 and letting F = A /A .

2930 2960 3030 2930

Table 2.1 gives the absorbances of solutions of n-hexadecane, pristane and toluene, and substituting these values in equation (2.2) gives:

For pure n-hexadecane and pristane the aromatic CH absorption should be zero, the small recorded measurements at 3030cm-1 being due to the shoulder of the CH and CH peaks. For n-hexadecane the term

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